WIP exports: draft endpoints for services along with a 'firwewall' consumer

CODEOWNERS

@@ -1,10 +1,8 @@
 clanServices/.* @pinpox @kenji
 
 lib/test/container-test-driver/.* @DavHau @mic92
-lib/inventory/.* @hsjobeki
-lib/inventoryClass/.* @hsjobeki
-
-modules/.* @hsjobeki
+lib/modules/inventory/.* @hsjobeki
+lib/modules/inventoryClass/.* @hsjobeki
 
 pkgs/clan-app/ui/.* @hsjobeki @brianmcgee
 pkgs/clan-app/clan_app/.* @qubasa @hsjobeki

checks/flake-module.nix

@@ -87,7 +87,6 @@ in
             # Container Tests
             nixos-test-container = self.clanLib.test.containerTest ./container nixosTestArgs;
             nixos-systemd-abstraction = self.clanLib.test.containerTest ./systemd-abstraction nixosTestArgs;
-            nixos-llm-test = self.clanLib.test.containerTest ./llm nixosTestArgs;
             nixos-test-user-firewall-iptables = self.clanLib.test.containerTest ./user-firewall/iptables.nix nixosTestArgs;
             nixos-test-user-firewall-nftables = self.clanLib.test.containerTest ./user-firewall/nftables.nix nixosTestArgs;
             nixos-test-extra-python-packages = self.clanLib.test.containerTest ./test-extra-python-packages nixosTestArgs;

checks/flash/flake-module.nix

@@ -58,53 +58,51 @@
         pkgs.buildPackages.xorg.lndir
         pkgs.glibcLocales
         pkgs.kbd.out
-        self.nixosConfigurations."test-flash-machine-${pkgs.stdenv.hostPlatform.system}".pkgs.perlPackages.ConfigIniFiles
-        self.nixosConfigurations."test-flash-machine-${pkgs.stdenv.hostPlatform.system}".pkgs.perlPackages.FileSlurp
+        self.nixosConfigurations."test-flash-machine-${pkgs.hostPlatform.system}".pkgs.perlPackages.ConfigIniFiles
+        self.nixosConfigurations."test-flash-machine-${pkgs.hostPlatform.system}".pkgs.perlPackages.FileSlurp
         pkgs.bubblewrap
 
-        self.nixosConfigurations."test-flash-machine-${pkgs.stdenv.hostPlatform.system}".config.system.build.toplevel
-        self.nixosConfigurations."test-flash-machine-${pkgs.stdenv.hostPlatform.system}".config.system.build.diskoScript
-        self.nixosConfigurations."test-flash-machine-${pkgs.stdenv.hostPlatform.system}".config.system.build.diskoScript.drvPath
+        self.nixosConfigurations."test-flash-machine-${pkgs.hostPlatform.system}".config.system.build.toplevel
+        self.nixosConfigurations."test-flash-machine-${pkgs.hostPlatform.system}".config.system.build.diskoScript
+        self.nixosConfigurations."test-flash-machine-${pkgs.hostPlatform.system}".config.system.build.diskoScript.drvPath
       ]
       ++ builtins.map (i: i.outPath) (builtins.attrValues self.inputs);
       closureInfo = pkgs.closureInfo { rootPaths = dependencies; };
     in
     {
       # Skip flash test on aarch64-linux for now as it's too slow
-      checks =
-        lib.optionalAttrs (pkgs.stdenv.isLinux && pkgs.stdenv.hostPlatform.system != "aarch64-linux")
-          {
-            nixos-test-flash = self.clanLib.test.baseTest {
-              name = "flash";
-              nodes.target = {
-                virtualisation.emptyDiskImages = [ 4096 ];
-                virtualisation.memorySize = 4096;
+      checks = lib.optionalAttrs (pkgs.stdenv.isLinux && pkgs.hostPlatform.system != "aarch64-linux") {
+        nixos-test-flash = self.clanLib.test.baseTest {
+          name = "flash";
+          nodes.target = {
+            virtualisation.emptyDiskImages = [ 4096 ];
+            virtualisation.memorySize = 4096;
 
-                virtualisation.useNixStoreImage = true;
-                virtualisation.writableStore = true;
+            virtualisation.useNixStoreImage = true;
+            virtualisation.writableStore = true;
 
-                environment.systemPackages = [ self.packages.${pkgs.system}.clan-cli ];
-                environment.etc."install-closure".source = "${closureInfo}/store-paths";
+            environment.systemPackages = [ self.packages.${pkgs.system}.clan-cli ];
+            environment.etc."install-closure".source = "${closureInfo}/store-paths";
 
-                nix.settings = {
-                  substituters = lib.mkForce [ ];
-                  hashed-mirrors = null;
-                  connect-timeout = lib.mkForce 3;
-                  flake-registry = "";
-                  experimental-features = [
-                    "nix-command"
-                    "flakes"
-                  ];
-                };
-              };
-              testScript = ''
-                start_all()
-                machine.succeed("echo 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIRWUusawhlIorx7VFeQJHmMkhl9X3QpnvOdhnV/bQNG root@target' > ./test_id_ed25519.pub")
-                # Some distros like to automount disks with spaces
-                machine.succeed('mkdir -p "/mnt/with spaces" && mkfs.ext4 /dev/vdc && mount /dev/vdc "/mnt/with spaces"')
-                machine.succeed("clan flash write --ssh-pubkey ./test_id_ed25519.pub --keymap de --language de_DE.UTF-8 --debug --flake ${self.checks.x86_64-linux.clan-core-for-checks} --yes --disk main /dev/vdc test-flash-machine-${pkgs.stdenv.hostPlatform.system}")
-              '';
-            } { inherit pkgs self; };
+            nix.settings = {
+              substituters = lib.mkForce [ ];
+              hashed-mirrors = null;
+              connect-timeout = lib.mkForce 3;
+              flake-registry = "";
+              experimental-features = [
+                "nix-command"
+                "flakes"
+              ];
+            };
           };
+          testScript = ''
+            start_all()
+            machine.succeed("echo 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIRWUusawhlIorx7VFeQJHmMkhl9X3QpnvOdhnV/bQNG root@target' > ./test_id_ed25519.pub")
+            # Some distros like to automount disks with spaces
+            machine.succeed('mkdir -p "/mnt/with spaces" && mkfs.ext4 /dev/vdc && mount /dev/vdc "/mnt/with spaces"')
+            machine.succeed("clan flash write --ssh-pubkey ./test_id_ed25519.pub --keymap de --language de_DE.UTF-8 --debug --flake ${self.checks.x86_64-linux.clan-core-for-checks} --yes --disk main /dev/vdc test-flash-machine-${pkgs.hostPlatform.system}")
+          '';
+        } { inherit pkgs self; };
+      };
     };
 }

checks/installation/flake-module.nix

@@ -160,9 +160,9 @@
           closureInfo = pkgs.closureInfo {
             rootPaths = [
               privateInputs.clan-core-for-checks
-              self.nixosConfigurations."test-install-machine-${pkgs.stdenv.hostPlatform.system}".config.system.build.toplevel
-              self.nixosConfigurations."test-install-machine-${pkgs.stdenv.hostPlatform.system}".config.system.build.initialRamdisk
-              self.nixosConfigurations."test-install-machine-${pkgs.stdenv.hostPlatform.system}".config.system.build.diskoScript
+              self.nixosConfigurations."test-install-machine-${pkgs.hostPlatform.system}".config.system.build.toplevel
+              self.nixosConfigurations."test-install-machine-${pkgs.hostPlatform.system}".config.system.build.initialRamdisk
+              self.nixosConfigurations."test-install-machine-${pkgs.hostPlatform.system}".config.system.build.diskoScript
               pkgs.stdenv.drvPath
               pkgs.bash.drvPath
               pkgs.buildPackages.xorg.lndir
@@ -215,7 +215,7 @@
                   # Prepare test flake and Nix store
                   flake_dir = prepare_test_flake(
                       temp_dir,
-                      "${self.checks.${pkgs.stdenv.hostPlatform.system}.clan-core-for-checks}",
+                      "${self.checks.${pkgs.hostPlatform.system}.clan-core-for-checks}",
                       "${closureInfo}"
                   )
 
@@ -296,7 +296,7 @@
                   # Prepare test flake and Nix store
                   flake_dir = prepare_test_flake(
                       temp_dir,
-                      "${self.checks.${pkgs.stdenv.hostPlatform.system}.clan-core-for-checks}",
+                      "${self.checks.${pkgs.hostPlatform.system}.clan-core-for-checks}",
                       "${closureInfo}"
                   )
 

checks/llm/default.nix

@@ -1,82 +0,0 @@
-{ self, pkgs, ... }:
-
-let
-
-  cli = self.packages.${pkgs.stdenv.hostPlatform.system}.clan-cli-full;
-
-  ollama-model = pkgs.callPackage ./qwen3-4b-instruct.nix { };
-in
-{
-  name = "llm";
-
-  nodes = {
-    peer1 =
-      { pkgs, ... }:
-      {
-
-        users.users.text-user = {
-          isNormalUser = true;
-          linger = true;
-          uid = 1000;
-          extraGroups = [ "systemd-journal" ];
-        };
-
-        # Set environment variables for user systemd
-        environment.extraInit = ''
-          if [ "$(id -u)" = "1000" ]; then
-            export XDG_RUNTIME_DIR="/run/user/1000"
-            export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/1000/bus"
-
-            ollama_dir="$HOME/.ollama"
-            mkdir -p "$ollama_dir"
-            ln -sf ${ollama-model}/models "$ollama_dir"/models
-          fi
-        '';
-
-        # Enable PAM for user systemd sessions
-        security.pam.services.systemd-user = {
-          startSession = true;
-          # Workaround for containers - use pam_permit to avoid helper binary issues
-          text = pkgs.lib.mkForce ''
-            account required pam_permit.so
-            session required pam_permit.so
-            session required pam_env.so conffile=/etc/pam/environment readenv=0
-            session required ${pkgs.systemd}/lib/security/pam_systemd.so
-          '';
-        };
-
-        environment.systemPackages = [
-          cli
-          pkgs.ollama
-          (cli.pythonRuntime.withPackages (
-            ps: with ps; [
-              pytest
-              pytest-xdist
-              (cli.pythonRuntime.pkgs.toPythonModule cli)
-              self.legacyPackages.${pkgs.stdenv.hostPlatform.system}.nixosTestLib
-            ]
-          ))
-        ];
-      };
-  };
-
-  testScript =
-    { ... }:
-    ''
-      start_all()
-
-      peer1.wait_for_unit("multi-user.target")
-      peer1.wait_for_unit("user@1000.service")
-
-      # Fix user journal permissions so text-user can read their own logs
-      peer1.succeed("chown text-user:systemd-journal /var/log/journal/*/user-1000.journal*")
-      peer1.succeed("chmod 640 /var/log/journal/*/user-1000.journal*")
-      # the -o adopts="" is needed to overwrite any args coming from pyproject.toml
-      # -p no:cacheprovider disables pytest's cacheprovider which tries to write to the nix store in this case
-      cmd = "su - text-user -c 'pytest -s -n0 -m service_runner -p no:cacheprovider -o addopts="" ${cli.passthru.sourceWithTests}/clan_lib/llm'"
-      print("Running tests with command: " + cmd)
-
-      # Run tests as text-user (environment variables are set automatically)
-      peer1.succeed(cmd)
-    '';
-}

checks/llm/qwen3-4b-instruct.nix

@@ -1,70 +0,0 @@
-{ pkgs }:
-
-let
-  # Got them from https://github.com/Gholamrezadar/ollama-direct-downloader
-
-  # Download manifest
-  manifest = pkgs.fetchurl {
-    url = "https://registry.ollama.ai/v2/library/qwen3/manifests/4b-instruct";
-    # You'll need to calculate this hash - run the derivation once and it will tell you the correct hash
-    hash = "sha256-Dtze80WT6sGqK+nH0GxDLc+BlFrcpeyi8nZiwY8Wi6A=";
-  };
-
-  # Download blobs
-  blob1 = pkgs.fetchurl {
-    url = "https://registry.ollama.ai/v2/library/qwen3/blobs/sha256:b72accf9724e93698c57cbd3b1af2d3341b3d05ec2089d86d273d97964853cd2";
-    hash = "sha256-tyrM+XJOk2mMV8vTsa8tM0Gz0F7CCJ2G0nPZeWSFPNI=";
-  };
-
-  blob2 = pkgs.fetchurl {
-    url = "https://registry.ollama.ai/v2/library/qwen3/blobs/sha256:85e4a5b7b8ef0e48af0e8658f5aaab9c2324c76c1641493f4d1e25fce54b18b9";
-    hash = "sha256-heSlt7jvDkivDoZY9aqrnCMkx2wWQUk/TR4l/OVLGLk=";
-  };
-
-  blob3 = pkgs.fetchurl {
-    url = "https://registry.ollama.ai/v2/library/qwen3/blobs/sha256:eade0a07cac7712787bbce23d12f9306adb4781d873d1df6e16f7840fa37afec";
-    hash = "sha256-6t4KB8rHcSeHu84j0S+TBq20eB2HPR324W94QPo3r+w=";
-  };
-
-  blob4 = pkgs.fetchurl {
-    url = "https://registry.ollama.ai/v2/library/qwen3/blobs/sha256:d18a5cc71b84bc4af394a31116bd3932b42241de70c77d2b76d69a314ec8aa12";
-    hash = "sha256-0YpcxxuEvErzlKMRFr05MrQiQd5wx30rdtaaMU7IqhI=";
-  };
-
-  blob5 = pkgs.fetchurl {
-    url = "https://registry.ollama.ai/v2/library/qwen3/blobs/sha256:0914c7781e001948488d937994217538375b4fd8c1466c5e7a625221abd3ea7a";
-    hash = "sha256-CRTHeB4AGUhIjZN5lCF1ODdbT9jBRmxeemJSIavT6no=";
-  };
-in
-pkgs.stdenv.mkDerivation {
-  pname = "ollama-qwen3-4b-instruct";
-  version = "1.0";
-
-  dontUnpack = true;
-
-  buildPhase = ''
-    mkdir -p $out/models/manifests/registry.ollama.ai/library/qwen3
-    mkdir -p $out/models/blobs
-
-    # Copy manifest
-    cp ${manifest} $out/models/manifests/registry.ollama.ai/library/qwen3/4b-instruct
-
-    # Copy blobs with correct names
-    cp ${blob1} $out/models/blobs/sha256-b72accf9724e93698c57cbd3b1af2d3341b3d05ec2089d86d273d97964853cd2
-    cp ${blob2} $out/models/blobs/sha256-85e4a5b7b8ef0e48af0e8658f5aaab9c2324c76c1641493f4d1e25fce54b18b9
-    cp ${blob3} $out/models/blobs/sha256-eade0a07cac7712787bbce23d12f9306adb4781d873d1df6e16f7840fa37afec
-    cp ${blob4} $out/models/blobs/sha256-d18a5cc71b84bc4af394a31116bd3932b42241de70c77d2b76d69a314ec8aa12
-    cp ${blob5} $out/models/blobs/sha256-0914c7781e001948488d937994217538375b4fd8c1466c5e7a625221abd3ea7a
-  '';
-
-  installPhase = ''
-    # buildPhase already created everything in $out
-    :
-  '';
-
-  meta = with pkgs.lib; {
-    description = "Qwen3 4B Instruct model for Ollama";
-    license = "apache-2.0";
-    platforms = platforms.all;
-  };
-}

checks/systemd-abstraction/default.nix

@@ -2,7 +2,7 @@
 
 let
 
-  cli = self.packages.${pkgs.stdenv.hostPlatform.system}.clan-cli-full;
+  cli = self.packages.${pkgs.hostPlatform.system}.clan-cli-full;
 in
 {
   name = "systemd-abstraction";
@@ -62,6 +62,6 @@ in
       peer1.succeed("chmod 640 /var/log/journal/*/user-1000.journal*")
 
       # Run tests as text-user (environment variables are set automatically)
-      peer1.succeed("su - text-user -c 'pytest -p no:cacheprovider -o addopts="" -s -n0 ${cli.passthru.sourceWithTests}/clan_lib/service_runner'")
+      peer1.succeed("su - text-user -c 'pytest -s -n0 ${cli}/${cli.pythonRuntime.sitePackages}/clan_lib/service_runner'")
     '';
 }

checks/update/flake-module.nix

@@ -115,9 +115,9 @@
               let
                 closureInfo = pkgs.closureInfo {
                   rootPaths = [
-                    self.packages.${pkgs.stdenv.hostPlatform.system}.clan-cli
-                    self.checks.${pkgs.stdenv.hostPlatform.system}.clan-core-for-checks
-                    self.clanInternals.machines.${pkgs.stdenv.hostPlatform.system}.test-update-machine.config.system.build.toplevel
+                    self.packages.${pkgs.hostPlatform.system}.clan-cli
+                    self.checks.${pkgs.hostPlatform.system}.clan-core-for-checks
+                    self.clanInternals.machines.${pkgs.hostPlatform.system}.test-update-machine.config.system.build.toplevel
                     pkgs.stdenv.drvPath
                     pkgs.bash.drvPath
                     pkgs.buildPackages.xorg.lndir
@@ -132,7 +132,7 @@
                   imports = [ self.nixosModules.test-update-machine ];
                 };
                 extraPythonPackages = _p: [
-                  self.legacyPackages.${pkgs.stdenv.hostPlatform.system}.nixosTestLib
+                  self.legacyPackages.${pkgs.hostPlatform.system}.nixosTestLib
                 ];
 
                 testScript = ''
@@ -154,7 +154,7 @@
                       # Prepare test flake and Nix store
                       flake_dir = prepare_test_flake(
                           temp_dir,
-                          "${self.checks.${pkgs.stdenv.hostPlatform.system}.clan-core-for-checks}",
+                          "${self.checks.${pkgs.hostPlatform.system}.clan-core-for-checks}",
                           "${closureInfo}"
                       )
                       (flake_dir / ".clan-flake").write_text("")  # Ensure .clan-flake exists
@@ -226,7 +226,7 @@
                             "--to",
                             "ssh://root@192.168.1.1",
                             "--no-check-sigs",
-                            f"${self.packages.${pkgs.stdenv.hostPlatform.system}.clan-cli}",
+                            f"${self.packages.${pkgs.hostPlatform.system}.clan-cli}",
                             "--extra-experimental-features", "nix-command flakes",
                         ],
                         check=True,
@@ -242,7 +242,7 @@
                           "-o", "UserKnownHostsFile=/dev/null",
                           "-o", "StrictHostKeyChecking=no",
                           f"root@192.168.1.1",
-                          "${self.packages.${pkgs.stdenv.hostPlatform.system}.clan-cli}/bin/clan",
+                          "${self.packages.${pkgs.hostPlatform.system}.clan-cli}/bin/clan",
                           "machines",
                           "update",
                           "--debug",
@@ -270,7 +270,7 @@
 
                       # Run clan update command
                       subprocess.run([
-                          "${self.packages.${pkgs.stdenv.hostPlatform.system}.clan-cli-full}/bin/clan",
+                          "${self.packages.${pkgs.hostPlatform.system}.clan-cli-full}/bin/clan",
                           "machines",
                           "update",
                           "--debug",
@@ -297,7 +297,7 @@
 
                       # Run clan update command with --build-host
                       subprocess.run([
-                          "${self.packages.${pkgs.stdenv.hostPlatform.system}.clan-cli-full}/bin/clan",
+                          "${self.packages.${pkgs.hostPlatform.system}.clan-cli-full}/bin/clan",
                           "machines",
                           "update",
                           "--debug",

clanServices/certificates/README.md

@@ -1,6 +1,3 @@
-!!! Danger "Experimental"
-    This service is experimental and will change in the future.
-
 This service sets up a certificate authority (CA) that can issue certificates to
 other machines in your clan. For this the `ca` role is used.
 It additionally provides a `default` role, that can be applied to all machines

clanServices/coredns/README.md

@@ -1,6 +1,3 @@
-!!! Danger "Experimental"
-    This service is experimental and will change in the future.
-
 This module enables hosting clan-internal services easily, which can be resolved
 inside your VPN. This allows defining a custom top-level domain (e.g. `.clan`)
 and exposing endpoints from a machine to others, which will be

clanServices/data-mesher/default.nix

@@ -1,7 +1,4 @@
-{
-  clanLib,
-  ...
-}:
+{ ... }:
 let
   sharedInterface =
     { lib, ... }:
@@ -54,15 +51,15 @@ let
       builtins.foldl' (
         urls: name:
         let
-          ip = clanLib.vars.getPublicValue {
-            flake = config.clan.core.settings.directory;
-            machine = name;
-            generator = "zerotier";
-            file = "zerotier-ip";
-            default = null;
-          };
+          ipPath = "${config.clan.core.settings.directory}/vars/per-machine/${name}/zerotier/zerotier-ip/value";
         in
-        if ip != null then urls ++ [ "[${ip}]:${builtins.toString settings.network.port}" ] else urls
+        if builtins.pathExists ipPath then
+          let
+            ip = builtins.readFile ipPath;
+          in
+          urls ++ [ "[${ip}]:${builtins.toString settings.network.port}" ]
+        else
+          urls
       ) [ ] (builtins.attrNames ((roles.admin.machines or { }) // (roles.signer.machines or { })))
     );
 
@@ -159,14 +156,9 @@ in
                   readHostKey =
                     machine:
                     let
-                      publicKey = clanLib.vars.getPublicValue {
-                        flake = config.clan.core.settings.directory;
-                        inherit machine;
-                        generator = "data-mesher-host-key";
-                        file = "public_key";
-                      };
+                      path = "${config.clan.core.settings.directory}/vars/per-machine/${machine}/data-mesher-host-key/public_key/value";
                     in
-                    builtins.elemAt (lib.splitString "\n" publicKey) 1;
+                    builtins.elemAt (lib.splitString "\n" (builtins.readFile path)) 1;
                 in
                 {
                   enable = true;

clanServices/firewall/default.nix

@@ -0,0 +1,34 @@
+{ clanLib, inventory, ... }:
+{
+  manifest.name = "clan-core/firewall";
+  manifest.description = "Configures firewall rules based on exported endpoints from other services";
+
+  roles.default.description = "Configures firewall rules based on exported endpoints from other services";
+
+  perMachine =
+    # firewall instances
+    {
+      exports,
+      machine,
+      lib,
+      ...
+    }:
+    let
+      instances = clanLib.resolveInstances machine inventory;
+
+      instancesTcpPorts = builtins.concatLists (
+        map (
+          instanceName:
+          lib.mapAttrsToList (_endpointName: cfg: cfg.port) exports.instances.${instanceName}.endpoints
+        ) instances
+      );
+      machineTcpPorts = lib.mapAttrsToList (
+        _endpointName: cfg: cfg.port
+      ) exports.instances.${machine.name}.endpoints;
+
+      allowedPorts = instancesTcpPorts ++ machineTcpPorts;
+    in
+    {
+      nixosModule.networking.firewall.allowedTCPPorts = allowedPorts;
+    };
+}

clanServices/hello-world/README.md

@@ -1,83 +1 @@
-!!! Danger "Experimental"
-    This service is for demonstration purpose only and may change in the future.
-
-The Hello-World Clan Service is a minimal example showing how to build and register your own service.
-
-It serves as a reference implementation and is used in clan-core CI tests to ensure compatibility.
-
-## What it demonstrates
-
-- How to define a basic Clan-compatible service.
-- How to structure your service for discovery and configuration.
-- How Clan services interact with nixos.
-
-## Testing
-
-This service demonstrates two levels of testing to ensure quality and stability across releases:
-
-1. **Unit & Integration Testing** — via [`nix-unit`](https://github.com/nix-community/nix-unit)
-2. **End-to-End Testing** — via **NixOS VM tests**, which we extended to support **container virtualization** for better performance.
-
-We highly advocate following the [Practical Testing Pyramid](https://martinfowler.com/articles/practical-test-pyramid.html):
-
-* Write **unit tests** for core logic and invariants.
-* Add **one or two end-to-end (E2E)** tests to confirm your service starts and behaves correctly in a real NixOS environment.
-
-NixOS is **untyped** and frequently changes; tests are the safest way to ensure long-term stability of services.
-
-```
-               / \
-              /   \
-             / E2E \
-            /-------\
-           /         \
-          /Integration\
-         /-------------\
-        /               \
-       /    Unit Tests   \
-       -------------------
-```
-
-### nix-unit
-
-We highly advocate the usage of
-
-[nix-unit](https://github.com/nix-community/nix-unit)
-
-Example in: tests/eval-tests.nix
-
-If you use flake-parts you can use the [native integration](https://flake.parts/options/nix-unit.html)
-
-If nix-unit succeeds you'r nixos evaluation should be mostly correct.
-
-!!! Tip
-    - Ensure most used 'settings' and variants are tested.
-    - Think about some important edge-cases your system should handle.
-
-### NixOS VM / Container Test
-
-!!! Warning "Early Vars & clanTest"
-    The testing system around vars is experimental
-
-    `clanTest` is still experimental and enables container virtualization by default.
-    This is still early and might have some limitations.
-
-Some minimal boilerplate is needed to use `clanTest`
-
-```nix
-nixosLib = import (inputs.nixpkgs + "/nixos/lib") { }
-nixosLib.runTest (
-    { ... }:
-    {
-        imports = [
-            self.modules.nixosTest.clanTest
-            # Example in tests/vm/default.nix
-            testModule
-        ];
-        hostPkgs = pkgs;
-
-        # Uncomment if you don't want or cannot use containers
-        # test.useContainers = false;
-    }
-)
-```
+This a test README just to appease the eval warnings if we don't have one

clanServices/hello-world/default.nix

@@ -8,7 +8,7 @@
 {
   _class = "clan.service";
   manifest.name = "clan-core/hello-word";
-  manifest.description = "Minimal example clan service that greets the world";
+  manifest.description = "This is a test";
   manifest.readme = builtins.readFile ./README.md;
 
   # This service provides two roles: "morning" and "evening". Roles can be
@@ -45,6 +45,12 @@
         ...
       }:
       {
+        exports.endpoints.greeting = {
+          port = 80;
+        };
+        exports.endpoints.uptime = {
+          port = 80;
+        };
         # Analog to 'perSystem' of flake-parts.
         # For every instance of this service we will add a nixosModule to a morning-machine
         nixosModule =
@@ -89,6 +95,9 @@
   perMachine =
     { machine, ... }:
     {
+      exports.endpoints.core-online = {
+        port = 8080;
+      };
       nixosModule =
         { pkgs, ... }:
         {

clanServices/hello-world/flake-module.nix

@@ -26,7 +26,7 @@ in
             # The hello-world service being tested
             ../../clanServices/hello-world
             # Required modules
-            ../../nixosModules
+            ../../nixosModules/clanCore
           ];
           testName = "hello-world";
           tests = ./tests/eval-tests.nix;

clanServices/hello-world/tests/eval-tests.nix

@@ -4,7 +4,7 @@
   ...
 }:
 let
-  testClan = clanLib.clan {
+  testFlake = clanLib.clan {
     self = { };
     # Point to the folder of the module
     # TODO: make this optional
@@ -33,20 +33,10 @@ let
   };
 in
 {
-  /**
-    We highly advocate the usage of:
-    https://github.com/nix-community/nix-unit
-
-    If you use flake-parts you can use the native integration: https://flake.parts/options/nix-unit.html
-  */
   test_simple = {
-    # Allows inspection via the nix-repl
-    # Ignored by nix-unit; it only looks at 'expr' and 'expected'
-    inherit testClan;
+    config = testFlake.config;
 
-    # Assert that jon has the
-    # configured greeting in 'environment.etc.hello.text'
-    expr = testClan.config.nixosConfigurations.jon.config.environment.etc."hello".text;
-    expected = "Good evening World!";
+    expr = { };
+    expected = { };
   };
 }

clanServices/internet/README.md

@@ -1,5 +1,8 @@
-!!! Danger "Experimental"
-    This service is experimental and will change in the future.
+🚧🚧🚧 Experimental 🚧🚧🚧
+
+Use at your own risk.
+
+We are still refining its interfaces, instability and breakages are expected.
 
 ---
 

clanServices/internet/default.nix

@@ -16,7 +16,6 @@
         options = {
           host = lib.mkOption {
             type = lib.types.str;
-            default = "";
             description = ''
               ip address or hostname (domain) of the machine
             '';

clanServices/monitoring/README.md

@@ -1,6 +1,3 @@
-!!! Danger "Experimental"
-    This service is experimental and will change in the future.
-
 ## Usage
 
 ```

clanServices/monitoring/telegraf.nix

@@ -44,10 +44,8 @@
               pkgs.openssl
             ];
 
-            # TODO: Implement automated certificate rotation instead of using a 100-year expiration
             script = ''
               openssl req -x509 -nodes -newkey rsa:4096 \
-                -days 36500 \
                 -keyout "$out"/key \
                 -out "$out"/crt \
                 -subj "/C=US/ST=CA/L=San Francisco/O=Example Corp/OU=IT/CN=example.com"

clanServices/monitoring/tests/vm/vars/per-machine/peer1/telegraf-certs/crt/value

@@ -1,33 +1,33 @@
 -----BEGIN CERTIFICATE-----
-MIIFuzCCA6OgAwIBAgIUNV3+MOkEcQinHmoFprxZfyR6TF4wDQYJKoZIhvcNAQEL
+MIIFuTCCA6GgAwIBAgIUMXnA00bMrYvYSq0PjU5/HhXTpmcwDQYJKoZIhvcNAQEL
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-VQQDDAtleGFtcGxlLmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIB
-AMbUCTs38JdEFlz+fiEwsEb9OV+6u4P5pkKkRFIJ04sTW9/NIeUJx5xOcAPn6B8K
-mi+d6vHln2WDCNJHqthGHQDS250x8Qs+JrmtIvDPko+oDOlbWMPiT4Lv6p134+lV
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-D1hOs4gOQ853+83L/Ej4ESTj0B04NLVMlzMGtl3qcA==
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+k1PNWTkgLsXO8DNkCudxcvPElXfmaw6zwaLrZys=
 -----END CERTIFICATE-----

clanServices/monitoring/tests/vm/vars/per-machine/peer1/telegraf-certs/key/secret

@@ -1,18 +1,19 @@
 {
-	"data": "ENC[AES256_GCM,data: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,iv:dGSmyDNBdVyF54bYS/Zxm2NNXZyGtLjkyYlrI9/nKvc=,tag:ip2fy76NjObWbW20HyuZUA==,type:str]",
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-		"version": "3.11.0"
+		"lastmodified": "2025-09-18T14:33:37Z",
+		"mac": "ENC[AES256_GCM,data:XKCnd0QrAlOCECSeSvbLYHMLbmUh4fMRnLaTb5ARoP4Zc9joWGsCaRZxokc2/sG4BXA/6pkbQXHyIOudKbcBpVjjvs9E+6Mnzt53nfRoH/iOkYPbN2EO49okVZJXW0M1rlBxrxvGuiDlz2p2p6L7neKLy4EB482pYea5+dUr2Yw=,iv:oj/MkZCfkvCmAb79uzEvKwEAm1bKtWhS4rPRAWSgRgw=,tag:h5TPPILXkhJplnDT2Gqtfw==,type:str]",
+		"unencrypted_suffix": "_unencrypted",
+		"version": "3.10.2"
 	}
 }

clanServices/sshd/default.nix

@@ -29,7 +29,7 @@
       };
 
     perInstance =
-      { settings, roles, ... }:
+      { settings, ... }:
       {
         nixosModule =
           {
@@ -38,19 +38,8 @@
             pkgs,
             ...
           }:
-          let
-            uniqueStrings = list: builtins.attrNames (builtins.groupBy lib.id list);
-            # Collect searchDomains from all servers in this instance
-            allServerSearchDomains = lib.flatten (
-              lib.mapAttrsToList (_name: machineConfig: machineConfig.settings.certificate.searchDomains or [ ]) (
-                roles.server.machines or { }
-              )
-            );
-            # Merge client's searchDomains with all servers' searchDomains
-            searchDomains = uniqueStrings (settings.certificate.searchDomains ++ allServerSearchDomains);
-          in
           {
-            clan.core.vars.generators.openssh-ca = lib.mkIf (searchDomains != [ ]) {
+            clan.core.vars.generators.openssh-ca = lib.mkIf (settings.certificate.searchDomains != [ ]) {
               share = true;
               files.id_ed25519.deploy = false;
               files."id_ed25519.pub" = {
@@ -65,9 +54,9 @@
               '';
             };
 
-            programs.ssh.knownHosts.ssh-ca = lib.mkIf (searchDomains != [ ]) {
+            programs.ssh.knownHosts.ssh-ca = lib.mkIf (settings.certificate.searchDomains != [ ]) {
               certAuthority = true;
-              extraHostNames = builtins.map (domain: "*.${domain}") searchDomains;
+              extraHostNames = builtins.map (domain: "*.${domain}") settings.certificate.searchDomains;
               publicKey = config.clan.core.vars.generators.openssh-ca.files."id_ed25519.pub".value;
             };
           };

clanServices/syncthing/flake-module.nix

@@ -22,7 +22,6 @@ in
             ../../clanServices/syncthing
             # Required modules
             ../../nixosModules/clanCore
-            ../../nixosModules/machineModules
             # Dependencies like clan-cli
             ../../pkgs/clan-cli
           ];

clanServices/tor/README.md

@@ -1,5 +1,8 @@
-!!! Danger "Experimental"
-    This service is experimental and will change in the future.
+🚧🚧🚧 Experimental 🚧🚧🚧
+
+Use at your own risk.
+
+We are still refining its interfaces, instability and breakages are expected.
 
 ---
 

clanServices/wifi/tests/eval-tests.nix

@@ -41,14 +41,14 @@ let
   # In this case it is 'self-zerotier-redux'
   # This is usually only used internally, but we can use it to test the evaluation of service module in isolation
   # evaluatedService =
-  #   testFlake.clanInternals.inventoryClass.distributedServices.servicesEval.config.mappedServices.self-zerotier-redux.config;
+  #   testFlake.clanInternals.inventoryClass.distributedServices.importedModulesEvaluated.self-zerotier-redux.config;
 in
 {
   test_simple = {
     inherit testFlake;
 
     expr =
-      testFlake.config.clan.clanInternals.inventoryClass.distributedServices.servicesEval.config.mappedServices.self-wifi.config;
+      testFlake.config.clan.clanInternals.inventoryClass.distributedServices.importedModulesEvaluated.self-wifi.config;
     expected = 1;
 
     # expr = {

clanServices/wireguard/default.nix

@@ -54,10 +54,7 @@
       - For other controllers: The controller's /56 subnet
 */
 
-{
-  clanLib,
-  ...
-}:
+{ ... }:
 let
   # Shared module for extraHosts configuration
   extraHostsModule =
@@ -77,12 +74,10 @@ let
           controllerHosts = lib.mapAttrsToList (
             name: _value:
             let
-              prefix = clanLib.vars.getPublicValue {
-                flake = config.clan.core.settings.directory;
-                machine = name;
-                generator = "wireguard-network-${instanceName}";
-                file = "prefix";
-              };
+              prefix = builtins.readFile (
+                config.clan.core.settings.directory
+                + "/vars/per-machine/${name}/wireguard-network-${instanceName}/prefix/value"
+              );
               # Controller IP is always ::1 in their subnet
               ip = prefix + "::1";
             in
@@ -93,24 +88,20 @@ let
           peerHosts = lib.mapAttrsToList (
             peerName: peerValue:
             let
-              peerSuffix = clanLib.vars.getPublicValue {
-                flake = config.clan.core.settings.directory;
-                machine = peerName;
-                generator = "wireguard-network-${instanceName}";
-                file = "suffix";
-              };
+              peerSuffix = builtins.readFile (
+                config.clan.core.settings.directory
+                + "/vars/per-machine/${peerName}/wireguard-network-${instanceName}/suffix/value"
+              );
               # Determine designated controller
               designatedController =
                 if (builtins.length (builtins.attrNames roles.controller.machines) == 1) then
                   (builtins.head (builtins.attrNames roles.controller.machines))
                 else
                   peerValue.settings.controller;
-              controllerPrefix = clanLib.vars.getPublicValue {
-                flake = config.clan.core.settings.directory;
-                machine = designatedController;
-                generator = "wireguard-network-${instanceName}";
-                file = "prefix";
-              };
+              controllerPrefix = builtins.readFile (
+                config.clan.core.settings.directory
+                + "/vars/per-machine/${designatedController}/wireguard-network-${instanceName}/prefix/value"
+              );
               peerIP = controllerPrefix + ":" + peerSuffix;
             in
             "${peerIP} ${peerName}.${domain}"
@@ -229,12 +220,10 @@ in
                 lib.mapAttrsToList (
                   ctrlName: _:
                   let
-                    controllerPrefix = clanLib.vars.getPublicValue {
-                      flake = config.clan.core.settings.directory;
-                      machine = ctrlName;
-                      generator = "wireguard-network-${instanceName}";
-                      file = "prefix";
-                    };
+                    controllerPrefix = builtins.readFile (
+                      config.clan.core.settings.directory
+                      + "/vars/per-machine/${ctrlName}/wireguard-network-${instanceName}/prefix/value"
+                    );
                     peerIP = controllerPrefix + ":" + peerSuffix;
                   in
                   "${peerIP}/56"
@@ -245,22 +234,20 @@ in
 
               # Connect to all controllers
               peers = lib.mapAttrsToList (name: value: {
-                publicKey = clanLib.vars.getPublicValue {
-                  flake = config.clan.core.settings.directory;
-                  machine = name;
-                  generator = "wireguard-keys-${instanceName}";
-                  file = "publickey";
-                };
+                publicKey = (
+                  builtins.readFile (
+                    config.clan.core.settings.directory
+                    + "/vars/per-machine/${name}/wireguard-keys-${instanceName}/publickey/value"
+                  )
+                );
 
                 # Allow each controller's /56 subnet
                 allowedIPs = [
                   "${
-                    clanLib.vars.getPublicValue {
-                      flake = config.clan.core.settings.directory;
-                      machine = name;
-                      generator = "wireguard-network-${instanceName}";
-                      file = "prefix";
-                    }
+                    builtins.readFile (
+                      config.clan.core.settings.directory
+                      + "/vars/per-machine/${name}/wireguard-network-${instanceName}/prefix/value"
+                    )
                   }::/56"
                 ];
 
@@ -362,29 +349,25 @@ in
                 if allPeers ? ${name} then
                   # For peers: they now have our entire /56 subnet
                   {
-                    publicKey = clanLib.vars.getPublicValue {
-                      flake = config.clan.core.settings.directory;
-                      machine = name;
-                      generator = "wireguard-keys-${instanceName}";
-                      file = "publickey";
-                    };
+                    publicKey = (
+                      builtins.readFile (
+                        config.clan.core.settings.directory
+                        + "/vars/per-machine/${name}/wireguard-keys-${instanceName}/publickey/value"
+                      )
+                    );
 
                     # Allow the peer's /96 range in ALL controller subnets
                     allowedIPs = lib.mapAttrsToList (
                       ctrlName: _:
                       let
-                        controllerPrefix = clanLib.vars.getPublicValue {
-                          flake = config.clan.core.settings.directory;
-                          machine = ctrlName;
-                          generator = "wireguard-network-${instanceName}";
-                          file = "prefix";
-                        };
-                        peerSuffix = clanLib.vars.getPublicValue {
-                          flake = config.clan.core.settings.directory;
-                          machine = name;
-                          generator = "wireguard-network-${instanceName}";
-                          file = "suffix";
-                        };
+                        controllerPrefix = builtins.readFile (
+                          config.clan.core.settings.directory
+                          + "/vars/per-machine/${ctrlName}/wireguard-network-${instanceName}/prefix/value"
+                        );
+                        peerSuffix = builtins.readFile (
+                          config.clan.core.settings.directory
+                          + "/vars/per-machine/${name}/wireguard-network-${instanceName}/suffix/value"
+                        );
                       in
                       "${controllerPrefix}:${peerSuffix}/96"
                     ) roles.controller.machines;
@@ -394,21 +377,19 @@ in
                 else
                   # For other controllers: use their /56 subnet
                   {
-                    publicKey = clanLib.vars.getPublicValue {
-                      flake = config.clan.core.settings.directory;
-                      machine = name;
-                      generator = "wireguard-keys-${instanceName}";
-                      file = "publickey";
-                    };
+                    publicKey = (
+                      builtins.readFile (
+                        config.clan.core.settings.directory
+                        + "/vars/per-machine/${name}/wireguard-keys-${instanceName}/publickey/value"
+                      )
+                    );
 
                     allowedIPs = [
                       "${
-                        clanLib.vars.getPublicValue {
-                          flake = config.clan.core.settings.directory;
-                          machine = name;
-                          generator = "wireguard-network-${instanceName}";
-                          file = "prefix";
-                        }
+                        builtins.readFile (
+                          config.clan.core.settings.directory
+                          + "/vars/per-machine/${name}/wireguard-network-${instanceName}/prefix/value"
+                        )
                       }::/56"
                     ];
 

clanServices/yggdrasil/README.md

@@ -1,20 +1,7 @@
-!!! Danger "Experimental"
-    This service is experimental and will change in the future.
+This module sets up [yggdrasil](https://yggdrasil-network.github.io/) across your clan. 
 
----
-
-This module sets up [yggdrasil](https://yggdrasil-network.github.io/) across your clan.
-
-Yggdrasil is designed to be a future-proof and decentralised alternative to the
-structured routing protocols commonly used today on the internet. Inside your
-clan, it will allow you to reach all of your machines.
-
-If you have other services in your inventory which export peers (e.g. the
-`internet` or the services) as [service
-exports](https://docs.clan.lol/reference/options/clan_service/#exports), they
-will be added as yggdrasil peers automatically. This allows using the stable
-yggdrasil IPv6 address to refer to other hosts and letting yggdrasil decide on
-the best routing based on available connections.
+Yggdrasil is designed to be a future-proof and decentralised alternative to
+the structured routing protocols commonly used today on the internet. Inside your clan, it will allow you to reach all of your machines.
 
 ## Example Usage
 

clanServices/yggdrasil/default.nix

@@ -29,13 +29,12 @@
           ];
         };
 
-        options.extraPeers = lib.mkOption {
+        options.peers = lib.mkOption {
           type = lib.types.listOf lib.types.str;
           default = [ ];
           description = ''
-            Additional static peers to configure for this host. If you use a
-            VPN clan service, it will automatically be added as peers to other hosts.
-            Local peers are also auto-discovered and don't need to be added.
+            Static peers to configure for this host.
+            If not set, local peers will be auto-discovered
           '';
           example = [
             "tcp://192.168.1.1:6443"
@@ -46,67 +45,16 @@
         };
       };
     perInstance =
-      {
-        settings,
-        roles,
-        exports,
-        ...
-      }:
+      { settings, ... }:
       {
         nixosModule =
           {
             config,
             pkgs,
-            lib,
-            clan-core,
             ...
           }:
-          let
-
-            mkPeers = ip: [
-              # "tcp://${ip}:6443"
-              "quic://${ip}:6443"
-              "ws://${ip}:6443"
-              "tls://${ip}:6443"
-            ];
-
-            select' = clan-core.inputs.nix-select.lib.select;
-
-            # TODO make it nicer @lassulus, @picnoir wants microlens
-            # Get a list of all exported IPs from all VPN modules
-            exportedPeerIPs = builtins.foldl' (
-              acc: e:
-              if e == { } then
-                acc
-              else
-                acc ++ (lib.flatten (builtins.filter (s: s != "") (lib.attrValues (select' "peers.*.plain" e))))
-            ) [ ] (lib.attrValues (select' "instances.*.networking.?peers.*.host.?plain" exports));
-
-            # Construct a list of peers in yggdrasil format
-            exportedPeers = lib.flatten (map mkPeers exportedPeerIPs);
-
-          in
           {
 
-            # Set <yggdrasil ip> <hostname>.<tld> for all hosts.
-            # Networking modules will then add themselves as peers, so we can
-            # always use this to resolve a host via the best possible route,
-            # doing fail-over if needed.
-            networking.extraHosts = lib.strings.concatStringsSep "\n" (
-              lib.filter (n: n != "") (
-                map (
-                  name:
-                  let
-                    ipPath = "${config.clan.core.settings.directory}/vars/per-machine/${name}/yggdrasil/address/value";
-                  in
-                  if builtins.pathExists ipPath then
-                    "${builtins.readFile ipPath} ${name}.${config.clan.core.settings.tld}"
-                  else
-                    ""
-                ) (lib.attrNames roles.default.machines)
-              )
-            );
-
             clan.core.vars.generators.yggdrasil = {
 
               files.privateKey = { };
@@ -151,7 +99,7 @@
               settings = {
                 PrivateKeyPath = "/key";
                 IfName = "ygg";
-                Peers = lib.lists.unique (exportedPeers ++ settings.extraPeers);
+                Peers = settings.peers;
                 MulticastInterfaces = [
                   # Ethernet is preferred over WIFI
                   {

clanServices/yggdrasil/tests/vm/default.nix

@@ -17,13 +17,6 @@
         roles.default.machines.peer1 = { };
         roles.default.machines.peer2 = { };
       };
-
-      # Peers are set form exports of the internet service
-      instances."internet" = {
-        module.name = "internet";
-        roles.default.machines.peer1.settings.host = "peer1";
-        roles.default.machines.peer2.settings.host = "peer2";
-      };
     };
   };
 

clanServices/zerotier/default.nix

@@ -1,7 +1,4 @@
-{
-  clanLib,
-  ...
-}:
+{ ... }:
 {
   _class = "clan.service";
   manifest.name = "clan-core/zerotier";
@@ -42,7 +39,6 @@
             imports = [
               (import ./shared.nix {
                 inherit
-                  clanLib
                   instanceName
                   roles
                   config
@@ -94,7 +90,6 @@
             imports = [
               (import ./shared.nix {
                 inherit
-                  clanLib
                   instanceName
                   roles
                   config
@@ -147,7 +142,6 @@
             imports = [
               (import ./shared.nix {
                 inherit
-                  clanLib
                   instanceName
                   roles
                   config
@@ -166,16 +160,15 @@
                   );
                   networkIps = builtins.foldl' (
                     ips: name:
-                    let
-                      ztIp = clanLib.vars.getPublicValue {
-                        flake = config.clan.core.settings.directory;
-                        machine = name;
-                        generator = "zerotier";
-                        file = "zerotier-ip";
-                        default = null;
-                      };
-                    in
-                    if ztIp != null then ips ++ [ ztIp ] else ips
+                    if
+                      builtins.pathExists "${config.clan.core.settings.directory}/vars/per-machine/${name}/zerotier/zerotier-ip/value"
+                    then
+                      ips
+                      ++ [
+                        (builtins.readFile "${config.clan.core.settings.directory}/vars/per-machine/${name}/zerotier/zerotier-ip/value")
+                      ]
+                    else
+                      ips
                   ) [ ] machines;
                   allHostIPs = settings.allowedIps ++ networkIps;
                 in

clanServices/zerotier/flake-module.nix

@@ -21,7 +21,6 @@ in
             ../../clanServices/zerotier
             # Required modules
             ../../nixosModules/clanCore
-            ../../nixosModules/machineModules
             # Dependencies like clan-cli
             ../../pkgs/clan-cli
           ];

clanServices/zerotier/shared.nix

@@ -1,5 +1,4 @@
 {
-  clanLib,
   lib,
   config,
   pkgs,
@@ -9,26 +8,20 @@
 }:
 let
   controllerMachine = builtins.head (lib.attrNames roles.controller.machines or { });
-  networkId = clanLib.vars.getPublicValue {
-    flake = config.clan.core.settings.directory;
-    machine = controllerMachine;
-    generator = "zerotier";
-    file = "zerotier-network-id";
-    default = null;
-  };
+  networkIdPath = "${config.clan.core.settings.directory}/vars/per-machine/${controllerMachine}/zerotier/zerotier-network-id/value";
+  networkId = if builtins.pathExists networkIdPath then builtins.readFile networkIdPath else null;
   moons = lib.attrNames (roles.moon.machines or { });
   moonIps = builtins.foldl' (
     ips: name:
-    let
-      moonIp = clanLib.vars.getPublicValue {
-        flake = config.clan.core.settings.directory;
-        machine = name;
-        generator = "zerotier";
-        file = "zerotier-ip";
-        default = null;
-      };
-    in
-    if moonIp != null then ips ++ [ moonIp ] else ips
+    if
+      builtins.pathExists "${config.clan.core.settings.directory}/vars/per-machine/${name}/zerotier/zerotier-ip/value"
+    then
+      ips
+      ++ [
+        (builtins.readFile "${config.clan.core.settings.directory}/vars/per-machine/${name}/zerotier/zerotier-ip/value")
+      ]
+    else
+      ips
   ) [ ] moons;
 in
 {

devFlake/flake.lock

@@ -3,10 +3,10 @@
     "clan-core-for-checks": {
       "flake": false,
       "locked": {
-        "lastModified": 1762113984,
-        "narHash": "sha256-Gwah5F3ONMhvTYbsnJM4bAv0qcaI3wjz1Nq0rBGWVgo=",
+        "lastModified": 1760361585,
+        "narHash": "sha256-v4PnSmt1hXW4dSgVWxcd1ZeEBlhO7NksNRC5cX7L5iw=",
         "ref": "main",
-        "rev": "0f847b4799deee4a2c878ba69bda9c446fe16177",
+        "rev": "7e7e58eb64ef61beb0a938a6622ec0122382131b",
         "shallow": true,
         "type": "git",
         "url": "https://git.clan.lol/clan/clan-core"
@@ -105,11 +105,11 @@
     },
     "nixpkgs-dev": {
       "locked": {
-        "lastModified": 1762080734,
-        "narHash": "sha256-fFunzA7ITlPHRr7dECaFGTBucNiWYEVDNPBw/9gFmII=",
+        "lastModified": 1760965023,
+        "narHash": "sha256-cpcgkeLApMGFCdp4jFqeIxTwlcGaSI+Zwmv8z2E85pY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "bc7f6fa86de9b208edf4ea7bbf40bcd8cc7d70a5",
+        "rev": "40ef6b9aa73f70b265c29df083fafae66b9df351",
         "type": "github"
       },
       "original": {
@@ -128,11 +128,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761730856,
-        "narHash": "sha256-t1i5p/vSWwueZSC0Z2BImxx3BjoUDNKyC2mk24krcMY=",
+        "lastModified": 1760652422,
+        "narHash": "sha256-C88Pgz38QIl9JxQceexqL2G7sw9vodHWx1Uaq+NRJrw=",
         "owner": "NuschtOS",
         "repo": "search",
-        "rev": "e29de6db0cb3182e9aee75a3b1fd1919d995d85b",
+        "rev": "3ebeebe8b6a49dfb11f771f761e0310f7c48d726",
         "type": "github"
       },
       "original": {
@@ -208,11 +208,11 @@
         "nixpkgs": []
       },
       "locked": {
-        "lastModified": 1761311587,
-        "narHash": "sha256-Msq86cR5SjozQGCnC6H8C+0cD4rnx91BPltZ9KK613Y=",
+        "lastModified": 1760945191,
+        "narHash": "sha256-ZRVs8UqikBa4Ki3X4KCnMBtBW0ux1DaT35tgsnB1jM4=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "2eddae033e4e74bf581c2d1dfa101f9033dbd2dc",
+        "rev": "f56b1934f5f8fcab8deb5d38d42fd692632b47c2",
         "type": "github"
       },
       "original": {

docs/site/getting-started/convert-existing-NixOS-configuration.md

@@ -88,7 +88,6 @@ For the provide flake example, your flake should now look like this:
       self = self; # this needs to point at the repository root
       specialArgs = {};
       meta.name = throw "Change me to something unique";
-      meta.tld = throw "Change me to something unique";
 
       machines = {
         berlin = {

docs/site/getting-started/creating-your-first-clan.md

@@ -51,7 +51,7 @@ Make sure you have the following:
     **Note:** This creates a new directory in your current location
 
     ```shellSession
-    nix run "https://git.clan.lol/clan/clan-core/archive/main.tar.gz#clan-cli" --refresh -- flakes create
+    nix run https://git.clan.lol/clan/clan-core/archive/main.tar.gz#clan-cli --refresh -- flakes create
     ```
 
 3. Enter a **name** in the prompt:
@@ -137,13 +137,12 @@ Description: None
 
 This confirms your setup is working correctly.
 
-You can now change the default name and tld by editing the `meta.name` and `meta.tld` fields in your `clan.nix` file.
+You can now change the default name by editing the `meta.name` field in your `clan.nix` file.
 
-```{.nix title="clan.nix" hl_lines="3 4"}
+```{.nix title="clan.nix" hl_lines="3"}
 {
   # Ensure this is unique among all clans you want to use.
   meta.name = "__CHANGE_ME__";
-  meta.tld = "changeme";
 
   # ...
   # elided

docs/site/getting-started/update-machines.md

@@ -10,11 +10,10 @@ and how to define a remote builder for your machine closures.
 Set the machine’s `targetHost` to the reachable IP address of the new machine.
 This eliminates the need to specify `--target-host` in CLI commands.
 
-```{.nix title="clan.nix" hl_lines="10"}
+```{.nix title="clan.nix" hl_lines="9"}
 {
 # Ensure this is unique among all clans you want to use.
 meta.name = "my-clan";
-meta.tld = "ccc";
 
 inventory.machines = {
     # Define machines here.

docs/site/guides/flake-parts.md

@@ -60,7 +60,6 @@ Configure Clan-wide settings and define machines. Here's an example `flake.nix`:
       # Define your Clan
       clan = {
         meta.name = ""; # Required and must be unique
-        meta.tld = ""; # Required and must be unique
 
         machines = {
           jon = {

docs/site/guides/networking/mesh-vpn.md

@@ -43,7 +43,6 @@ For the purpose of this guide we have two machines:
         inherit self;
 
         meta.name = "myclan";
-        meta.tld = "ccc";
 
         inventory.machines = {
           controller = {};

docs/site/guides/vars/sops/age-plugins.md

@@ -63,7 +63,6 @@ To use `age` plugins with Clan, you need to configure them in your `flake.nix` f
       inherit self;
 
       meta.name = "myclan";
-      meta.tld = "ccc";
 
       # Add YubiKey and FIDO2 HMAC plugins
       # Note: Plugins must be available in nixpkgs.

flake.lock

@@ -31,11 +31,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761899396,
-        "narHash": "sha256-XOpKBp6HLzzMCbzW50TEuXN35zN5WGQREC7n34DcNMM=",
+        "lastModified": 1760701190,
+        "narHash": "sha256-y7UhnWlER8r776JsySqsbTUh2Txf7K30smfHlqdaIQw=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "6f4cf5abbe318e4cd1e879506f6eeafd83f7b998",
+        "rev": "3a9450b26e69dcb6f8de6e2b07b3fc1c288d85f5",
         "type": "github"
       },
       "original": {
@@ -51,11 +51,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1762040540,
-        "narHash": "sha256-z5PlZ47j50VNF3R+IMS9LmzI5fYRGY/Z5O5tol1c9I4=",
+        "lastModified": 1760948891,
+        "narHash": "sha256-TmWcdiUUaWk8J4lpjzu4gCGxWY6/Ok7mOK4fIFfBuU4=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "0010412d62a25d959151790968765a70c436598b",
+        "rev": "864599284fc7c0ba6357ed89ed5e2cd5040f0c04",
         "type": "github"
       },
       "original": {
@@ -71,11 +71,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1762039661,
-        "narHash": "sha256-oM5BwAGE78IBLZn+AqxwH/saqwq3e926rNq5HmOulkc=",
+        "lastModified": 1760721282,
+        "narHash": "sha256-aAHphQbU9t/b2RRy2Eb8oMv+I08isXv2KUGFAFn7nCo=",
         "owner": "nix-darwin",
         "repo": "nix-darwin",
-        "rev": "c3c8c9f2a5ed43175ac4dc030308756620e6e4e4",
+        "rev": "c3211fcd0c56c11ff110d346d4487b18f7365168",
         "type": "github"
       },
       "original": {
@@ -99,11 +99,11 @@
     },
     "nixos-facter-modules": {
       "locked": {
-        "lastModified": 1761137276,
-        "narHash": "sha256-4lDjGnWRBLwqKQ4UWSUq6Mvxu9r8DSqCCydodW/Jsi8=",
+        "lastModified": 1756491981,
+        "narHash": "sha256-lXyDAWPw/UngVtQfgQ8/nrubs2r+waGEYIba5UX62+k=",
         "owner": "nix-community",
         "repo": "nixos-facter-modules",
-        "rev": "70bcd64225d167c7af9b475c4df7b5abba5c7de8",
+        "rev": "c1b29520945d3e148cd96618c8a0d1f850965d8c",
         "type": "github"
       },
       "original": {
@@ -146,11 +146,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1760998189,
-        "narHash": "sha256-ee2e1/AeGL5X8oy/HXsZQvZnae6XfEVdstGopKucYLY=",
+        "lastModified": 1760845571,
+        "narHash": "sha256-PwGzU3EOU65Ef1VvuNnVLie+l+P0g/fzf/PGUG82KbM=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "5a7d18b5c55642df5c432aadb757140edfeb70b3",
+        "rev": "9c9a9798be331ed3f4b2902933d7677d0659ee61",
         "type": "github"
       },
       "original": {
@@ -181,11 +181,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761311587,
-        "narHash": "sha256-Msq86cR5SjozQGCnC6H8C+0cD4rnx91BPltZ9KK613Y=",
+        "lastModified": 1760945191,
+        "narHash": "sha256-ZRVs8UqikBa4Ki3X4KCnMBtBW0ux1DaT35tgsnB1jM4=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "2eddae033e4e74bf581c2d1dfa101f9033dbd2dc",
+        "rev": "f56b1934f5f8fcab8deb5d38d42fd692632b47c2",
         "type": "github"
       },
       "original": {

flake.nix

@@ -68,7 +68,6 @@
       (
         { ... }:
         {
-          debug = true;
           clan = {
             meta.name = "clan-core";
             inventory = {
@@ -99,7 +98,6 @@
               ./lib/filter-clan-core/flake-module.nix
               ./lib/flake-module.nix
               ./lib/flake-parts/clan-nixos-test.nix
-              ./modules/flake-module.nix
               ./nixosModules/clanCore/vars/flake-module.nix
               ./nixosModules/flake-module.nix
               ./pkgs/clan-cli/clan_cli/tests/flake-module.nix

flakeModules/clan.nix

@@ -39,10 +39,44 @@ in
           };
           modules = [
             clan-core.modules.clan.default
+            {
+              checks.minNixpkgsVersion = {
+                assertion = lib.versionAtLeast nixpkgs.lib.version "25.11";
+                message = ''
+                  Nixpkgs version: ${nixpkgs.lib.version} is incompatible with clan-core. (>= 25.11 is recommended)
+                  ---
+                  Your version of 'nixpkgs' seems too old for clan-core.
+                  Please read: https://docs.clan.lol/guides/nixpkgs-flake-input
+
+                  You can ignore this check by setting:
+                  clan.checks.minNixpkgsVersion.ignore = true;
+                  ---
+                '';
+              };
+              # TODO: Pinpox
+              checks.conflictingPorts =
+                let
+                  conflicts = [ ];
+                in
+                {
+                  assertion = builtins.length conflicts == 0;
+                  message = ''
+                    The following endpoints have conflicting port assignments:
+                    ---
+                  '';
+                };
+            }
           ];
         };
-        # Important: !This logic needs to be kept in sync with lib.clan function!
-        apply = config: clan-core.lib.checkConfig config.checks config;
+        apply =
+          config:
+          lib.deepSeq (lib.mapAttrs (
+            id: check:
+            if check.ignore || check.assertion then
+              null
+            else
+              throw "clan.checks.${id} failed with message\n${check.message}"
+          ) config.checks) config;
       };
 
     # Mapped flake toplevel outputs

lib/clan/checkConfig.nix

@@ -1,19 +0,0 @@
-{ lib, ... }:
-/**
-  Function to assert clan configuration checks.
-
-  Arguments:
-
-  - 'checks' attribute of clan configuration
-  - Any: the returned configuration (can be anything, is just passed through)
-*/
-checks:
-lib.deepSeq (
-  lib.mapAttrs (
-    id: check:
-    if check.ignore || check.assertion then
-      null
-    else
-      throw "clan.checks.${id} failed with message\n${check.message}"
-  ) checks
-)

lib/clan/default.nix

@@ -33,23 +33,20 @@
 let
   nixpkgs = self.inputs.nixpkgs or clan-core.inputs.nixpkgs;
   nix-darwin = self.inputs.nix-darwin or clan-core.inputs.nix-darwin;
-  configuration = (
-    lib.evalModules {
-      class = "clan";
-      specialArgs = {
-        inherit
-          self
-          ;
-        inherit
-          nixpkgs
-          nix-darwin
-          ;
-      };
-      modules = [
-        clan-core.modules.clan.default
-        m
-      ];
-    }
-  );
 in
-clan-core.clanLib.checkConfig configuration.config.checks configuration
+lib.evalModules {
+  class = "clan";
+  specialArgs = {
+    inherit
+      self
+      ;
+    inherit
+      nixpkgs
+      nix-darwin
+      ;
+  };
+  modules = [
+    clan-core.modules.clan.default
+    m
+  ];
+}

lib/clanTest/flake-module.nix

@@ -137,12 +137,6 @@ in
           default = { };
           type = types.submoduleWith {
             specialArgs = {
-              self = throw ''
-                'self' is banned in the use of clan.services
-                Use 'exports' instead: https://docs.clan.lol/reference/options/clan_service/#exports
-                ---
-                If you really need to used 'self' here, that makes the module less portable
-              '';
               inherit (config.clanSettings)
                 clan-core
                 nixpkgs

lib/default.nix

@@ -16,12 +16,10 @@ lib.fix (
       */
       callLib = file: args: import file ({ inherit lib clanLib; } // args);
 
-      checkConfig = clanLib.callLib ./clan/checkConfig.nix { };
-
-      evalService = clanLib.callLib ./evalService.nix { };
+      evalService = clanLib.callLib ./modules/inventory/distributed-service/evalService.nix { };
       # ------------------------------------
       # ClanLib functions
-      inventory = clanLib.callLib ./inventory { };
+      inventory = clanLib.callLib ./modules/inventory { };
       test = clanLib.callLib ./test { };
       flake-inputs = clanLib.callLib ./flake-inputs.nix { };
       # Custom types
@@ -32,8 +30,6 @@ lib.fix (
       jsonschema = import ./jsonschema { inherit lib; };
       docs = import ./docs.nix { inherit lib; };
 
-      vars = import ./vars.nix { inherit lib; };
-
       # flakes
       flakes = clanLib.callLib ./flakes.nix { };
 

lib/flake-module.nix

@@ -10,11 +10,12 @@ in
 rec {
   # TODO: automatically generate this from the directory conventions
   imports = [
+    ./modules/flake-module.nix
     ./clanTest/flake-module.nix
     ./introspection/flake-module.nix
+    ./modules/inventory/flake-module.nix
     ./jsonschema/flake-module.nix
     ./types/flake-module.nix
-    ./inventory/flake-module.nix
   ];
   flake.clanLib =
     let
@@ -77,6 +78,9 @@ rec {
           ../lib
           (lib.fileset.fileFilter (file: file.name == "flake-module.nix") ../.)
           ../flakeModules
+          # ../../nixosModules/clanCore
+          # ../../machines
+          # ../../inventory.json
         ];
       };
     in
@@ -97,36 +101,6 @@ rec {
           touch $out
         '';
       };
-
-      # Run: nix-unit --extra-experimental-features flakes --flake .#legacyPackages.x86_64-linux.evalTests-build-clan
-      legacyPackages.evalTests-build-clan = import ./tests.nix {
-        inherit lib;
-        clan-core = self;
-      };
-      checks = {
-        eval-lib-build-clan = pkgs.runCommand "tests" { nativeBuildInputs = [ pkgs.nix-unit ]; } ''
-          export HOME="$(realpath .)"
-
-          nix-unit --eval-store "$HOME" \
-            --extra-experimental-features flakes \
-            --show-trace \
-            ${inputOverrides} \
-            --flake ${
-              self.filter {
-                include = [
-                  "flakeModules"
-                  "inventory.json"
-                  "lib"
-                  "machines"
-                  "nixosModules"
-                  "modules"
-                ];
-              }
-            }#legacyPackages.${system}.evalTests-build-clan
-
-          touch $out
-        '';
-      };
     };
 
 }

lib/modules/clan/default.nix

@@ -0,0 +1,12 @@
+{ clan-core }:
+{
+  _class = "clan";
+  _module.args = {
+    inherit clan-core;
+    inherit (clan-core) clanLib;
+  };
+  imports = [
+    ./module.nix
+    ./interface.nix
+  ];
+}

lib/modules/clan/flake-module.nix

@@ -0,0 +1,4 @@
+{ self, lib, ... }:
+{
+  flake.modules.clan.default = lib.modules.importApply ./default.nix { clan-core = self; };
+}

lib/modules/clan/interface.nix

@@ -120,6 +120,30 @@ in
       visible = false;
       type = types.deferredModule;
       default = {
+        options.endpoints = lib.mkOption {
+          type = types.attrsWith {
+            placeholder = "endpointName";
+            elemType = (
+              types.submodule {
+                options = {
+                  port = lib.mkOption {
+                    type = types.int;
+                    description = "The port the service is running on";
+                  };
+                  protocol = lib.mkOption {
+                    type = types.enum [
+                      "tcp"
+                      "udp"
+                    ];
+                    default = "tcp";
+                    description = "The protocol used to access the service";
+                  };
+                };
+              }
+            );
+          };
+          default = { };
+        };
         options.networking = lib.mkOption {
           default = null;
           type = lib.types.nullOr (
@@ -288,7 +312,7 @@ in
         Global information about the clan.
       '';
       type = types.deferredModuleWith {
-        staticModules = [ ../inventoryClass/meta.nix ];
+        staticModules = [ ../inventoryClass/meta-interface.nix ];
       };
       default = { };
     };

lib/modules/clan/module.nix

@@ -100,7 +100,7 @@ let
           _: machine:
           machine.extendModules {
             modules = [
-              (lib.modules.importApply ../../nixosModules/machineModules/overridePkgs.nix {
+              (lib.modules.importApply ../machineModules/overridePkgs.nix {
                 pkgs = pkgsFor.${system};
               })
             ];
@@ -167,9 +167,6 @@ in
           { ... }@args:
           let
             _class =
-              # _class was added in https://github.com/NixOS/nixpkgs/pull/395141
-              # Clan relies on it to determine which modules to load
-              # people need to use at least that version of nixpkgs
               args._class or (throw ''
                 Your version of nixpkgs is incompatible with the latest clan.
                 Please update nixpkgs input to the latest nixos-unstable or nixpkgs-unstable.
@@ -179,7 +176,7 @@ in
           in
           {
             imports = [
-              (lib.modules.importApply ../../nixosModules/machineModules/forName.nix {
+              (lib.modules.importApply ../machineModules/forName.nix {
                 inherit (config.inventory) meta;
                 inherit
                   name
@@ -219,44 +216,43 @@ in
     inherit nixosConfigurations;
     inherit darwinConfigurations;
 
+    exports = config.clanInternals.inventoryClass.distributedServices.servicesEval.config.exports;
+
     clanInternals = {
       inventoryClass =
         let
           flakeInputs = config.self.inputs;
-          # Compute the relative directory path
-          selfStr = toString config.self;
-          dirStr = toString directory;
-          relativeDirectory =
-            if selfStr == dirStr then
-              ""
-            else if lib.hasPrefix selfStr dirStr then
-              lib.removePrefix (selfStr + "/") dirStr
-            else
-              # This shouldn't happen in normal usage, but can occur when
-              # the flake is copied (e.g., in tests). Fall back to empty string.
-              "";
         in
         {
           _module.args = {
             inherit clanLib;
           };
           imports = [
-            ../inventoryClass/default.nix
+            ../inventoryClass/builder/default.nix
+            (lib.modules.importApply ../inventoryClass/service-list-from-inputs.nix {
+              inherit flakeInputs clanLib;
+            })
             {
-              inherit
-                inventory
-                directory
-                flakeInputs
-                relativeDirectory
-                ;
-              exportsModule = config.exportsModule;
+              inherit inventory directory;
             }
             (
-              { ... }:
+              let
+                clanConfig = config;
+              in
+              { config, ... }:
               {
                 staticModules = clan-core.clan.modules;
+
+                distributedServices = clanLib.inventory.mapInstances {
+                  inherit (clanConfig) inventory exportsModule;
+                  inherit flakeInputs directory;
+                  clanCoreModules = clan-core.clan.modules;
+                  prefix = [ "distributedServices" ];
+                };
+                machines = config.distributedServices.allMachines;
               }
             )
+            ../inventoryClass/inventory-introspection.nix
           ];
         };
 

lib/modules/clan/templates.nix

@@ -1,28 +1,3 @@
-/**
-  The templates submodule
-
-  'clan.templates'
-
-  Different kinds supported:
-
-  - clan templates: 'clan.templates.clan'
-  - disko templates: 'clan.templates.disko'
-  - machine templates: 'clan.templates.machine'
-
-  A template has the form:
-
-  ```nix
-  {
-    description: string; # short summary what the template contains
-    path: path; # path to the template
-  }
-  ```
-
-  The clan API copies the template from the given 'path'
-  into a target folder. For example,
-
-  `./machines/<machine-name>` for 'machine' templates.
-*/
 {
   lib,
   ...

lib/modules/dir_test.nix

@@ -2,7 +2,7 @@
   lib ? import <nixpkgs/lib>,
 }:
 let
-  clanLibOrig = (import ./. { inherit lib; }).__unfix__;
+  clanLibOrig = (import ./.. { inherit lib; }).__unfix__;
   clanLibWithFs =
     { virtual_fs }:
     lib.fix (
@@ -11,19 +11,19 @@ let
         let
           clan-core = {
             clanLib = final;
-            modules.clan.default = lib.modules.importApply ../modules/clan { inherit clan-core; };
+            modules.clan.default = lib.modules.importApply ./clan { inherit clan-core; };
 
             # Note: Can add other things to "clan-core"
             # ... Not needed for this test
           };
         in
         {
-          clan = import ./clan {
+          clan = import ../clan {
             inherit lib clan-core;
           };
 
           # Override clanLib.fs for unit-testing against a virtual filesystem
-          fs = import ./clanTest/virtual-fs.nix { inherit lib; } {
+          fs = import ../clanTest/virtual-fs.nix { inherit lib; } {
             inherit rootPath virtual_fs;
             # Example of a passthru
             # passthru = [
@@ -53,12 +53,7 @@ in
             };
           };
         }).clan
-          {
-            directory = rootPath;
-            self = {
-              inputs.nixpkgs.lib.version = "25.11";
-            };
-          };
+          { config.directory = rootPath; };
     in
     {
       inherit vclan;
@@ -99,12 +94,7 @@ in
             };
           };
         }).clan
-          {
-            directory = rootPath;
-            self = {
-              inputs.nixpkgs.lib.version = "25.11";
-            };
-          };
+          { config.directory = rootPath; };
     in
     {
       inherit vclan;

lib/modules/eval-docs.nix

@@ -1,24 +1,19 @@
 {
   pkgs,
   lib,
-  clanModule,
-  clanLib,
   clan-core,
 }:
 let
   eval = lib.evalModules {
     modules = [
-      clanModule
+      clan-core.modules.clan.default
     ];
-    specialArgs = {
-      self = clan-core;
-    };
   };
 
   evalDocs = pkgs.nixosOptionsDoc {
     options = eval.options;
     warningsAreErrors = false;
-    transformOptions = clanLib.docs.stripStorePathsFromDeclarations;
+    transformOptions = clan-core.clanLib.docs.stripStorePathsFromDeclarations;
   };
 in
 {

lib/modules/flake-module.nix

@@ -0,0 +1,58 @@
+{
+  self,
+  inputs,
+  ...
+}:
+let
+  inputOverrides = self.clanLib.flake-inputs.getOverrides inputs;
+in
+{
+  imports = [
+    ./clan/flake-module.nix
+  ];
+  perSystem =
+    {
+      pkgs,
+      lib,
+      system,
+      ...
+    }:
+    let
+      jsonDocs = import ./eval-docs.nix {
+        inherit pkgs lib;
+        clan-core = self;
+      };
+    in
+    {
+      legacyPackages.clan-options = jsonDocs.optionsJSON;
+
+      # Run: nix-unit --extra-experimental-features flakes --flake .#legacyPackages.x86_64-linux.evalTests-build-clan
+      legacyPackages.evalTests-build-clan = import ./tests.nix {
+        inherit lib;
+        clan-core = self;
+      };
+      checks = {
+        eval-lib-build-clan = pkgs.runCommand "tests" { nativeBuildInputs = [ pkgs.nix-unit ]; } ''
+          export HOME="$(realpath .)"
+
+          nix-unit --eval-store "$HOME" \
+            --extra-experimental-features flakes \
+            --show-trace \
+            ${inputOverrides} \
+            --flake ${
+              self.filter {
+                include = [
+                  "flakeModules"
+                  "inventory.json"
+                  "lib"
+                  "machines"
+                  "nixosModules"
+                ];
+              }
+            }#legacyPackages.${system}.evalTests-build-clan
+
+          touch $out
+        '';
+      };
+    };
+}

lib/modules/inventory/default.nix

@@ -2,11 +2,15 @@
   lib,
   clanLib,
 }:
+let
+  services = clanLib.callLib ./distributed-service/inventory-adapter.nix { };
+in
 {
+  inherit (services) mapInstances;
   inventoryModule = {
     _file = "clanLib.inventory.module";
     imports = [
-      ../../modules/inventoryClass/inventory.nix
+      ../inventoryClass/inventory.nix
     ];
     _module.args = { inherit clanLib; };
   };

lib/modules/inventory/distributed-service/all-services-wrapper.nix

@@ -28,9 +28,9 @@ in
         elemType = submoduleWith {
           class = "clan.service";
           specialArgs = {
+            exports = config.exports;
             directory = directory;
             clanLib = specialArgs.clanLib;
-            exports = config.exports;
           };
           modules = [
             (

lib/modules/inventory/distributed-service/evalService.nix

@@ -17,9 +17,9 @@ lib.evalModules {
   specialArgs._ctx = prefix;
   modules = [
     # Base module
-    ./inventory/distributed-service/service-module.nix
+    ./service-module.nix
     # Feature modules
-    (lib.modules.importApply ./inventory/distributed-service/api-feature.nix {
+    (lib.modules.importApply ./api-feature.nix {
       inherit clanLib prefix;
     })
   ]

lib/modules/inventory/distributed-service/flake-module.nix

@@ -13,18 +13,16 @@ in
     let
       # Common filtered source for inventory tests
       inventoryTestsSrc = lib.fileset.toSource {
-        root = ../../..;
+        root = ../../../..;
         fileset = lib.fileset.unions [
-          ../../../flake.nix
-          ../../../flake.lock
-          (lib.fileset.fileFilter (file: file.name == "flake-module.nix") ../../..)
-          ../../../flakeModules
-          ../../../lib
-          ../../../nixosModules/clanCore
-          ../../../nixosModules/machineModules
-          ../../../machines
-          ../../../inventory.json
-          ../../../modules
+          ../../../../flake.nix
+          ../../../../flake.lock
+          (lib.fileset.fileFilter (file: file.name == "flake-module.nix") ../../../..)
+          ../../../../flakeModules
+          ../../../../lib
+          ../../../../nixosModules/clanCore
+          ../../../../machines
+          ../../../../inventory.json
         ];
       };
     in

lib/modules/inventory/distributed-service/inventory-adapter.nix

@@ -0,0 +1,171 @@
+# Adapter function between the inventory.instances and the clan.service module
+#
+# Data flow:
+# - inventory.instances -> Adapter -> clan.service module -> Service Resources (i.e. NixosModules per Machine, Vars per Service, etc.)
+#
+# What this file does:
+#
+# - Resolves the [Module] to an actual module-path and imports it.
+# - Groups together all the same modules into a single import and creates all instances for it.
+# - Resolves the inventory tags into machines. Tags don't exist at the service level.
+#   Also combines the settings for 'machines' and 'tags'.
+{
+  lib,
+  clanLib,
+  ...
+}:
+{
+  mapInstances =
+    {
+      # This is used to resolve the module imports from 'flake.inputs'
+      flakeInputs,
+      # The clan inventory
+      inventory,
+      directory,
+      clanCoreModules,
+      prefix ? [ ],
+      exportsModule,
+    }:
+    let
+      # machineHasTag = machineName: tagName: lib.elem tagName inventory.machines.${machineName}.tags;
+
+      # map the instances into the module
+      importedModuleWithInstances = lib.mapAttrs (
+        instanceName: instance:
+        let
+          resolvedModule = clanLib.resolveModule {
+            moduleSpec = instance.module;
+            inherit flakeInputs clanCoreModules;
+          };
+
+          # Every instance includes machines via roles
+          # :: { client :: ... }
+          instanceRoles = lib.mapAttrs (
+            roleName: role:
+            let
+              resolvedMachines = clanLib.inventory.resolveTags {
+                members = {
+                  # Explicit members
+                  machines = lib.attrNames role.machines;
+                  # Resolved Members
+                  tags = lib.attrNames role.tags;
+                };
+                inherit (inventory) machines;
+                inherit instanceName roleName;
+              };
+            in
+            # instances.<instanceName>.roles.<roleName> =
+            # Remove "tags", they are resolved into "machines"
+            (removeAttrs role [ "tags" ])
+            // {
+              machines = lib.genAttrs resolvedMachines.machines (
+                machineName:
+                let
+                  machineSettings = instance.roles.${roleName}.machines.${machineName}.settings or { };
+                in
+                # TODO: tag settings
+                # Wait for this feature until option introspection for 'settings' is done.
+                # This might get too complex to handle otherwise.
+                # settingsViaTags = lib.filterAttrs (
+                #   tagName: _: machineHasTag machineName tagName
+                # ) instance.roles.${roleName}.tags;
+                {
+                  # TODO: Do we want to wrap settings with
+                  # setDefaultModuleLocation "inventory.instances.${instanceName}.roles.${roleName}.tags.${tagName}";
+                  settings = {
+                    imports = [
+                      machineSettings
+                    ]; # ++ lib.attrValues (lib.mapAttrs (_tagName: v: v.settings) settingsViaTags);
+                  };
+                }
+              );
+            }
+          ) instance.roles;
+        in
+        {
+          inherit (instance) module;
+          inherit resolvedModule instanceRoles;
+        }
+      ) inventory.instances or { };
+
+      # Group the instances by the module they resolve to
+      # This is necessary to evaluate the module in a single pass
+      # :: { <module.input>_<module.name> :: [ { name, value } ] }
+      # Since 'perMachine' needs access to all the instances we should include them as a whole
+      grouped = lib.foldlAttrs (
+        acc: instanceName: instance:
+        let
+          inputName = if instance.module.input == null then "<clan-core>" else instance.module.input;
+          id = inputName + "-" + instance.module.name;
+        in
+        acc
+        // {
+          ${id} = acc.${id} or [ ] ++ [
+            {
+              inherit instanceName instance;
+            }
+          ];
+        }
+      ) { } importedModuleWithInstances;
+
+      # servicesEval.config.mappedServices.self-A.result.final.jon.nixosModule
+      allMachines = lib.mapAttrs (machineName: _: {
+        # This is the list of nixosModules for each machine
+        machineImports = lib.foldlAttrs (
+          acc: _module_ident: serviceModule:
+          acc ++ [ serviceModule.result.final.${machineName}.nixosModule or { } ]
+        ) [ ] servicesEval.config.mappedServices;
+      }) inventory.machines or { };
+
+      evalServices =
+        { modules, prefix }:
+        lib.evalModules {
+          class = "clan";
+          specialArgs = {
+            inherit clanLib;
+            _ctx = prefix;
+          };
+          modules = [
+            (import ./all-services-wrapper.nix { inherit directory; })
+          ]
+          ++ modules;
+        };
+
+      servicesEval = evalServices {
+        inherit prefix;
+        modules = [
+          {
+            inherit exportsModule;
+            mappedServices = lib.mapAttrs (_module_ident: instances: {
+              imports = [
+                # Import the resolved module.
+                # i.e. clan.modules.admin
+                {
+                  options.module = lib.mkOption {
+                    type = lib.types.raw;
+                    default = (builtins.head instances).instance.module;
+                  };
+                }
+                (builtins.head instances).instance.resolvedModule
+              ] # Include all the instances that correlate to the resolved module
+              ++ (builtins.map (v: {
+                instances.${v.instanceName}.roles = v.instance.instanceRoles;
+              }) instances);
+            }) grouped;
+          }
+        ];
+      };
+      importedModulesEvaluated = servicesEval.config.mappedServices;
+
+    in
+    {
+      inherit
+        servicesEval
+        importedModuleWithInstances
+        # Exposed for testing
+        grouped
+        allMachines
+        importedModulesEvaluated
+        ;
+    };
+}

lib/modules/inventory/distributed-service/service-module.nix

@@ -81,7 +81,6 @@ let
   applySettings =
     instanceName: instance:
     lib.mapAttrs (roleName: role: {
-      settings = config.instances.${instanceName}.roles.${roleName}.finalSettings.config;
       machines = lib.mapAttrs (machineName: _v: {
         settings =
           config.instances.${instanceName}.roles.${roleName}.machines.${machineName}.finalSettings.config;
@@ -159,29 +158,6 @@ in
                         (
                           { name, ... }@role:
                           {
-                            options.finalSettings = mkOption {
-                              default = evalMachineSettings instance.name role.name null role.config.settings { };
-                              type = types.raw;
-                              description = ''
-                                Final evaluated settings of the curent-machine
-
-                                This contains the merged and evaluated settings of the role interface,
-                                the role settings and the machine settings.
-
-                                Type: 'configuration' as returned by 'lib.evalModules'
-                              '';
-                              apply = lib.warn ''
-                                === WANRING ===
-                                'roles.<roleName>.settings' do not contain machine specific settings.
-
-                                Prefer `machines.<machineName>.settings` instead. (i.e `perInstance: roles.<roleName>.machines.<machineName>.settings`)
-
-                                If you have a use-case that requires access to the original role settings without machine overrides.
-                                Contact us via matrix (https://matrix.to/#/#clan:clan.lol) or file an issue: https://git.clan.lol
-
-                                This feature will be removed in the next release
-                              '';
-                            };
                             # instances.{instanceName}.roles.{roleName}.machines
                             options.machines = mkOption {
                               description = ''
@@ -240,7 +216,7 @@ in
 
                             options.extraModules = lib.mkOption {
                               default = [ ];
-                              type = types.listOf types.deferredModule;
+                              type = types.listOf (types.either types.deferredModule types.str);
                             };
                           }
                         )
@@ -507,9 +483,6 @@ in
                           type = types.deferredModule;
                           default = { };
                           description = ''
-                            !!! Danger "Experimental Feature"
-                                This feature is experimental and will change in the future.
-
                             export modules defined in 'perInstance'
                             mapped to their instance name
 
@@ -638,9 +611,6 @@ in
               type = types.deferredModule;
               default = { };
               description = ''
-                !!! Danger "Experimental Feature"
-                    This feature is experimental and will change in the future.
-
                 export modules defined in 'perMachine'
                 mapped to their machine name
 
@@ -742,9 +712,6 @@ in
 
     exports = mkOption {
       description = ''
-        !!! Danger "Experimental Feature"
-            This feature is experimental and will change in the future.
-
         This services exports.
         Gets merged with all other services exports.
 
@@ -883,11 +850,7 @@ in
                   instanceRes.nixosModule
                 ]
                 ++ (map (
-                  s:
-                  if builtins.typeOf s == "string" then
-                    lib.warn "String types for 'extraModules' will be deprecated - ${s}" "${directory}/${s}"
-                  else
-                    lib.setDefaultModuleLocation "via inventory.instances.${instanceName}.roles.${roleName}" s
+                  s: if builtins.typeOf s == "string" then "${directory}/${s}" else s
                 ) instanceCfg.roles.${roleName}.extraModules);
               };
             }

lib/modules/inventory/distributed-service/tests/default.nix

@@ -4,53 +4,63 @@
   ...
 }:
 let
+  inherit (lib)
+    evalModules
+    ;
 
-  flakeInputsFixture = {
-    upstream.clan.modules = {
-      uzzi = {
-        _class = "clan.service";
-        manifest = {
-          name = "uzzi-from-upstream";
-        };
-      };
-    };
-  };
+  evalInventory =
+    m:
+    (evalModules {
+      # Static modules
+      modules = [
+        clanLib.inventory.inventoryModule
+        {
+          _file = "test file";
+          tags.all = [ ];
+          tags.nixos = [ ];
+          tags.darwin = [ ];
+        }
+        {
+          modules.test = { };
+        }
+        m
+      ];
+    }).config;
 
-  createTestClan =
-    testClan:
+  callInventoryAdapter =
+    inventoryModule:
     let
-      res = clanLib.clan ({
-        # Static / mocked
-        specialArgs = {
-          clan-core = {
-            clan.modules = { };
+      inventory = evalInventory inventoryModule;
+      flakeInputsFixture = {
+        self.clan.modules = inventoryModule.modules or { };
+        # Example upstream module
+        upstream.clan.modules = {
+          uzzi = {
+            _class = "clan.service";
+            manifest = {
+              name = "uzzi-from-upstream";
+            };
           };
         };
-        self.inputs = flakeInputsFixture // {
-          self.clan = res.config;
-        };
-        directory = ./.;
-        exportsModule = { };
-
-        imports = [
-          testClan
-        ];
-      });
+      };
     in
-    res;
-
+    clanLib.inventory.mapInstances {
+      directory = ./.;
+      clanCoreModules = { };
+      flakeInputs = flakeInputsFixture;
+      inherit inventory;
+      exportsModule = { };
+    };
 in
 {
   extraModules = import ./extraModules.nix { inherit clanLib; };
   exports = import ./exports.nix { inherit lib clanLib; };
-  settings = import ./settings.nix { inherit lib createTestClan; };
-  specialArgs = import ./specialArgs.nix { inherit lib createTestClan; };
-  resolve_module_spec = import ./import_module_spec.nix {
-    inherit lib createTestClan;
-  };
+  settings = import ./settings.nix { inherit lib callInventoryAdapter; };
+  specialArgs = import ./specialArgs.nix { inherit lib callInventoryAdapter; };
+  resolve_module_spec = import ./import_module_spec.nix { inherit lib callInventoryAdapter; };
   test_simple =
     let
-      res = createTestClan {
+      res = callInventoryAdapter {
         # Authored module
         # A minimal module looks like this
         # It isn't exactly doing anything but it's a valid module that produces an output
@@ -61,7 +71,7 @@ in
           };
         };
         # User config
-        inventory.instances."instance_foo" = {
+        instances."instance_foo" = {
           module = {
             name = "simple-module";
           };
@@ -71,7 +81,7 @@ in
     {
       # Test that the module is mapped into the output
       # We might change the attribute name in the future
-      expr = res.config._services.mappedServices ? "<clan-core>-simple-module";
+      expr = res.importedModulesEvaluated ? "<clan-core>-simple-module";
       expected = true;
       inherit res;
     };
@@ -82,7 +92,7 @@ in
   # All instances should be included within one evaluation to make all of them available
   test_module_grouping =
     let
-      res = createTestClan {
+      res = callInventoryAdapter {
         # Authored module
         # A minimal module looks like this
         # It isn't exactly doing anything but it's a valid module that produces an output
@@ -102,19 +112,18 @@ in
 
           perMachine = { }: { };
         };
-
         # User config
-        inventory.instances."instance_foo" = {
+        instances."instance_foo" = {
           module = {
             name = "A";
           };
         };
-        inventory.instances."instance_bar" = {
+        instances."instance_bar" = {
           module = {
             name = "B";
           };
         };
-        inventory.instances."instance_baz" = {
+        instances."instance_baz" = {
           module = {
             name = "A";
           };
@@ -124,16 +133,16 @@ in
     {
       # Test that the module is mapped into the output
       # We might change the attribute name in the future
-      expr = lib.attrNames res.config._services.mappedServices;
-      expected = [
-        "<clan-core>-A"
-        "<clan-core>-B"
-      ];
+      expr = lib.mapAttrs (_n: v: builtins.length v) res.grouped;
+      expected = {
+        "<clan-core>-A" = 2;
+        "<clan-core>-B" = 1;
+      };
     };
 
   test_creates_all_instances =
     let
-      res = createTestClan {
+      res = callInventoryAdapter {
         # Authored module
         # A minimal module looks like this
         # It isn't exactly doing anything but it's a valid module that produces an output
@@ -145,24 +154,22 @@ in
 
           perMachine = { }: { };
         };
-        inventory = {
-          instances."instance_foo" = {
-            module = {
-              name = "A";
-              input = "self";
-            };
+        instances."instance_foo" = {
+          module = {
+            name = "A";
+            input = "self";
           };
-          instances."instance_bar" = {
-            module = {
-              name = "A";
-              input = "self";
-            };
+        };
+        instances."instance_bar" = {
+          module = {
+            name = "A";
+            input = "self";
           };
-          instances."instance_zaza" = {
-            module = {
-              name = "B";
-              input = null;
-            };
+        };
+        instances."instance_zaza" = {
+          module = {
+            name = "B";
+            input = null;
           };
         };
       };
@@ -170,7 +177,7 @@ in
     {
       # Test that the module is mapped into the output
       # We might change the attribute name in the future
-      expr = lib.attrNames res.config._services.mappedServices.self-A.instances;
+      expr = lib.attrNames res.importedModulesEvaluated.self-A.instances;
       expected = [
         "instance_bar"
         "instance_foo"
@@ -180,7 +187,7 @@ in
   # Membership via roles
   test_add_machines_directly =
     let
-      res = createTestClan {
+      res = callInventoryAdapter {
         # Authored module
         # A minimal module looks like this
         # It isn't exactly doing anything but it's a valid module that produces an output
@@ -195,40 +202,38 @@ in
 
           # perMachine = {}: {};
         };
-        inventory = {
-          machines = {
-            jon = { };
-            sara = { };
-            hxi = { };
+        machines = {
+          jon = { };
+          sara = { };
+          hxi = { };
+        };
+        instances."instance_foo" = {
+          module = {
+            name = "A";
+            input = "self";
           };
-          instances."instance_foo" = {
-            module = {
-              name = "A";
-              input = "self";
-            };
-            roles.peer.machines.jon = { };
+          roles.peer.machines.jon = { };
+        };
+        instances."instance_bar" = {
+          module = {
+            name = "A";
+            input = "self";
           };
-          instances."instance_bar" = {
-            module = {
-              name = "A";
-              input = "self";
-            };
-            roles.peer.machines.sara = { };
-          };
-          instances."instance_zaza" = {
-            module = {
-              name = "B";
-              input = null;
-            };
-            roles.peer.tags.all = { };
+          roles.peer.machines.sara = { };
+        };
+        instances."instance_zaza" = {
+          module = {
+            name = "B";
+            input = null;
           };
+          roles.peer.tags.all = { };
         };
       };
     in
     {
       # Test that the module is mapped into the output
       # We might change the attribute name in the future
-      expr = lib.attrNames res.config._services.mappedServices.self-A.result.allMachines;
+      expr = lib.attrNames res.importedModulesEvaluated.self-A.result.allMachines;
       expected = [
         "jon"
         "sara"
@@ -238,7 +243,7 @@ in
   # Membership via tags
   test_add_machines_via_tags =
     let
-      res = createTestClan {
+      res = callInventoryAdapter {
         # Authored module
         # A minimal module looks like this
         # It isn't exactly doing anything but it's a valid module that produces an output
@@ -252,37 +257,35 @@ in
 
           # perMachine = {}: {};
         };
-        inventory = {
-          machines = {
-            jon = {
-              tags = [ "foo" ];
-            };
-            sara = {
-              tags = [ "foo" ];
-            };
-            hxi = { };
+        machines = {
+          jon = {
+            tags = [ "foo" ];
           };
-          instances."instance_foo" = {
-            module = {
-              name = "A";
-              input = "self";
-            };
-            roles.peer.tags.foo = { };
+          sara = {
+            tags = [ "foo" ];
           };
-          instances."instance_zaza" = {
-            module = {
-              name = "B";
-              input = null;
-            };
-            roles.peer.tags.all = { };
+          hxi = { };
+        };
+        instances."instance_foo" = {
+          module = {
+            name = "A";
+            input = "self";
           };
+          roles.peer.tags.foo = { };
+        };
+        instances."instance_zaza" = {
+          module = {
+            name = "B";
+            input = null;
+          };
+          roles.peer.tags.all = { };
         };
       };
     in
     {
       # Test that the module is mapped into the output
       # We might change the attribute name in the future
-      expr = lib.attrNames res.config._services.mappedServices.self-A.result.allMachines;
+      expr = lib.attrNames res.importedModulesEvaluated.self-A.result.allMachines;
       expected = [
         "jon"
         "sara"
@@ -290,9 +293,6 @@ in
     };
 
   machine_imports = import ./machine_imports.nix { inherit lib clanLib; };
-  per_machine_args = import ./per_machine_args.nix { inherit lib createTestClan; };
-  per_instance_args = import ./per_instance_args.nix {
-    inherit lib;
-    callInventoryAdapter = createTestClan;
-  };
+  per_machine_args = import ./per_machine_args.nix { inherit lib callInventoryAdapter; };
+  per_instance_args = import ./per_instance_args.nix { inherit lib callInventoryAdapter; };
 }

lib/modules/inventory/distributed-service/tests/import_module_spec.nix

@@ -1,4 +1,4 @@
-{ createTestClan, ... }:
+{ callInventoryAdapter, ... }:
 let
   # Authored module
   # A minimal module looks like this
@@ -23,13 +23,10 @@ let
 
   resolve =
     spec:
-    createTestClan {
-      inherit modules;
-      inventory = {
-        inherit machines;
-        instances."instance_foo" = {
-          module = spec;
-        };
+    callInventoryAdapter {
+      inherit modules machines;
+      instances."instance_foo" = {
+        module = spec;
       };
     };
 in
@@ -39,16 +36,25 @@ in
       (resolve {
         name = "A";
         input = "self";
-      }).config._services.mappedServices.self-A.manifest.name;
-    expected = "network";
+      }).importedModuleWithInstances.instance_foo.resolvedModule;
+    expected = {
+      _class = "clan.service";
+      manifest = {
+        name = "network";
+      };
+    };
   };
   test_import_remote_module_by_name = {
     expr =
       (resolve {
         name = "uzzi";
         input = "upstream";
-      }).config._services.mappedServices.upstream-uzzi.manifest.name;
-    expected = "uzzi-from-upstream";
-
+      }).importedModuleWithInstances.instance_foo.resolvedModule;
+    expected = {
+      _class = "clan.service";
+      manifest = {
+        name = "uzzi-from-upstream";
+      };
+    };
   };
 }

lib/modules/inventory/distributed-service/tests/per_instance_args.nix

@@ -58,43 +58,39 @@ let
     sara = { };
   };
   res = callInventoryAdapter {
-    inherit modules;
-
-    inventory = {
-      inherit machines;
-      instances."instance_foo" = {
-        module = {
-          name = "A";
-          input = "self";
-        };
-        roles.peer.machines.jon = {
-          settings.timeout = lib.mkForce "foo-peer-jon";
-        };
-        roles.peer = {
-          settings.timeout = "foo-peer";
-        };
-        roles.controller.machines.jon = { };
+    inherit modules machines;
+    instances."instance_foo" = {
+      module = {
+        name = "A";
+        input = "self";
       };
-      instances."instance_bar" = {
-        module = {
-          name = "A";
-          input = "self";
-        };
-        roles.peer.machines.jon = {
-          settings.timeout = "bar-peer-jon";
-        };
+      roles.peer.machines.jon = {
+        settings.timeout = lib.mkForce "foo-peer-jon";
       };
-      # TODO: move this into a seperate test.
-      # Seperate out the check that this module is never imported
-      # import the module "B" (undefined)
-      # All machines have this instance
-      instances."instance_zaza" = {
-        module = {
-          name = "B";
-          input = null;
-        };
-        roles.peer.tags.all = { };
+      roles.peer = {
+        settings.timeout = "foo-peer";
       };
+      roles.controller.machines.jon = { };
+    };
+    instances."instance_bar" = {
+      module = {
+        name = "A";
+        input = "self";
+      };
+      roles.peer.machines.jon = {
+        settings.timeout = "bar-peer-jon";
+      };
+    };
+    # TODO: move this into a seperate test.
+    # Seperate out the check that this module is never imported
+    # import the module "B" (undefined)
+    # All machines have this instance
+    instances."instance_zaza" = {
+      module = {
+        name = "B";
+        input = null;
+      };
+      roles.peer.tags.all = { };
     };
   };
 
@@ -109,10 +105,9 @@ in
 {
   # settings should evaluate
   test_per_instance_arguments = {
-    inherit res;
     expr = {
       instanceName =
-        res.config._services.mappedServices.self-A.result.allRoles.peer.allInstances."instance_foo".allMachines.jon.passthru.instanceName;
+        res.importedModulesEvaluated.self-A.result.allRoles.peer.allInstances."instance_foo".allMachines.jon.passthru.instanceName;
 
       # settings are specific.
       # Below we access:
@@ -120,11 +115,11 @@ in
       # roles = peer
       # machines = jon
       settings =
-        res.config._services.mappedServices.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.settings;
+        res.importedModulesEvaluated.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.settings;
       machine =
-        res.config._services.mappedServices.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.machine;
+        res.importedModulesEvaluated.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.machine;
       roles =
-        res.config._services.mappedServices.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.roles;
+        res.importedModulesEvaluated.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.roles;
     };
     expected = {
       instanceName = "instance_foo";
@@ -142,7 +137,6 @@ in
               settings = { };
             };
           };
-          settings = { };
         };
         peer = {
           machines = {
@@ -152,9 +146,6 @@ in
               };
             };
           };
-          settings = {
-            timeout = "foo-peer";
-          };
         };
       };
       settings = {
@@ -165,9 +156,9 @@ in
 
   # TODO: Cannot be tested like this anymore
   test_per_instance_settings_vendoring = {
-    x = res.config._services.mappedServices.self-A;
+    x = res.importedModulesEvaluated.self-A;
     expr =
-      res.config._services.mappedServices.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.vendoredSettings;
+      res.importedModulesEvaluated.self-A.result.allRoles.peer.allInstances.instance_foo.allMachines.jon.passthru.vendoredSettings;
     expected = {
       timeout = "config.thing";
     };

lib/modules/inventory/distributed-service/tests/per_machine_args.nix

@@ -1,4 +1,4 @@
-{ lib, createTestClan }:
+{ lib, callInventoryAdapter }:
 let
   # Authored module
   # A minimal module looks like this
@@ -39,40 +39,36 @@ let
     jon = { };
     sara = { };
   };
-  res = createTestClan {
-    inherit modules;
-    inventory = {
-
-      inherit machines;
-      instances."instance_foo" = {
-        module = {
-          name = "A";
-          input = "self";
-        };
-        roles.peer.machines.jon = {
-          settings.timeout = lib.mkForce "foo-peer-jon";
-        };
-        roles.peer = {
-          settings.timeout = "foo-peer";
-        };
+  res = callInventoryAdapter {
+    inherit modules machines;
+    instances."instance_foo" = {
+      module = {
+        name = "A";
+        input = "self";
       };
-      instances."instance_bar" = {
-        module = {
-          name = "A";
-          input = "self";
-        };
-        roles.peer.machines.jon = {
-          settings.timeout = "bar-peer-jon";
-        };
+      roles.peer.machines.jon = {
+        settings.timeout = lib.mkForce "foo-peer-jon";
       };
-      instances."instance_zaza" = {
-        module = {
-          name = "B";
-          input = null;
-        };
-        roles.peer.tags.all = { };
+      roles.peer = {
+        settings.timeout = "foo-peer";
       };
     };
+    instances."instance_bar" = {
+      module = {
+        name = "A";
+        input = "self";
+      };
+      roles.peer.machines.jon = {
+        settings.timeout = "bar-peer-jon";
+      };
+    };
+    instances."instance_zaza" = {
+      module = {
+        name = "B";
+        input = null;
+      };
+      roles.peer.tags.all = { };
+    };
   };
 in
 
@@ -83,7 +79,7 @@ in
     inherit res;
     expr = {
       hasMachineSettings =
-        res.config._services.mappedServices.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer.machines.jon
+        res.importedModulesEvaluated.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer.machines.jon
         ? settings;
 
       # settings are specific.
@@ -92,10 +88,10 @@ in
       # roles = peer
       # machines = jon
       specificMachineSettings =
-        res.config._services.mappedServices.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer.machines.jon.settings;
+        res.importedModulesEvaluated.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer.machines.jon.settings;
 
       hasRoleSettings =
-        res.config._services.mappedServices.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer
+        res.importedModulesEvaluated.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer
         ? settings;
 
       # settings are specific.
@@ -104,25 +100,20 @@ in
       # roles = peer
       # machines = *
       specificRoleSettings =
-        res.config._services.mappedServices.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer;
+        res.importedModulesEvaluated.self-A.result.allMachines.jon.passthru.instances.instance_foo.roles.peer;
     };
-    expected = {
+    expected = rec {
       hasMachineSettings = true;
-      hasRoleSettings = true;
+      hasRoleSettings = false;
       specificMachineSettings = {
         timeout = "foo-peer-jon";
       };
       specificRoleSettings = {
         machines = {
           jon = {
-            settings = {
-              timeout = "foo-peer-jon";
-            };
+            settings = specificMachineSettings;
           };
         };
-        settings = {
-          timeout = "foo-peer";
-        };
       };
     };
   };

lib/modules/inventory/distributed-service/tests/settings.nix

@@ -1,6 +1,6 @@
-{ createTestClan, lib, ... }:
+{ callInventoryAdapter, lib, ... }:
 let
-  res = createTestClan {
+  res = callInventoryAdapter {
     modules."A" = {
       _class = "clan.service";
       manifest = {
@@ -21,31 +21,28 @@ let
           };
         };
     };
-    inventory = {
-
-      machines = {
-        jon = { };
-        sara = { };
+    machines = {
+      jon = { };
+      sara = { };
+    };
+    instances."instance_foo" = {
+      module = {
+        name = "A";
+        input = "self";
       };
-      instances."instance_foo" = {
-        module = {
-          name = "A";
-          input = "self";
-        };
-        # Settings for both jon and sara
-        roles.peer.settings = {
-          timeout = 40;
-        };
-        # Jon overrides timeout
-        roles.peer.machines.jon = {
-          settings.timeout = lib.mkForce 42;
-        };
-        roles.peer.machines.sara = { };
+      # Settings for both jon and sara
+      roles.peer.settings = {
+        timeout = 40;
       };
+      # Jon overrides timeout
+      roles.peer.machines.jon = {
+        settings.timeout = lib.mkForce 42;
+      };
+      roles.peer.machines.sara = { };
     };
   };
 
-  config = res.config._services.mappedServices.self-A;
+  config = res.servicesEval.config.mappedServices.self-A;
 
   #
   applySettings =

lib/modules/inventory/distributed-service/tests/specialArgs.nix

@@ -1,6 +1,6 @@
-{ createTestClan, lib, ... }:
+{ callInventoryAdapter, lib, ... }:
 let
-  res = createTestClan {
+  res = callInventoryAdapter {
     modules."A" = m: {
       _class = "clan.service";
       config = {
@@ -14,21 +14,19 @@ let
         default = m;
       };
     };
-    inventory = {
-      machines = {
-        jon = { };
-      };
-      instances."instance_foo" = {
-        module = {
-          name = "A";
-          input = "self";
-        };
-        roles.peer.machines.jon = { };
+    machines = {
+      jon = { };
+    };
+    instances."instance_foo" = {
+      module = {
+        name = "A";
+        input = "self";
       };
+      roles.peer.machines.jon = { };
     };
   };
 
-  specialArgs = lib.attrNames res.config._services.mappedServices.self-A.test.specialArgs;
+  specialArgs = lib.attrNames res.servicesEval.config.mappedServices.self-A.test.specialArgs;
 in
 {
   test_simple = {

lib/modules/inventoryClass/builder/default.nix

@@ -0,0 +1,5 @@
+{
+  imports = [
+    ./interface.nix
+  ];
+}

lib/modules/inventoryClass/builder/interface.nix

@@ -0,0 +1,28 @@
+{ lib, ... }:
+let
+  inherit (lib) types mkOption;
+  submodule = m: types.submoduleWith { modules = [ m ]; };
+
+in
+{
+  options = {
+    directory = mkOption {
+      type = types.path;
+    };
+    distributedServices = mkOption {
+      type = types.raw;
+    };
+    inventory = mkOption {
+      type = types.raw;
+    };
+    machines = mkOption {
+      type = types.attrsOf (submodule ({
+        options = {
+          machineImports = mkOption {
+            type = types.listOf types.raw;
+          };
+        };
+      }));
+    };
+  };
+}

lib/modules/inventoryClass/inventory-introspection.nix

@@ -0,0 +1,20 @@
+{
+  config,
+  lib,
+  clanLib,
+  ...
+}:
+{
+  options.introspection = lib.mkOption {
+    readOnly = true;
+    # TODO: use options.inventory instead of the evaluate config attribute
+    default =
+      builtins.removeAttrs (clanLib.introspection.getPrios { options = config.inventory.options; })
+        # tags are freeformType which is not supported yet.
+        # services is removed and throws an error if accessed.
+        [
+          "tags"
+          "services"
+        ];
+  };
+}

lib/modules/inventoryClass/inventory.nix

@@ -115,7 +115,7 @@ in
     meta = lib.mkOption {
       type = lib.types.submoduleWith {
         modules = [
-          ./meta.nix
+          ./meta-interface.nix
         ];
       };
     };
@@ -167,7 +167,7 @@ in
       '';
       type = types.submoduleWith {
         specialArgs = {
-          inherit (config) machines clanLib;
+          inherit (config) machines;
         };
         modules = [
           {
@@ -359,7 +359,7 @@ in
                                   inherit clanLib;
                                 };
                               }
-                              (import ./role.nix { })
+                              (import ./roles-interface.nix { })
                             ];
                           }
                         );

lib/modules/inventoryClass/meta-interface.nix

@@ -31,20 +31,6 @@ let
         Under construction, will be used for the UI
       '';
     };
-    tld = lib.mkOption {
-      type = types.strMatching "[a-z]+";
-      default = "clan";
-      example = "ccc";
-      description = ''
-        Top level domain (TLD) of the clan. It should be set to a valid, but
-        not already existing TLD.
-
-        It will be used to provide clan-internal services and resolve each host of the
-        clan with:
-
-        <hostname>.<tld>
-      '';
-    };
   };
 in
 {

lib/modules/inventoryClass/roles-interface.nix

@@ -44,6 +44,12 @@ in
       description = ''
         List of additionally imported `.nix` expressions.
 
+        Supported types:
+
+        - **Strings**: Interpreted relative to the 'directory' passed to `lib.clan`.
+        - **Paths**: should be relative to the current file.
+        - **Any**: Nix expression must be serializable to JSON.
+
         !!! Note
             **The import only happens if the machine is part of the service or role.**
 
@@ -67,8 +73,15 @@ in
             }
             ```
       '';
+      apply = value: if lib.isString value then value else builtins.seq (builtins.toJSON value) value;
       default = [ ];
-      type = types.listOf types.raw;
+      type = types.listOf (
+        types.oneOf [
+          types.str
+          types.path
+          (types.attrsOf types.anything)
+        ]
+      );
     };
   };
 }

lib/modules/inventoryClass/service-list-from-inputs.nix

@@ -0,0 +1,70 @@
+{
+  flakeInputs,
+  clanLib,
+}:
+{ lib, config, ... }:
+let
+  inspectModule =
+    inputName: moduleName: module:
+    let
+      eval = clanLib.evalService {
+        modules = [ module ];
+        prefix = [
+          inputName
+          "clan"
+          "modules"
+          moduleName
+        ];
+      };
+    in
+    {
+      manifest = eval.config.manifest;
+      roles = lib.mapAttrs (_n: v: { inherit (v) description; }) eval.config.roles;
+    };
+in
+{
+  options.staticModules = lib.mkOption {
+    readOnly = true;
+    type = lib.types.raw;
+
+    apply = moduleSet: lib.mapAttrs (inspectModule "<clan-core>") moduleSet;
+  };
+  options.modulesPerSource = lib.mkOption {
+    # { sourceName :: { moduleName :: {} }}
+    readOnly = true;
+    type = lib.types.raw;
+    default =
+      let
+        inputsWithModules = lib.filterAttrs (_inputName: v: v ? clan.modules) flakeInputs;
+      in
+      lib.mapAttrs (
+        inputName: v: lib.mapAttrs (inspectModule inputName) v.clan.modules
+      ) inputsWithModules;
+  };
+  options.moduleSchemas = lib.mkOption {
+    # { sourceName :: { moduleName :: { roleName :: Schema }}}
+    readOnly = true;
+    type = lib.types.raw;
+    default = lib.mapAttrs (
+      _inputName: moduleSet:
+      lib.mapAttrs (
+        _moduleName: module:
+        (clanLib.evalService {
+          modules = [ module ];
+          prefix = [ ];
+        }).config.result.api.schema
+      ) moduleSet
+    ) config.modulesPerSource;
+  };
+  options.templatesPerSource = lib.mkOption {
+    # { sourceName :: { moduleName :: {} }}
+    readOnly = true;
+    type = lib.types.raw;
+    default =
+      let
+        inputsWithTemplates = lib.filterAttrs (_inputName: v: v ? clan.templates) flakeInputs;
+      in
+      lib.mapAttrs (_inputName: v: lib.mapAttrs (_n: t: t) v.clan.templates) inputsWithTemplates;
+
+  };
+}

lib/modules/machineModules/forName.nix

@@ -3,7 +3,6 @@
   directory,
   meta,
 }:
-# The following is a nixos/darwin module
 {
   _class,
   lib,
@@ -21,7 +20,7 @@
   );
 
   clan.core.settings = {
-    inherit (meta) name icon tld;
+    inherit (meta) name icon;
     inherit directory;
     machine = {
       inherit name;

lib/modules/tests.nix

@@ -81,7 +81,6 @@ in
         description = null;
         icon = null;
         name = "test";
-        tld = "clan";
       };
     };
 
@@ -106,7 +105,7 @@ in
         self = {
           inputs = { };
         };
-        directory = ../.;
+        directory = ../../.;
         meta.name = "test-clan-core";
       };
     in
@@ -124,7 +123,7 @@ in
         self = {
           inputs = { };
         };
-        directory = ../.;
+        directory = ../../.;
         meta.name = "test-clan-core";
       };
     in
@@ -212,87 +211,6 @@ in
       };
     };
 
-  test_clan_check_simple_fail =
-    let
-      eval = clan {
-        checks.constFail = {
-          assertion = false;
-          message = "This is a constant failure";
-        };
-      };
-    in
-    {
-      result = eval;
-      expr = eval.config;
-      expectedError.type = "ThrownError";
-      expectedError.msg = "This is a constant failure";
-    };
-  test_clan_check_simple_pass =
-    let
-      eval = clan {
-        checks.constFail = {
-          assertion = true;
-          message = "This is a constant success";
-        };
-      };
-    in
-    {
-      result = eval;
-      expr = lib.seq eval.config 42;
-      expected = 42;
-    };
-
-  test_get_var_machine =
-    let
-      varsLib = import ./vars.nix { };
-    in
-    {
-      expr = varsLib.getPublicValue {
-        backend = "in_repo";
-        default = "test";
-        shared = false;
-        generator = "test-generator";
-        machine = "test-machine";
-        file = "test-file";
-        flake = ./vars-test-flake;
-      };
-      expected = "foo-machine";
-    };
-
-  test_get_var_shared =
-    let
-      varsLib = import ./vars.nix { };
-    in
-    {
-      expr = varsLib.getPublicValue {
-        backend = "in_repo";
-        default = "test";
-        shared = true;
-        generator = "test-generator";
-        machine = "test-machine";
-        file = "test-file";
-        flake = ./vars-test-flake;
-      };
-      expected = "foo-shared";
-    };
-
-  test_get_var_default =
-    let
-      varsLib = import ./vars.nix { };
-    in
-    {
-      expr = varsLib.getPublicValue {
-        backend = "in_repo";
-        default = "test-default";
-        shared = true;
-        generator = "test-generator-wrong";
-        machine = "test-machine";
-        file = "test-file";
-        flake = ./vars-test-flake;
-      };
-      expected = "test-default";
-    };
-
   test_clan_all_machines_laziness =
     let
       eval = clan {

lib/test/flakeModules.nix

@@ -62,9 +62,6 @@
               # Core libraries
               (root + "/lib")
 
-              # modules directory
-              (root + "/modules")
-
               # User-provided fileset
               fileset
             ];

lib/vars-test-flake/vars/per-machine/test-machine/test-generator/test-file/value

@@ -1 +0,0 @@
-foo-machine

lib/vars-test-flake/vars/shared/test-generator/test-file/value

@@ -1 +0,0 @@
-foo-shared

lib/vars.nix

@@ -1,25 +0,0 @@
-_: {
-  getPublicValue =
-    {
-
-      backend ? "in_repo",
-      default ? throw "getPublicValue: Public value ${machine}/${generator}/${file} not found!",
-      shared ? false,
-      generator,
-      machine,
-      file,
-      flake,
-    }:
-
-    if backend == "in_repo" then
-      let
-        path =
-          if shared then
-            "${flake}/vars/shared/${generator}/${file}/value"
-          else
-            "${flake}/vars/per-machine/${machine}/${generator}/${file}/value";
-      in
-      if builtins.pathExists path then builtins.readFile path else default
-    else
-      throw "backend ${backend} does not implement getPublicValue";
-}

lib/vars_test.nix

@@ -1,3 +0,0 @@
-{
-
-}

modules/clan/checks.nix

@@ -1,16 +0,0 @@
-{ lib, nixpkgs, ... }:
-{
-  checks.minNixpkgsVersion = {
-    assertion = lib.versionAtLeast nixpkgs.lib.version "25.11";
-    message = ''
-      Nixpkgs version: ${nixpkgs.lib.version} is incompatible with clan-core. (>= 25.11 is recommended)
-      ---
-      Your version of 'nixpkgs' seems too old for clan-core.
-      Please read: https://docs.clan.lol/guides/nixpkgs-flake-input
-
-      You can ignore this check by setting:
-      clan.checks.minNixpkgsVersion.ignore = true;
-      ---
-    '';
-  };
-}

modules/clan/default.nix

@@ -1,25 +0,0 @@
-/**
-  Root 'clan' Module
-
-  Defines lib.clan and flake-parts.clan options
-  and all common logic for the 'clan' module.
-
-  - has Class _class = "clan"
-
-  - _module.args.clan-core: reference to clan-core flake
-  - _module.args.clanLib: reference to lib.clan function
-*/
-{ clan-core }:
-{
-  _class = "clan";
-  _module.args = {
-    inherit clan-core;
-    inherit (clan-core) clanLib;
-  };
-  imports = [
-    ./top-level-interface.nix
-    ./module.nix
-    ./distributed-services.nix
-    ./checks.nix
-  ];
-}

modules/clan/distributed-services.nix

@@ -1,163 +0,0 @@
-{
-  lib,
-  clanLib,
-  config,
-  clan-core,
-  ...
-}:
-let
-  inherit (lib) mkOption types;
-  # Keep a reference to top-level
-  clanConfig = config;
-
-  inventory = clanConfig.inventory;
-  flakeInputs = clanConfig.self.inputs;
-  clanCoreModules = clan-core.clan.modules;
-
-  grouped = lib.foldlAttrs (
-    acc: instanceName: instance:
-    let
-      inputName = if instance.module.input == null then "<clan-core>" else instance.module.input;
-      id = inputName + "-" + instance.module.name;
-    in
-    acc
-    // {
-      ${id} = acc.${id} or [ ] ++ [
-        {
-          inherit instanceName instance;
-        }
-      ];
-    }
-  ) { } importedModuleWithInstances;
-
-  importedModuleWithInstances = lib.mapAttrs (
-    instanceName: instance:
-    let
-      resolvedModule = clanLib.resolveModule {
-        moduleSpec = instance.module;
-        inherit flakeInputs clanCoreModules;
-      };
-
-      # Every instance includes machines via roles
-      # :: { client :: ... }
-      instanceRoles = lib.mapAttrs (
-        roleName: role:
-        let
-          resolvedMachines = clanLib.inventory.resolveTags {
-            members = {
-              # Explicit members
-              machines = lib.attrNames role.machines;
-              # Resolved Members
-              tags = lib.attrNames role.tags;
-            };
-            inherit (inventory) machines;
-            inherit instanceName roleName;
-          };
-        in
-        # instances.<instanceName>.roles.<roleName> =
-        # Remove "tags", they are resolved into "machines"
-        (removeAttrs role [ "tags" ])
-        // {
-          machines = lib.genAttrs resolvedMachines.machines (
-            machineName:
-            let
-              machineSettings = instance.roles.${roleName}.machines.${machineName}.settings or { };
-            in
-            # TODO: tag settings
-            # Wait for this feature until option introspection for 'settings' is done.
-            # This might get too complex to handle otherwise.
-            # settingsViaTags = lib.filterAttrs (
-            #   tagName: _: machineHasTag machineName tagName
-            # ) instance.roles.${roleName}.tags;
-            {
-              # TODO: Do we want to wrap settings with
-              # setDefaultModuleLocation "inventory.instances.${instanceName}.roles.${roleName}.tags.${tagName}";
-              settings = {
-                imports = [
-                  machineSettings
-                ]; # ++ lib.attrValues (lib.mapAttrs (_tagName: v: v.settings) settingsViaTags);
-              };
-            }
-          );
-        }
-      ) instance.roles;
-    in
-    {
-      inherit (instance) module;
-      inherit resolvedModule instanceRoles;
-    }
-  ) inventory.instances or { };
-in
-{
-  _class = "clan";
-  options._services = mkOption {
-    visible = false;
-    description = ''
-      All service instances
-
-      !!! Danger "Internal API"
-        Do not rely on this API yet.
-
-        - Will be renamed to just 'services' in the future.
-        Once the name can be claimed again.
-        - Structure will change.
-
-        API will be declared as public after beeing simplified.
-    '';
-    type = types.submoduleWith {
-      # TODO: Remove specialArgs
-      specialArgs = {
-        inherit clanLib;
-      };
-      modules = [
-        (import ../../lib/inventory/distributed-service/all-services-wrapper.nix {
-          inherit (clanConfig) directory;
-        })
-        # Dependencies
-        {
-          exportsModule = clanConfig.exportsModule;
-        }
-        {
-          # TODO: Rename to "allServices"
-          # All services
-          mappedServices = lib.mapAttrs (_module_ident: instances: {
-            imports = [
-              # Import the resolved module.
-              # i.e. clan.modules.admin
-              {
-                options.module = lib.mkOption {
-                  type = lib.types.raw;
-                  default = (builtins.head instances).instance.module;
-                };
-              }
-              (builtins.head instances).instance.resolvedModule
-            ] # Include all the instances that correlate to the resolved module
-            ++ (builtins.map (v: {
-              instances.${v.instanceName}.roles = v.instance.instanceRoles;
-            }) instances);
-          }) grouped;
-        }
-      ];
-    };
-    default = { };
-  };
-  options._allMachines = mkOption {
-    internal = true;
-    type = types.raw;
-    default = lib.mapAttrs (machineName: _: {
-      # This is the list of nixosModules for each machine
-      machineImports = lib.foldlAttrs (
-        acc: _module_ident: serviceModule:
-        acc ++ [ serviceModule.result.final.${machineName}.nixosModule or { } ]
-      ) [ ] config._services.mappedServices;
-    }) inventory.machines or { };
-  };
-
-  config = {
-    clanInternals.inventoryClass.machines = config._allMachines;
-    # clanInternals.inventoryClass.distributedServices = config._services;
-
-    # Exports from distributed services
-    exports = config._services.exports;
-  };
-}

modules/clan/flake-module.nix

@@ -1,27 +0,0 @@
-{ self, lib, ... }:
-let
-  clanModule = lib.modules.importApply ./default.nix { clan-core = self; };
-in
-{
-  flake.modules.clan.default = clanModule;
-  perSystem =
-    {
-      pkgs,
-      lib,
-      ...
-    }:
-    let
-      jsonDocs = import ./eval-docs.nix {
-        clan-core = self;
-        inherit
-          pkgs
-          lib
-          clanModule
-          ;
-        clanLib = self.clanLib;
-      };
-    in
-    {
-      legacyPackages.clan-options = jsonDocs.optionsJSON;
-    };
-}

modules/flake-module.nix

@@ -1,5 +0,0 @@
-{
-  imports = [
-    ./clan/flake-module.nix
-  ];
-}

modules/inventoryClass/default.nix

@@ -1,156 +0,0 @@
-{
-  lib,
-  clanLib,
-  config,
-  ...
-}:
-let
-  inherit (lib) types mkOption;
-  submodule = m: types.submoduleWith { modules = [ m ]; };
-
-  inspectModule =
-    inputName: moduleName: module:
-    let
-      eval = clanLib.evalService {
-        modules = [ module ];
-        prefix = [
-          inputName
-          "clan"
-          "modules"
-          moduleName
-        ];
-      };
-    in
-    {
-      manifest = eval.config.manifest;
-      roles = lib.mapAttrs (_n: v: { inherit (v) description; }) eval.config.roles;
-    };
-
-  exposedInventory = lib.intersectAttrs {
-    meta = null;
-    machines = null;
-    instances = null;
-    tags = null;
-  } config.inventory;
-
-  filterAttrsRecursive' =
-    path: pred: set:
-    lib.listToAttrs (
-      lib.concatMap (
-        name:
-        let
-          v = set.${name};
-          loc = path ++ [ name ];
-        in
-        if pred loc v then
-          [
-            (lib.nameValuePair name (if lib.isAttrs v then filterAttrsRecursive' loc pred v else v))
-          ]
-        else
-          [ ]
-      ) (lib.attrNames set)
-    );
-
-  filteredInventory = filterAttrsRecursive' [ ] (
-    # Remove extraModules from serialization,
-    # identified by: prefix + pathLength + name
-    # inventory.instances.*.roles.*.extraModules
-    path: _value: !(lib.length path == 5 && ((lib.last path)) == "extraModules")
-  ) exposedInventory;
-in
-{
-  options = {
-    flakeInputs = mkOption {
-      type = types.raw;
-    };
-    exportsModule = mkOption {
-      type = types.raw;
-    };
-
-    inventory = mkOption {
-      type = types.raw;
-    };
-    inventorySerialization = mkOption {
-      type = types.raw;
-      readOnly = true;
-      default = filteredInventory;
-    };
-    directory = mkOption {
-      type = types.path;
-    };
-    relativeDirectory = mkOption {
-      type = types.str;
-      internal = true;
-      description = ''
-        The relative directory path from the flake root to the clan directory.
-        Empty string if directory equals the flake root.
-      '';
-    };
-    machines = mkOption {
-      type = types.attrsOf (submodule ({
-        options = {
-          machineImports = mkOption {
-            type = types.listOf types.raw;
-          };
-        };
-      }));
-    };
-    introspection = lib.mkOption {
-      readOnly = true;
-      # TODO: use options.inventory instead of the evaluate config attribute
-      default =
-        builtins.removeAttrs (clanLib.introspection.getPrios { options = config.inventory.options; })
-          # tags are freeformType which is not supported yet.
-          # services is removed and throws an error if accessed.
-          [
-            "tags"
-            "services"
-          ];
-    };
-
-    staticModules = lib.mkOption {
-      readOnly = true;
-      type = lib.types.raw;
-
-      apply = moduleSet: lib.mapAttrs (inspectModule "<clan-core>") moduleSet;
-    };
-    modulesPerSource = lib.mkOption {
-      # { sourceName :: { moduleName :: {} }}
-      readOnly = true;
-      type = lib.types.raw;
-      default =
-        let
-          inputsWithModules = lib.filterAttrs (_inputName: v: v ? clan.modules) config.flakeInputs;
-        in
-        lib.mapAttrs (
-          inputName: v: lib.mapAttrs (inspectModule inputName) v.clan.modules
-        ) inputsWithModules;
-    };
-    moduleSchemas = lib.mkOption {
-      # { sourceName :: { moduleName :: { roleName :: Schema }}}
-      readOnly = true;
-      type = lib.types.raw;
-      default = lib.mapAttrs (
-        _inputName: moduleSet:
-        lib.mapAttrs (
-          _moduleName: module:
-          (clanLib.evalService {
-            modules = [ module ];
-            prefix = [ ];
-          }).config.result.api.schema
-        ) moduleSet
-      ) config.modulesPerSource;
-    };
-    templatesPerSource = lib.mkOption {
-      # { sourceName :: { moduleName :: {} }}
-      readOnly = true;
-      type = lib.types.raw;
-      default =
-        let
-          inputsWithTemplates = lib.filterAttrs (_inputName: v: v ? clan.templates) config.flakeInputs;
-        in
-        lib.mapAttrs (_inputName: v: lib.mapAttrs (_n: t: t) v.clan.templates) inputsWithTemplates;
-
-    };
-  };
-}

nixosModules/clanCore/metadata.nix

@@ -106,14 +106,6 @@ in
             # Set by the flake, so it's read-only in the machine
             readOnly = true;
           };
-          tld = lib.mkOption {
-            type = types.strMatching "[a-z]+";
-            description = ''
-              the TLD for the clan
-            '';
-            # Set by the flake, so it's read-only in the machine
-            readOnly = true;
-          };
           machine = mkOption {
             description = ''
               Settings of the machine.

nixosModules/flake-module.nix

@@ -18,7 +18,7 @@ let
         inputs.data-mesher.nixosModules.data-mesher
       ];
       config = {
-        clan.core.clanPkgs = lib.mkDefault self.packages.${pkgs.stdenv.hostPlatform.system};
+        clan.core.clanPkgs = lib.mkDefault self.packages.${pkgs.hostPlatform.system};
       };
     };
 in