diff --git a/checks/flash/flake-module.nix b/checks/flash/flake-module.nix
index 5d8a5ae2b..7887005cb 100644
--- a/checks/flash/flake-module.nix
+++ b/checks/flash/flake-module.nix
@@ -10,10 +10,10 @@
     let
       dependencies = [
         pkgs.disko
-        self.clanInternals.machines.${pkgs.hostPlatform.system}.test_install_machine.config.system.build.toplevel
-        self.clanInternals.machines.${pkgs.hostPlatform.system}.test_install_machine.config.system.build.diskoScript
-        self.clanInternals.machines.${pkgs.hostPlatform.system}.test_install_machine.config.system.build.diskoScript.drvPath
-        self.clanInternals.machines.${pkgs.hostPlatform.system}.test_install_machine.config.system.clan.deployment.file
+        self.clanInternals.machines.${pkgs.hostPlatform.system}.test-install-machine.config.system.build.toplevel
+        self.clanInternals.machines.${pkgs.hostPlatform.system}.test-install-machine.config.system.build.diskoScript
+        self.clanInternals.machines.${pkgs.hostPlatform.system}.test-install-machine.config.system.build.diskoScript.drvPath
+        self.clanInternals.machines.${pkgs.hostPlatform.system}.test-install-machine.config.system.clan.deployment.file
       ] ++ builtins.map (i: i.outPath) (builtins.attrValues self.inputs);
       closureInfo = pkgs.closureInfo { rootPaths = dependencies; };
     in
@@ -42,7 +42,7 @@
           testScript = ''
             start_all()
 
-            machine.succeed("clan flash --debug --flake ${../..} --yes --disk main /dev/vdb test_install_machine")
+            machine.succeed("clan flash --debug --flake ${../..} --yes --disk main /dev/vdb test-install-machine")
           '';
         } { inherit pkgs self; };
       };
diff --git a/checks/installation/flake-module.nix b/checks/installation/flake-module.nix
index ac8ddf847..7fb1ee8bf 100644
--- a/checks/installation/flake-module.nix
+++ b/checks/installation/flake-module.nix
@@ -1,14 +1,14 @@
 { self, lib, ... }:
 {
-  clan.machines.test_install_machine = {
-    clan.core.networking.targetHost = "test_install_machine";
+  clan.machines.test-install-machine = {
+    clan.core.networking.targetHost = "test-install-machine";
     fileSystems."/".device = lib.mkDefault "/dev/vdb";
     boot.loader.grub.device = lib.mkDefault "/dev/vdb";
 
-    imports = [ self.nixosModules.test_install_machine ];
+    imports = [ self.nixosModules.test-install-machine ];
   };
   flake.nixosModules = {
-    test_install_machine =
+    test-install-machine =
       { lib, modulesPath, ... }:
       {
         imports = [
@@ -34,9 +34,9 @@
     let
       dependencies = [
         self
-        self.nixosConfigurations.test_install_machine.config.system.build.toplevel
-        self.nixosConfigurations.test_install_machine.config.system.build.diskoScript
-        self.nixosConfigurations.test_install_machine.config.system.clan.deployment.file
+        self.nixosConfigurations.test-install-machine.config.system.build.toplevel
+        self.nixosConfigurations.test-install-machine.config.system.build.diskoScript
+        self.nixosConfigurations.test-install-machine.config.system.clan.deployment.file
         pkgs.stdenv.drvPath
         pkgs.nixos-anywhere
       ] ++ builtins.map (i: i.outPath) (builtins.attrValues self.inputs);
@@ -96,9 +96,12 @@
             start_all()
 
             client.succeed("${pkgs.coreutils}/bin/install -Dm 600 ${../lib/ssh/privkey} /root/.ssh/id_ed25519")
-            client.wait_until_succeeds("ssh -o StrictHostKeyChecking=accept-new -v root@target hostname")
-
-            client.succeed("clan machines install --debug --flake ${../..} --yes test_install_machine root@target >&2")
+            client.wait_until_succeeds("timeout 2 ssh -o StrictHostKeyChecking=accept-new -v root@target hostname")
+            client.succeed("cp -r ${../..} test-flake && chmod -R +w test-flake")
+            client.fail("test -f test-flake/machines/test-install-machine/hardware-configuration.nix")
+            client.succeed("clan machines hw-generate --flake test-flake test-install-machine root@target>&2")
+            client.succeed("test -f test-flake/machines/test-install-machine/hardware-configuration.nix")
+            client.succeed("clan machines install --debug --flake ${../..} --yes test-install-machine root@target >&2")
             try:
               target.shutdown()
             except BrokenPipeError:
diff --git a/pkgs/clan-cli/clan_cli/machines/hardware.py b/pkgs/clan-cli/clan_cli/machines/hardware.py
index c47d5a37c..f7b28863c 100644
--- a/pkgs/clan-cli/clan_cli/machines/hardware.py
+++ b/pkgs/clan-cli/clan_cli/machines/hardware.py
@@ -1,7 +1,7 @@
 import argparse
-import dataclasses
 import json
 import logging
+from dataclasses import dataclass
 from pathlib import Path
 from typing import Literal
 
@@ -19,7 +19,7 @@ from .types import machine_name_type
 log = logging.getLogger(__name__)
 
 
-@dataclasses.dataclass
+@dataclass
 class HardwareReport:
     file: Literal["nixos-generate-config", "nixos-facter"]
 
@@ -120,8 +120,6 @@ def generate_machine_hardware_info(
         [
             "nixpkgs#openssh",
             "nixpkgs#sshpass",
-            # Provides nixos-generate-config on non-NixOS systems
-            "nixpkgs#nixos-install-tools",
         ],
         [
             *(["sshpass", "-p", f"{password}"] if password else []),
@@ -202,15 +200,29 @@ def generate_machine_hardware_info(
     return HardwareReport("nixos-generate-config")
 
 
+@dataclass
+class HardwareGenerateOptions:
+    flake: FlakeId
+    machine: str
+    target_host: str | None
+    password: str | None
+    force: bool | None
+
+
 def hw_generate_command(args: argparse.Namespace) -> None:
-    hw_info = generate_machine_hardware_info(
-        args.flake, args.machine, args.hostname, args.password, args.force
+    opts = HardwareGenerateOptions(
+        flake=args.flake,
+        machine=args.machine,
+        target_host=args.target_host,
+        password=args.password,
+        force=args.force,
+    )
+    hw_info = generate_machine_hardware_info(
+        opts.flake, opts.machine, opts.target_host, opts.password, opts.force
     )
-    print("----")
     print("Successfully generated hardware information.")
-    print(f"Target: {args.machine} ({args.hostname})")
+    print(f"Target: {opts.machine} ({opts.target_host})")
     print(f"Type: {hw_info.file}")
-    print("----")
 
 
 def register_hw_generate(parser: argparse.ArgumentParser) -> None:
diff --git a/pkgs/clan-cli/clan_cli/machines/types.py b/pkgs/clan-cli/clan_cli/machines/types.py
index 5c9ce484c..0c7ebd67c 100644
--- a/pkgs/clan-cli/clan_cli/machines/types.py
+++ b/pkgs/clan-cli/clan_cli/machines/types.py
@@ -17,6 +17,6 @@ def machine_name_type(arg_value: str) -> str:
         )
     if not VALID_HOSTNAME.match(arg_value):
         raise argparse.ArgumentTypeError(
-            "Invalid character in machine name. Allowed characters are a-z, 0-9, ., -, and _. Must not start with a number"
+            "Invalid character in machine name. Allowed characters are a-z, 0-9, ., and -. Must not start with a number"
         )
     return arg_value