lib: replace uniqueStrings after upstreamed

clanServices/sshd/default.nix

@@ -39,7 +39,6 @@
             ...
           }:
           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 [ ]) (
@@ -47,7 +46,7 @@
               )
             );
             # Merge client's searchDomains with all servers' searchDomains
-            searchDomains = uniqueStrings (settings.certificate.searchDomains ++ allServerSearchDomains);
+            searchDomains = lib.uniqueStrings (settings.certificate.searchDomains ++ allServerSearchDomains);
           in
           {
             clan.core.vars.generators.openssh-ca = lib.mkIf (searchDomains != [ ]) {

clanServices/zerotier/default.nix

@@ -140,9 +140,6 @@
             pkgs,
             ...
           }:
-          let
-            uniqueStrings = list: builtins.attrNames (builtins.groupBy lib.id list);
-          in
           {
             imports = [
               (import ./shared.nix {
@@ -159,7 +156,7 @@
             config = {
               systemd.services.zerotier-inventory-autoaccept =
                 let
-                  machines = uniqueStrings (
+                  machines = lib.uniqueStrings (
                     (lib.optionals (roles ? moon) (lib.attrNames roles.moon.machines))
                     ++ (lib.optionals (roles ? controller) (lib.attrNames roles.controller.machines))
                     ++ (lib.optionals (roles ? peer) (lib.attrNames roles.peer.machines))

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

@@ -7,14 +7,10 @@
   ...
 }:
 let
-  inherit (lib) mkOption types;
+  inherit (lib) mkOption types uniqueStrings;
   inherit (types) attrsWith submoduleWith;
 
   errorContext = "Error context: ${lib.concatStringsSep "." _ctx}";
-  # TODO:
-  # Remove once this gets merged upstream; performs in O(n*log(n) instead of O(n^2))
-  # https://github.com/NixOS/nixpkgs/pull/355616/files
-  uniqueStrings = list: builtins.attrNames (builtins.groupBy lib.id list);
   /**
     Merges the role- and machine-settings using the role interface