add basic home-manager test

checks/home-manager.nix

@@ -0,0 +1,14 @@
+{ config, ... }: {
+  imports = [
+    ../modules/home-manager/sops.nix
+  ];
+  home.stateVersion = "25.05";
+  home.username = "sops-user";
+  home.homeDirectory = "/home/sops-user";
+  home.enableNixpkgsReleaseCheck = false;
+
+  sops.age.generateKey = true;
+  sops.age.keyFile = "${config.home.homeDirectory}/.age-key.txt";
+  sops.secrets.test_key = { };
+  sops.defaultSopsFile = ../pkgs/sops-install-secrets/test-assets/secrets.yaml;
+}

flake.lock

@@ -1,5 +1,25 @@
 {
   "nodes": {
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1731832479,
+        "narHash": "sha256-icDDuYwJ0avTMZTxe1qyU/Baht5JOqw4pb5mWpR+hT0=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "5056a1cf0ce7c2a08ab50713b6c4af77975f6111",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
     "nix-darwin": {
       "inputs": {
         "nixpkgs": [
@@ -54,6 +74,7 @@
     },
     "root": {
       "inputs": {
+        "home-manager": "home-manager",
         "nix-darwin": "nix-darwin",
         "nixpkgs": "nixpkgs",
         "nixpkgs-stable": "nixpkgs-stable"

flake.nix

@@ -6,6 +6,9 @@
   inputs.nix-darwin.url = "github:LnL7/nix-darwin";
   inputs.nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
 
+  inputs.home-manager.url = "github:nix-community/home-manager";
+  inputs.home-manager.inputs.nixpkgs.follows = "nixpkgs";
+
   nixConfig.extra-substituters = ["https://cache.thalheim.io"];
   nixConfig.extra-trusted-public-keys = ["cache.thalheim.io-1:R7msbosLEZKrxk/lKxf9BTjOOH7Ax3H0Qj0/6wiHOgc="];
   outputs = {
@@ -13,6 +16,7 @@
     nixpkgs,
     nixpkgs-stable,
     nix-darwin,
+    home-manager,
   } @ inputs: let
     systems = [
       "x86_64-linux"
@@ -49,6 +53,16 @@
         inherit inputs;
       };
     };
+    legacyPackages = nixpkgs.lib.genAttrs ["x86_64-linux" "aarch64-linux" "aarch64-darwin"] (system: let
+       pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        homeConfigurations.sops = home-manager.lib.homeManagerConfiguration {
+          modules = [
+            ./checks/home-manager.nix
+          ];
+          inherit pkgs;
+        };
+    });
 
     packages = forAllSystems (system:
       import ./default.nix {