Set up home-manager properly

flake.lock

@@ -19,6 +19,27 @@
         "type": "github"
       }
     },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1715077503,
+        "narHash": "sha256-AfHQshzLQfUqk/efMtdebHaQHqVntCMjhymQzVFLes0=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "6e277d9566de9976f47228dd8c580b97488734d4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "6e277d9566de9976f47228dd8c580b97488734d4",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1714532603,
@@ -69,6 +90,7 @@
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
+        "home-manager": "home-manager",
         "nixpkgs": "nixpkgs",
         "sops-nix": "sops-nix"
       }

flake.nix

@@ -4,10 +4,16 @@
   inputs = {
     nixpkgs.url = "nixpkgs/38c01297e7ec11f7b9e3f2cae7d6fcec6cc767ec";
     flake-utils.url = "github:numtide/flake-utils?ref=b1d9ab70662946ef0850d488da1c9019f3a9752a";
+
+    home-manager = {
+      url = "github:nix-community/home-manager?ref=6e277d9566de9976f47228dd8c580b97488734d4";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     sops-nix.url = "github:Mic92/sops-nix?ref=f1b0adc27265274e3b0c9b872a8f476a098679bd";
   };
 
-  outputs = { self, nixpkgs, flake-utils, sops-nix }: (
+  outputs = { self, nixpkgs, flake-utils, home-manager, sops-nix }: (
     let
       inherit (nixpkgs) lib;
 
@@ -83,6 +89,7 @@
                           };
                       };
                     })
+                  home-manager.nixosModules.home-manager
                   sops-nix.nixosModules.sops
                   ./lib/configuration.nix
                   (tryFiles [ ./lib/machines/${name}.nix ] ./lib/hardware/base.nix)
@@ -109,7 +116,7 @@
                 in
                   lib.attrsets.concatMapAttrs (
                     username: user: {
-                      "${username}@${hostname}" = {
+                      "${username}@${hostname}" = home-manager.lib.homeManagerConfiguration {
                         modules =
                           let
                             getUserConfig = import ./lib/utils/user-config.nix { inherit lib; };

lib/configuration.nix

@@ -1,4 +1,4 @@
-{ hostname, machineConfig, ... }: {
+{ hostname, lib, machineConfig, ... }: {
   imports = [
     ./modules/custom-build-vm.nix
     ./modules/custom-sops-nix.nix
@@ -29,6 +29,28 @@
 
     users.myUsers = machineConfig.users;
 
+    home-manager = {
+      useUserPackages = true;
+      useGlobalPkgs = true;
+
+      users =
+        lib.attrsets.concatMapAttrs (username: user:
+          let
+            getUserConfig = import ./utils/user-config.nix { inherit lib; };
+            configPath = getUserConfig { inherit hostname username; };
+          in
+          if (configPath != null)
+          then {
+            ${username} = { pkgs, ... }@args: import configPath ({
+              userConfig = {
+                inherit hostname username;
+              } // user;
+            } // args);
+          }
+          else {})
+          machineConfig.users;
+    };
+
     # Networking
     networking.hostName = hostname;