expose overlay (2)

flake.nix

@@ -1,63 +1,59 @@
 {
-  inputs = {
-    nixpkgs.url = "nixpkgs/nixos-24.11";
-    # Required for multi platform support
-    flake-utils.url = "github:numtide/flake-utils";
-  };
+  description = "eintopf-radar-sync package and service";
 
-  outputs =
-    {
-      self,
-      nixpkgs,
-      flake-utils,
-    }:
-    flake-utils.lib.eachDefaultSystem (
-      system:
-      let
-        pkgs = import nixpkgs { inherit system; };
-      in
-      rec {
-        devShell = pkgs.mkShell {
-          packages =
-            with pkgs;
-            with python3Packages;
-            [
-              python
-              requests
-              beautifulsoup4
-              pyyaml
-            ];
-        };
+  inputs.nixpkgs.url = "nixpkgs/nixos-24.11";
 
-        packages = flake-utils.lib.flattenTree {
-          eintopf-radar-sync = pkgs.python3Packages.buildPythonApplication {
-            pname = "eintopf-radar-sync";
-            version = "0.0.1";
-            format = "other";
-
-            src = self;
-
-            dependencies = with pkgs.python3Packages; [
-              python
-              requests
-              beautifulsoup4
-              pyyaml
-            ];
-
-            installPhase = ''
-              install -Dm755 ${./eintopf-radar-sync.py} $out/bin/eintopf-radar-sync
-            '';
-          };
-        };
-
-        defaultPackage = packages.eintopf-radar-sync;
-
-        # eintopf-radar-sync service module
-        nixosModule = (import ./module.nix);
-
-        overlay = self: super: {
-          eintopf-radar-sync = packages.eintopf-radar-sync;
-        };
+  outputs = { self, nixpkgs }:
+  let
+    systems = [ "x86_64-linux" "i686-linux" "aarch64-linux" ];
+    forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
+    # Import nixpkgs with our overlay for each system.
+    nixpkgsFor = forAllSystems (system:
+      import nixpkgs {
+        inherit system;
+        overlays = [ self.overlay ];
       }
     );
+  in {
+    overlay = final: prev: {
+      eintopf-radar-sync = with final; python3Packages.buildPythonApplication {
+        pname = "eintopf-radar-sync";
+        version = "0.0.1";
+        format = "other";
+
+        src = self;
+
+        dependencies = with python3Packages; [
+          python
+          requests
+          beautifulsoup4
+          pyyaml
+        ];
+
+        installPhase = ''
+          install -Dm755 ${./eintopf-radar-sync.py} $out/bin/eintopf-radar-sync
+        '';
+      };
+    };
+
+    packages = forAllSystems (system: {
+      inherit (nixpkgsFor.${system}) eintopf-radar-sync;
+    });
+
+    defaultPackage = forAllSystems (system: self.packages.${system}.eintopf-radar-sync);
+
+    devShells = forAllSystems (system: let
+      pkgs = import nixpkgs { inherit system; overlays = [ self.overlay ]; };
+    in pkgs.mkShell {
+      buildInputs = with pkgs; with python3Packages; [
+        python
+        requests
+        beautifulsoup4
+        pyyaml
+      ];
+    });
+
+    # eintopf-radar-sync service module
+    nixosModule = (import ./module.nix);
+  };
 }