Fix: SDDM DM, SSH server, cleanup pi

flake.nix

@@ -1,5 +1,5 @@
 {
-  description = "Scobleclaw — NixOS + home-manager configuration for personal laptop (x86_64) and work Mac (aarch64)";
+  description = "Scobleclaw NixOS + home-manager configuration";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
@@ -18,49 +18,13 @@
     linuxSystem = "x86_64-linux";
     darwinSystem = "aarch64-darwin";
 
-    # Linux pkgs with overlay (pi, qmd)
     linuxPkgs = import nixpkgs {
       system = linuxSystem;
       overlays = [ self.overlays.default ];
     };
   in {
-    # === Overlay: pi + qmd (Linux only) ===
-    overlays.default = final: prev: {
-      pi-coding-agent = final.buildNpmPackage {
-        pname = "pi-coding-agent";
-        version = "0.73.0";
-        src = pi-mono;
-        npmDepsHash = "";  # Fill after first build
-        npmWorkspace = "packages/coding-agent";
-        npmFlags = [ "--legacy-peer-deps" ];
-        dontNpmBuild = true;
-        preConfigure = ''
-          cd packages/ai && npm run build && cd ../..
-          cd packages/agent && npm run build && cd ../..
-          cd packages/tui && npm run build && cd ../..
-          cd packages/coding-agent && npm run build && cd ../..
-        '';
-        installPhase = ''
-          runHook preInstall
-          mkdir -p $out/lib/node_modules/@mariozechner/pi-coding-agent
-          cp -r packages/coding-agent/dist $out/lib/node_modules/@mariozechner/pi-coding-agent/
-          cp packages/coding-agent/package.json $out/lib/node_modules/@mariozechner/pi-coding-agent/
-          mkdir -p $out/bin
-          cat > $out/bin/pi <<'EOF'
-          #!/usr/bin/env bash
-          exec ${final.nodejs}/bin/node $out/lib/node_modules/@mariozechner/pi-coding-agent/dist/cli.js "$@"
-          EOF
-          chmod +x $out/bin/pi
-          runHook postInstall
-        '';
-      };
+    overlays.default = import ./pi-overlay.nix;
 
-      qmd = final.writeShellScriptBin "qmd" ''
-        exec ${final.bun}/bin/bunx --bun @tobilu/qmd "$@"
-      '';
-    };
-
-    # === NixOS: full system + desktop ===
     nixosConfigurations.laptop = nixpkgs.lib.nixosSystem {
       system = linuxSystem;
       modules = [
@@ -70,6 +34,7 @@
         ./modules/t490.nix
         nixos-hardware.nixosModules.lenovo-thinkpad-t490
         { nixpkgs.config.allowUnfree = true; }
+        { nixpkgs.overlays = [ self.overlays.default ]; }
         {
           home-manager = {
             useGlobalPkgs = true;
@@ -86,13 +51,13 @@
       ];
     };
 
-    # === VM: minimal NixOS for testing (aarch64, UTM) ===
     nixosConfigurations.vm = nixpkgs.lib.nixosSystem {
       system = "aarch64-linux";
       modules = [
         home-manager.nixosModules.home-manager
         ./modules/vm.nix
         { nixpkgs.config.allowUnfree = true; }
+        { nixpkgs.overlays = [ self.overlays.default ]; }
         {
           home-manager = {
             useGlobalPkgs = true;
@@ -108,7 +73,6 @@
       ];
     };
 
-    # === macOS: home-manager standalone (no desktop, no Hyprland) ===
     homeConfigurations.sscoble = home-manager.lib.homeManagerConfiguration {
       pkgs = nixpkgs.legacyPackages.${darwinSystem};
       modules = [
@@ -121,10 +85,8 @@
       ];
     };
 
-    # === Dev shell (Linux) ===
     devShells.${linuxSystem}.default = linuxPkgs.mkShell {
       buildInputs = with linuxPkgs; [
-        pi-coding-agent
         qmd
         nodejs
         bun
@@ -132,7 +94,7 @@
         zsh
       ];
       shellHook = ''
-        echo "🦞 Scobleclaw dev shell"
+        echo "Scobleclaw dev shell"
         echo "  pi:      $(which pi)"
         echo "  qmd:     $(which qmd)"
         echo "  node:    $(node --version)"