feat: add cinnamon

maintainers/maintainer-list.nix

@@ -4528,6 +4528,16 @@
     githubId = 22477669;
     name = "Mark K Gardner";
   };
+  mkg20001 = {
+    email = "[email protected]";
+    github = "mkg20001";
+    githubId = 7735145;
+    name = "Maciej Krüger";
+    keys = [{
+      longkeyid = "rsa4096/0x0D948CE19CF49C5F";
+      fingerprint = "E90C BA34 55B3 6236 740C  038F 0D94 8CE1 9CF4 9C5F";
+    }];
+  };
   mlieberman85 = {
     email = "[email protected]";
     github = "mlieberman85";

nixos/modules/services/x11/desktop-managers/cinnamon.nix

@@ -0,0 +1,52 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.xserver.desktopManager.cinnamon;
+in
+
+{
+
+  options = {
+    services.xserver.desktopManager.cinnamon = {
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = "Enable the Cinnamon desktop environment.";
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs.cinnamon // pkgs; [
+      # common-files
+      cinnamon-common
+      cinnamon-session
+      cinnamon-desktop
+
+      # session requirements
+      cinnamon-screensaver
+      # nemo-autostart: provided by nemo
+      pkgs.gnome3.networkmanagerapplet
+      # cinnamon-killer-daemon: provided by cinnamon-common
+
+      # packages
+      nemo
+    ];
+
+    environment.pathsToLink = [
+      "/share" # TODO: https://github.com/NixOS/nixpkgs/issues/47173
+    ];
+
+    services.xserver.desktopManager.session = [{
+      name = "cinnamon";
+      bgSupport = true;
+      start = ''
+        ${pkgs.runtimeShell} ${pkgs.cinnamon.cinnamon-session}/bin/cinnamon-session & # cinnamon-session-cinnamon &
+        # or cinnamon-session-cinnamon2d for 2d/sw-rendering. how to add?
+        waitPID=$!
+      '';
+    }];
+  };
+}

nixos/modules/services/x11/desktop-managers/default.nix

@@ -20,7 +20,7 @@ in
   imports = [
     ./none.nix ./xterm.nix ./xfce.nix ./plasma5.nix ./lumina.nix
     ./lxqt.nix ./enlightenment.nix ./gnome3.nix ./kodi.nix ./maxx.nix
-    ./mate.nix ./pantheon.nix ./surf-display.nix
+    ./mate.nix ./pantheon.nix ./surf-display.nix ./cinnamon.nix
   ];
 
   options = {