trial crywl (personal dwl fork)

hosts/lolcathost/default.nix

@@ -17,6 +17,7 @@ in {
 
     ../modules/wm/hyprland.nix
     # ../modules/wm/river.nix
+    ../modules/wm/crywl.nix
 
     ../modules/steam.nix
     ../modules/obsidian.nix
@@ -208,6 +209,7 @@ in {
   # ---- SYSTEM PACKAGES -----
   environment.systemPackages = with pkgs; [
     # User Environment
+    # crywl
     swww
     helvum
     easyeffects
@@ -312,13 +314,13 @@ in {
   ];
 
   programs = {
-    hyprland = {
+    crywl = {
       enable = true;
-      withUWSM = true; # Universal Wayland Session Manager
+      xwayland.enable = false;
-      xwayland.enable = true;
+      defaultSession = false;
+      useUnmodifiedDWL = false;
     };
 
-    zsh.enable = true;
     fish.enable = true;
 
     nix-ld.enable = true;

hosts/modules/wm/crywl.nix

@@ -0,0 +1,116 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  cfg = config.programs.crywl;
+in {
+  options.programs.crywl = with lib; {
+    enable = mkEnableOption "CryWL";
+    xwayland.enable = mkEnableOption "XWayland";
+    defaultSession = mkEnableOption "CryWL as the default login session";
+
+    # currently DWL 0.7 (also beware I'll barely ever update the original DWL refs)
+    useUnmodifiedDWL = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Whether to use unmodified DWL source code (latest stable release)";
+    };
+  };
+
+  config = lib.mkIf cfg.enable (let
+    xwaylandEnabled = cfg.xwayland.enable;
+    defaultSession = cfg.defaultSession;
+    useUnmodifiedDWL = cfg.useUnmodifiedDWL;
+  in {
+    services.displayManager = {
+      sessionPackages = [
+        pkgs.crywl
+      ];
+
+      defaultSession = lib.mkIf defaultSession "crywl";
+    };
+
+    environment.systemPackages = [
+      pkgs.crywl
+    ];
+
+    nixpkgs.overlays = [
+      (self: super: {
+        crywl = super.dwl.overrideAttrs (oldAttrs: rec {
+          pname = "crywl";
+          version = "0.1-unstable";
+
+          src = let
+            dwl_0_70 = {
+              rev = "74e45c4014ae7048ecbb76eb6f54034b8b479480";
+              hash = "sha256-7SoCITrbMrlfL4Z4hVyPpjB9RrrjLXHP9C5t1DVXBBA=";
+            };
+            crywl_unstable = {
+              rev = "dc1260d3cfd14e8e5b243ec1d3d56e4b08c8c517";
+              hash = "sha256-61R+xBYMzeEn93gLofcj8Y3VbJqW6g7GzCTujpAco90=";
+            };
+          in
+            pkgs.fetchFromGitea ({
+                domain = "forge.imbored.dev";
+                owner = "emileclarkb";
+                repo = pname;
+              }
+              // (
+                if useUnmodifiedDWL
+                then dwl_0_70
+                else crywl_unstable
+              ));
+
+          buildInputs = with pkgs;
+            [
+              libinput
+              xorg.libxcb
+              libxkbcommon
+              pixman
+              wayland
+              wayland-protocols
+              wlroots_0_19
+            ]
+            ++ lib.optionals xwaylandEnabled [
+              xorg.libX11
+              xorg.xcbutilwm
+              xwayland
+            ];
+
+          makeFlags =
+            [
+              "PKG_CONFIG=${pkgs.stdenv.cc.targetPrefix}pkg-config"
+              "WAYLAND_SCANNER=wayland-scanner"
+              "PREFIX=$(out)"
+              "MANDIR=$(man)/share/man"
+            ]
+            ++ lib.optionals xwaylandEnabled [
+              ''XWAYLAND="-DXWAYLAND"''
+              ''XLIBS="xcb xcb-icccm.pc"''
+            ];
+
+          # Ensure `crywl.desktop` entry is registered
+          passthru = {
+            providedSessions = [pname];
+
+            tests.version = pkgs.testers.testVersion {
+              package = oldAttrs.finalPackage;
+              # `dwl -v` emits its version string to stderr and returns 1
+              command = "crywl -v 2>&1; return 0";
+            };
+          };
+          meta = {
+            homepage = "https://forge.imbored.dev/emileclarkb/crywl";
+            description = "Personal fork of DWL";
+            license = lib.licenses.gpl3Only;
+            maintainers = [lib.maintainers.emileclarkb];
+            inherit (pkgs.wayland.meta) platforms;
+            mainProgram = "crywl";
+          };
+        });
+      })
+    ];
+  });
+}