use unstable niri and dms

flake.nix

@@ -21,6 +21,14 @@
       url = "github:youwen5/zen-browser-flake";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    dms = {
+      url = "github:AvengeMedia/DankMaterialShell/stable";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+    };
+    dgop = { # depended on by dms
+      url = "github:AvengeMedia/dgop";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+    };
   };
 
   outputs = { self, nixpkgs, nixpkgs-unstable, ... }@inputs:

modules/niri.nix

@@ -1,5 +1,10 @@
-{ config, pkgs, ... }:
+{ inputs, config, pkgs, pkgs-unstable, ... }:
 {
+  imports = [
+    inputs.dms.nixosModules.dank-material-shell
+    inputs.dms.nixosModules.greeter
+  ];
+
   programs.niri.enable = true;
 
   environment.systemPackages = with pkgs; [
@@ -13,8 +18,18 @@
     mpv
   ];
 
-  programs.dms-shell.enable = true;
+  programs.dank-material-shell = {
+    enable = true;
+    systemd = {
+      enable = true;
+      restartIfChanged = true;
+    };
+    enableSystemMonitoring = true;
+    dgop.package = inputs.dgop.packages.${pkgs.system}.default;
+  };
 
-  services.displayManager.dms-greeter.enable = true;
-  services.displayManager.dms-greeter.compositor.name = "niri";
+  programs.dank-material-shell.greeter = {
+    enable = true;
+    compositor.name = "niri";
+  };
 }