added niri config

shared/client/niri.nix

@@ -0,0 +1,55 @@
+{ config, pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    mako
+    grim
+    slurp
+    wl-clipboard
+    xdg-utils
+    sway-contrib.grimshot
+    swaylock
+    swaynotificationcenter
+    nautilus
+    libheif
+    libheif.out
+  ];
+
+  services.gvfs.enable = true;
+  services.gnome.gnome-keyring.enable = true;
+  programs.niri = {
+    enable = true;
+  };
+
+  xdg.portal = {
+    wlr.enable = true;
+    extraPortals = [
+      pkgs.xdg-desktop-portal-gtk
+      pkgs.xdg-desktop-portal-gnome
+    ];
+  };
+  security.pam.loginLimits = [
+    {
+      domain = "@users";
+      item = "rtprio";
+      type = "-";
+      value = 1;
+    }
+  ];
+
+  nixpkgs.overlays = [
+    (final: prev: {
+      nautilus = prev.nautilus.overrideAttrs (nprev: {
+        buildInputs =
+          nprev.buildInputs
+          ++ (with pkgs.gst_all_1; [
+            gst-plugins-good
+            gst-plugins-bad
+          ]);
+      });
+    })
+  ];
+
+  programs.waybar = {
+    enable = true;
+  };
+}