added git-secret and gotify-desktop feature

modules/features/gotify-desktop/default.nix

@@ -0,0 +1,46 @@
+{
+  self,
+  inputs,
+  ...
+}: {
+  flake.nixosModules.gotify-desktop = {
+    pkgs,
+    lib,
+    ...
+  }: {
+    environment.systemPackages = [
+      self.packages.${pkgs.stdenv.hostPlatform.system}.gotify-desktop
+    ];
+  };
+  perSystem = {
+    pkgs,
+    lib,
+    self',
+    ...
+  }: {
+    packages = {
+      gotify-desktop = let
+        # Requires gpg keyring cert in order to get api key
+        config-file = pkgs.writeText "config.toml" ''
+          	[gotify]
+          	url = "wss://ntfy.voidarc.co.uk:443"
+          		token = { command = "${pkgs.gnupg}/bin/gpg --quiet --batch --decrypt ${./gotify-key.secret}" }
+          [notification]
+          	min_priority = 1
+        '';
+      in
+        inputs.wrappers.lib.wrapPackage ({
+          config,
+          wlib,
+          lib,
+          ...
+        }: {
+          inherit pkgs;
+          package = inputs.gotify-desktop.packages.${pkgs.stdenv.hostPlatform.system}.default;
+          flags = {
+            "-c" = config-file;
+          };
+        });
+    };
+  };
+}