ayugram-desktop: init at 4.16.8

pkgs/by-name/ay/ayugram-desktop/package.nix

@@ -0,0 +1,53 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  telegram-desktop,
+}:
+let
+  mainProgram = if stdenv.isLinux then "ayugram-desktop" else "Ayugram";
+in
+(telegram-desktop.override { inherit mainProgram; }).overrideAttrs (
+  finalAttrs: previousAttrs: {
+    pname = "ayugram-desktop";
+    version = "4.16.8";
+
+    src = fetchFromGitHub {
+      owner = "AyuGram";
+      repo = "AyuGramDesktop";
+      rev = "v${finalAttrs.version}";
+      fetchSubmodules = true;
+      hash = "sha256-HrvqENRRyRzTDUUgzAHPBwNVo5dDTUsGIFOH75RQes0=";
+    };
+
+    # Since the original .desktop file is for Flatpak, we need to fix it.
+    postInstall =
+      lib.optionalString stdenv.isLinux
+        # Rudiment: related functionality is disabled by disabling the auto-updater
+        # and it breaks the .desktop file in Aylur's Gtk Shell
+        # (with it, it causes the application to not be seen by the app launcher).
+        # https://github.com/AyuGram/AyuGramDesktop/blob/5566a8ca0abe448a7f1865222b64b68ed735ee07/Telegram/SourceFiles/platform/linux/specific_linux.cpp#L455
+        ''
+          substituteInPlace $out/share/applications/com.ayugram.desktop.desktop \
+            --replace-fail 'Exec=DESKTOPINTEGRATION=1 ' 'Exec='
+        ''
+      +
+        # Since we aren't in Flatpak, "DBusActivatable" has no unit to
+        # activate and it causes the .desktop file to show the error "Could not activate remote peer
+        # 'com.ayugram.desktop': unit failed" (at least on KDE6).
+        ''
+          substituteInPlace $out/share/applications/com.ayugram.desktop.desktop \
+            --replace-fail 'DBusActivatable=true' '# DBusActivatable=true'
+        '';
+
+    meta = {
+      description = "A desktop Telegram client with great customization and Ghost mode";
+      license = lib.licenses.gpl3Only;
+      platforms = lib.platforms.all;
+      homepage = "https://github.com/AyuGram/AyuGramDesktop";
+      changelog = "https://github.com/AyuGram/AyuGramDesktop/blob/v${finalAttrs.version}/changelog.txt";
+      maintainers = with lib.maintainers; [ duvetfall ];
+      inherit mainProgram;
+    };
+  }
+)