ferdium: add update script

pkgs/applications/networking/instant-messengers/ferdium/default.nix

@@ -1,4 +1,4 @@
-{ lib, mkFranzDerivation, fetchurl, xorg }:
+{ lib, mkFranzDerivation, fetchurl, xorg, nix-update-script }:
 
 mkFranzDerivation rec {
   pname = "ferdium";
@@ -11,6 +11,12 @@ mkFranzDerivation rec {
 
   extraBuildInputs = [ xorg.libxshmfence ];
 
+  passthru = {
+    updateScript = nix-update-script {
+      extraArgs = [ "--override-filename" ./default.nix  ];
+    };
+  };
+
   meta = with lib; {
     description = "All your services in one place built by the community";
     homepage = "https://ferdium.org/";

pkgs/applications/networking/instant-messengers/franz/generic.nix

@@ -28,9 +28,10 @@
 
 # Helper function for building a derivation for Franz and forks.
 
-{ pname, name, version, src, meta, extraBuildInputs ? [] }:
-
-stdenv.mkDerivation rec {
+{ pname, name, version, src, meta, extraBuildInputs ? [], ... } @ args:
+let
+  cleanedArgs = builtins.removeAttrs args [ "pname" "name" "version" "src" "meta" "extraBuildInputs" ];
+in stdenv.mkDerivation (rec {
   inherit pname version src meta;
 
   # Don't remove runtime deps.
@@ -91,4 +92,4 @@ stdenv.mkDerivation rec {
       --suffix PATH : ${xdg-utils}/bin \
       "''${gappsWrapperArgs[@]}"
   '';
-}
+} // cleanedArgs)