Flake: add nixpkgs patches

nixpkgs-patches/pr390197.patch

@@ -0,0 +1,25 @@
+From 6c12682c6d2e822dcabf3a016124de0a86214053 Mon Sep 17 00:00:00 2001
+From: K900 <me@0upti.me>
+Date: Sat, 15 Mar 2025 20:33:34 +0300
+Subject: [PATCH] kdePackages.plasma-workspace: wrap with --inherit-argv0
+
+kcminit_startup checks its own argv[0] to determine what mode to run in.
+
+Fixes #390179.
+---
+ pkgs/kde/plasma/plasma-workspace/default.nix | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/pkgs/kde/plasma/plasma-workspace/default.nix b/pkgs/kde/plasma/plasma-workspace/default.nix
+index a5b80f8ab351f6..b5a8b5d3657f6c 100644
+--- a/pkgs/kde/plasma/plasma-workspace/default.nix
++++ b/pkgs/kde/plasma/plasma-workspace/default.nix
+@@ -62,6 +62,8 @@ mkKdeDerivation {
+     gpsd
+   ];
+ 
++  qtWrapperArgs = [ "--inherit-argv0" ];
++
+   # Hardcoded as QStrings, which are UTF-16 so Nix can't pick these up automatically
+   postFixup = ''
+     mkdir -p $out/nix-support