Update

home/packages.nix

@@ -1,7 +1,7 @@
 { pkgs, pkgs-unstable, try-cli, nix-direnv, ... }:
 
 let
-krita-custom = pkgs.callPackage ../packages/krita.nix { };
+krita-appimage = pkgs.callPackage ../packages/krita.nix { };
 enpass = pkgs.enpass.overrideAttrs (oldAttrs: rec {
     version = "6.11.13.1957";
     src = pkgs.fetchurl {
@@ -37,7 +37,7 @@ in
         gpu-screen-recorder # GPU screen recorder for Linux
         imv # Image viewer
         inkscape # Vector graphics software
-        krita-custom # Custom digital art software (from AppImage)
+        krita-appimage # Custom digital art software (from AppImage)
         libreoffice-fresh # Office suite
         lunar-client # Minecraft launcher
         mpv # Video player

packages/krita.nix

@@ -6,14 +6,14 @@
 
 let
     version = "6.0.1";
-    pname = "krita";
+    pname = "krita-appimage";
 
     src = fetchurl {
         url = "https://download.kde.org/stable/krita/${version}/krita-${version}-x86_64.AppImage";
         hash = "sha256-9732206aa6624e750e5b9152445fb544ea63dd1012582dfdd1a2d51520414d0a";
     };
 
-    appimageContents = appimageTools.extractType2 { inherit pname version src; };
+    appimageContents = appimageTools.extract { inherit pname version src; };
 in
 appimageTools.wrapType2 {
     inherit pname version src;
@@ -22,7 +22,7 @@ appimageTools.wrapType2 {
         install -m 444 -D ${appimageContents}/krita.desktop $out/share/applications/krita.desktop
         install -m 444 -D ${appimageContents}/krita.png $out/share/icons/hicolor/256x256/apps/krita.png
     '';
-
+ 
     meta = {
         description = "Digital painting and illustration application";
         homepage = "https://krita.org";