Add yazi custom shell plugin

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/yazi/plugins/custom-shell/default.nix

@@ -0,0 +1,20 @@
+{ pkgs, ... }:
+# AUTO-UPDATE: nix-update --flake --version=branch=main yazi-plugin-custom-shell
+pkgs.stdenv.mkDerivation rec {
+  pname = "custom-shell";
+  version = "0-unstable-2025-06-07";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "AnirudhG07";
+    repo = "custom-shell.yazi";
+    rev = "b04213d2f4ca6079bef37491be07860baa8264b9";
+    hash = "sha256-hJVFZvcHgcjmcwUUGs1Q668KjeLSCEVuAhAD1A8ZM90=";
+  };
+
+  phases = [ "installPhase" ];
+
+  installPhase = ''
+    mkdir -p $out
+    cp $src/main.lua $out
+  '';
+}