Try flake

flake.nix

@@ -0,0 +1,46 @@
+{
+  inputs = {
+    nixpkgs = {
+      url = "github:NixOS/nixpkgs/nixos-22.05";
+    };
+    flake-utils = {
+      url = "github:numtide/flake-utils";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    ...
+  }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {};
+      image = pkgs.dockerTools.pullImage {
+        imageName = "devkitpro/devkitppc";
+        imageDigest = "sha256:d88e21c1a7b5f8070ba7a15aa892e395f118ded9803b0f8223a3d29ba279fff3";
+        sha256 = "nVtz/9mbYveKbvTMj/39EzND7qiLkjBHfqSOgT6SBUY=";
+        finalImageName = "devkitpro/devkitppc";
+        finalImageTag = "20220821";
+      };
+    in {
+      devkitPPC = pkgs.stdenv.mkDerivation {
+        name = "devkitPPC";
+        src = import ./extract-docker.nix pkgs image;
+        nativeBuildInputs = [ pkgs.autoPatchelfHook ];
+        buildInputs = [
+          pkgs.stdenv.cc.cc
+          pkgs.ncurses5
+          pkgs.expat
+          pkgs.xz
+        ];
+        buildPhase = "true";
+        installPhase = ''
+      mkdir -p $out
+      cp -r $src/{devkitPPC,libogc,portlibs,tools,wut} $out
+      rm -rf $out/pacman
+    '';
+      };
+    });
+}