Migrate to snowfall lib

packages/repalette/default.nix

@@ -0,0 +1,31 @@
+{ lib, pkgs, fetchFromGitHub, makeWrapper, stb }:
+let stdenv = pkgs.llvmPackages.stdenv;
+in stdenv.mkDerivation rec {
+  pname = "repalette";
+  version = "849e1857cc985968c5dd08377fff27b258931937";
+
+  src = fetchFromGitHub {
+    owner = "ziap";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-Q86W9/xwFjViIyvnCQfwyQjzrfC122+KK6A3mwJPXOg=";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  makeFlags = [ "CC=${stdenv.cc.targetPrefix}cc" ];
+
+  configurePhase = ''
+    cp ${stb.src}/stb_image.h stb_image.h
+    cp ${stb.src}/stb_image_write.h stb_image_write.h
+  '';
+
+  buildPhase = ''
+    make ${pname}
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    mv repalette $out/bin
+  '';
+}