massive rewrite using flake-parts

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

pkgs/simp1e/default.nix

@@ -0,0 +1,39 @@
+{ lib, stdenvNoCC, fetchFromGitLab, python3, librsvg, xcursorgen }:
+
+stdenvNoCC.mkDerivation rec {
+  pname = "simp1e-cursors";
+  version = "20221103.2";
+
+  src = fetchFromGitLab {
+    owner = "cursors";
+    repo = "simp1e";
+    rev = version;
+    sha256 = "sha256-3DCF6TwxWwYK5pF2Ykr3OwF76H7J03vLNZch/XoZZZk=";
+    fetchSubmodules = true;
+  };
+
+  nativeBuildInputs = [ 
+    (python3.withPackages (ps: with ps; [ pillow ]))
+    librsvg
+    xcursorgen
+  ];
+
+  buildPhase = ''
+    patchShebangs .
+    HOME=$TMP ./build.sh
+  '';
+
+  installPhase = ''
+    install -dm 755 $out/share/icons
+    cp -dr --no-preserve='ownership' built_themes/* $out/share/icons/
+  '';
+
+  meta = with lib; {
+    description = "An aesthetic cursor theme for Linux desktops";
+    homepage = "https://gitlab.com/cursors/simp1e";
+    license = licenses.gpl3;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ natto1784 ];
+  };
+}
+