update maple font

pkgs/maple-mono-variable.nix

@@ -0,0 +1,34 @@
+{
+  lib,
+  stdenv,
+  unzip,
+  fetchurl,
+}:
+stdenv.mkDerivation rec {
+  pname = "MapleMono-Variable";
+  version = "7.3";
+  src = fetchurl {
+    url = "https://github.com/subframe7536/Maple-font/releases/download/v${version}/${pname}.zip";
+    sha256 = "1wfgfginnrqk2ppiyxb6jbvflha9kx0yqj84mbw04c923mav56z0";
+  };
+
+  # Work around the "unpacker appears to have produced no directories"
+  # case that happens when the archive doesn't have a subdirectory.
+  sourceRoot = ".";
+  nativeBuildInputs = [ unzip ];
+  installPhase = ''
+    find . -name '*.ttf'    -exec install -Dt $out/share/fonts/truetype {} \;
+    find . -name '*.otf'    -exec install -Dt $out/share/fonts/opentype {} \;
+    find . -name '*.woff2'  -exec install -Dt $out/share/fonts/woff2 {} \;
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/subframe7536/Maple-font";
+    description = ''
+      Open source Nerd Font CN unhinted font with round corner and ligatures for IDE and command line
+    '';
+    license = licenses.ofl;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ oluceps ];
+  };
+}