install: nix examples (draft)

install/nix/hydro.nix

@@ -0,0 +1,16 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.stdenv.mkDerivation {
+  name = "hydro-0.0.0";
+  system = "x86_64-linux";
+  #TODO install from cache
+  src = ../../.yarn/cache;
+  unpackPhase = "ls $src";
+
+  meta = {
+    description = "Hydro";
+    homepage = https://hydro.js.org/;
+    maintainers = [ "undefined <i@undefined.moe>" ];
+    platforms = [ "x86_64-linux" ];
+  };
+}