feat: minimal working flake

Author: li

flake.nix

@@ -0,0 +1,7 @@
+{
+  description = "Composable Nix Modules";
+  outputs = _: {
+    importAtom = import ./src/core/importAtom.nix;
+    core = import ./src/core/mod.nix;
+  };
+}