feat(python): Add uv config

python/uv/flake.nix

@@ -0,0 +1,37 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, nixpkgs-unstable, flake-utils }:
+  flake-utils.lib.eachDefaultSystem (system: let
+    pkgs = import nixpkgs {
+      inherit system;
+      config.allowUnfree = true;
+    };
+    pkgs-unstable = import nixpkgs-unstable {
+      inherit system;
+      config.allowUnfree = true;
+    };
+
+    mkShell = pkgs.mkShell.override {
+      stdenv = pkgs.stdenvAdapters.useMoldLinker pkgs.stdenv;
+    };
+  in {
+    devShells.default = pkgs.mkShell {
+      packages = (with pkgs; [
+        # python312Full
+      ]) ++ (with pkgs-unstable; [
+        uv
+      ]);
+
+      # Stop uv from downloading Python binaries automatically if needed.
+      # UV_PYTHON_DOWNLOADS = "never";
+
+      # ImportError: libstdc++.so.6: cannot open shared object file: No such file or directory
+      LD_LIBRARY_PATH = "${pkgs.stdenv.cc.cc.lib}/lib";
+    };
+  });
+}