Google IDX IDE - Python Development config file.

div.nix

# To learn more about how to use Nix to configure your environment
# see: https://developers.google.com/idx/guides/customize-idx-env
{ pkgs, ... }: {
  # Which nixpkgs channel to use.
  channel = "stable-24.05"; # or "unstable"
  # Use https://search.nixos.org/packages to find packages
  packages = [
    pkgs.python311
    pkgs.python311Packages.pip
  ];
  # Sets environment variables in the workspace
  env = { };
  idx = {
    # Search for the extensions you want on https://open-vsx.org/ and use "publisher.id"
    extensions = [
      "ms-toolsai.jupyter"
      "ms-python.python"
      "charliermarsh.ruff"
      "KevinRose.vsc-python-indent"
      "ms-python.debugpy"
      "ms-toolsai.jupyter-keymap"
      "ms-toolsai.jupyter-renderers"
      "ms-toolsai.vscode-jupyter-cell-tags"
      "ms-toolsai.vscode-jupyter-slideshow"
      "saoudrizwan.claude-dev"
      "codezombiech.gitignore"
      "luma.jupyter"
      "tamasfe.even-better-toml"
      "usernamehw.errorlens"
      "streetsidesoftware.code-spell-checker"
    ];
    # Enable previews
    previews = {
      enable = true;
      previews = {
        # web = {
        #   # Example: run "npm run dev" with PORT set to IDX's defined port for previews,
        #   # and show it in IDX's web preview panel
        #   command = ["npm" "run" "dev"];
        #   manager = "web";
        #   env = {
        #     # Environment variables to set for your server
        #     PORT = "$PORT";
        #   };
        # };
      };
    };
    # Workspace lifecycle hooks
    workspace = {
      # Runs when a workspace is first created
      onCreate = {
        create-venv = ''
          python -m venv .env
          source .env/bin/activate
          pip install poetry
        '';
      };
      # Runs when the workspace is (re)started
      onStart = {
        # Example: start a background task to watch and re-build backend code
        # watch-backend = "npm run watch-backend";
        start_virtual_env = "source .env/bin/activate";
      };
    };
  };
}