flake.nix

{
  inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; };

  outputs = { nixpkgs, ... }:
    let
      forAllSystems = function:
        nixpkgs.lib.genAttrs [ "x86_64-linux" "aarch64-darwin" ]
        (system: function nixpkgs.legacyPackages.${system});
    in {
      devShells = forAllSystems (pkgs: {
        default = pkgs.mkShell {
          packages = with pkgs; [ poetry python3 nodePackages.pyright ];

          LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [ pkgs.stdenv.cc.cc ];

          # Put the venv on the repo, so direnv can access it
          POETRY_VIRTUALENVS_IN_PROJECT = "true";
          POETRY_VIRTUALENVS_PATH = "{project-dir}/.venv";

          # Use python from path, so you can use a different version to the one bundled with poetry
          POETRY_VIRTUALENVS_PREFER_ACTIVE_PYTHON = "true";
        };
      });
    };
}