if ! has nix_direnv_version || ! nix_direnv_version 2.4.0; then
    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.4.0/direnvrc" "sha256-XQzUAvL6pysIJnRJyR7uVpmUSZfc7LSgWQwq/4mBr1U="
fi

use flake