if ! has nix_direnv_version || ! nix_direnv_version 3.0.4; then source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.0.4/direnvrc" "sha256-DzlYZ33mWF/Gs8DDeyjr8mnVmQGx7ASYqA5WlxwvBG4=" fi watch_file .direnv/selected-shell if [ -e .direnv/selected-shell ]; then use flake .#$(cat .direnv/selected-shell) else use flake fi