Four steps to reproduce locally:

    cd $(mktemp -d)
    curl -O https://raw.githubusercontent.com/embedding-shapes/niccup/refs/heads/master/examples/quine/flake.nix
    curl -O https://raw.githubusercontent.com/embedding-shapes/niccup/refs/heads/master/examples/quine/build.nix
    nix build
    python -m http.server -d result 8000