-`ACME_API` (default: https://acme-v02.api.letsencrypt.org/directory): set this to https://acme.mock.director to use invalid certificates without any verification (great for debugging).
ZeroSSL might be better in the future as it doesn't have rate limits and doesn't clash with the official Codeberg certificates (which are using Let's Encrypt), but I couldn't get it to work yet.
-`ENABLE_HTTP_SERVER` (default: false): Set this to true to enable the HTTP-01 challenge and redirect all other HTTP requests to HTTPS. Currently only works with port 80.