Certbot
From Wasya Wiki
use
certbot certonly -d <one domain>,<another domain> --nginx certbot run -d <one domain>,<another domain> --nginx -n --expand # nginx -s reload ## unneeded
certbot certonly --apache -d webdav2.wasya.co --http-01-port=8081
Troubleshoot
apt install python3-certbot-nginx -y