On your server, create a folder and add the two files below that are attached to this Gist:
```
mkdir ~/certbot-porkbun-dns
cd ~/certbot-porkbun-dns
```

Pull image:
```
docker compose pull
```

Set a domain in `.env` that you'll want to generate a certificate for, then run:
```
docker compose up
```

Wait a minute and it should generate.

> Use the provided `fullchain.pem` and `privkey.pem` files that are generated.