Auto renewing IRCd certs

I have decided to finally set up auto renewing certificates since Let's Encrypt are removing 1 their reminder emails, and this was way overdue anyway because it is very annoying to manually renew certificates even if it is every 2–3 months. My servers are already running a webserver, so in the past I have just shut that down temporarily to renew the certificate so port 80 would not be in use.…