I probably didn't state my problem well. The acme.sh worked great until the author sold it. The bash scriot now has 666 open issues on github. It looks hopeless. I can't make the acme.sh fallback hook to letencrypt work. As I stated that is not your problem. What I do need know is the best way to switch to certbot.
Centos 7 initially had some issue with certbot but there is now a "snap" package to install. I want to rid myself of acme.sh and switch to certbot.
My question is how do I go about making the change? There are procedures for an initial installation, but in this case I already have been issued Letsencrypt certs so I am sort of starting with certbot in the middle of the workflow if that makes sense.
I assume acme.sh has a cron entry that I need to remove. Anything else?