A script to implement painless Lets's Encrypt Certificate renewal for ubernauts. Just call it weekly via cron. It checks whether a Let's encrypt SSL cert is still valid and otherwise renews it.
Put it somewhere on your uberspace, eg. /home/$USER/scripts, either by cloning the repo or download the ZIP.
Make the .sh script executable (chmod +x)
call it @weekly via cron. Read https://wiki.uberspace.de/system:cron for further information.