I wanted to use acme.sh (https://github.com/Neilpang/acme.sh) to generate my internal SSL certificates with Let's Encrypt using the ACME protocol. I also wanted to automate the renewal said certs and use them with the web UI (lighttpd) and with the syncthing UI on my embedded N4F system. I've summarized my method below. The rough procedure is as follows:

• Installing packages on embedded system
• Meeting prereqs for acme.sh
• Running acme.sh and scheduling with cron
• Importing the certs for the web UI and syncthing