I need to enable SSL for Rocket.Chat. Here I found that I can do it with Caddy. I have never used Caddy before. Personal license here says Caddy is free only for non-commercial use. And Caddy has open source too under Apache License 2.0 here.
I am not sure whether commercial license is needed for running Rocket.Chat behind a Caddy Reverse Proxy. Please point out if it is too naive.