https://jeffbradberry.com/posts/2016/01/getting-started-with-lets-encrypt/
For anyone interested in this kind of thing.
The author makes it very clear each step he took to get everything configured, and automated for future re-use.
Found via this very interesting analysis of the DeepMind AlphaGo AI:
https://medium.freecodecamp.org/explained-simply-how-an-ai-program-mastered-the-ancient-game-of-go-62b8940a9080
I already use letsencrypt at home.
We can't use it on the RW forums due to the way the hosting is setup.
I've been using le for a while. Funny story tho, I just had to re-do the config for it on my digital ocean vm... it was all kinds of broken. *sigh*