If you’re looking for the best guide to install Lightning Network on a Raspberry Pi, then this is definitely the one you need.
If you have not played with the Lightning Network yet, consider having a look at this video which shows you step by step all the possibilities.
A great article describing the need and use of Watchtowers in Bitcoin Lightning.
Your guide to joining the Lightning Network
TakeTheTorch is a website where you can follow @hodlonaut’s #LNTrustChain.