Thank you too, mysterious giver of sats!
Received by my Bitcoin Core + Core Lightning + lnbits stack running on a crappy server in my basement.
I, and everyone else, have no idea who sent it and what it's for. But I guess I must have done something good.
This is beautiful.
This book is built around a set of quotes from seasoned Bitcoin devs, organized into topics such as Decentralization, Upgrades, Open Source, Scaling, and my favorite, When Shit Hits The Fan.
Try: 
