Its only fine when the meat industry does it I guess?

I’m kinda confused here, so he slaughtered the peacocks like you would a chicken, and then ate them? What did he actually do that warrants being arrested?

I can’t think of a single open source / self hostable app that needed, or even had an option to deploy as a function. I have seen FaaS projects though, but they deploy to docker.

Soon according to wikipedia means 2067 to 2099