For those curious, here is an I2P guide from 2 years ago.

https://lemmy.ml/post/1295873

You have a point, but to be honest my only concern for this project would be hiding from the ESA.

Can’t tell you right now.

PHP can be old but it is still taught at schools, are there other languages I should use?

There are unofficial search plugins for qBitorrent here and they work well

https://github.com/qbittorrent/search-plugins?tab=readme-ov-file

But I prefer using torrents-csv.com

It attempts to show events that TPB AFK didn’t show perfectly like the reasons of creating the website or other events like raids of other file sharing website at the time