There are 3 repositories under lewd topic.
Image Viewer and Endless Scroll userscripts for Gelbooru and various other boorus
Hentaihunter - How to steal your Doujinshi easily
hentai game manager, mostly for f95, but might add other sites later
A Mobile App That Gives You Nekos. (This app is meant to support Nekos.Life website)
Trying to make my own Python(?) database for F95zone.
The lewdest Telegram Bot. Uses Nekos.life