Only my own. A few with, hopefully, public interest:

Setup a k8s cluster + elastic with ansible https://github.com/ggeorgovassilis/setup-k3s-ansible

A collection of linux scripts, eg. remote controlling a wifi power plug, change sound volume in linux with touchpad gestures and more https://github.com/ggeorgovassilis/linuxscripts

A JSP implementation (with tag files!) based on an interpreter instead of a compiler https://github.com/ggeorgovassilis/fauxjsp

A Super Star Strek re-implementation https://github.com/ggeorgovassilis/superstartrek

A library that maps Java interfaces on REST services https://github.com/ggeorgovassilis/spring-rest-invoker

Mainly because I needed/wanted/could and there wasn't already something around that did the job.