PKG Deploy (https://www.pkgdeploy.com) - More than a few times I have wanted to create either RPM or DEB packages but the barrier to entry always seemed rather high.
Then while conducting interviews with what recruiters were calling senior engineers it became quite apparent that many people will still manually deploying code using a bunch of manual commands. Something packages are good for.
So I decided to start creating a way to make Linux packaging easier. I'm not sure if the idea has legs as people move more and more towards containers and serverless architecture but it's been refreshing to build something for myself.
It's been a long time since I've used it, but you may be interested in https://github.com/jordansissel/fpm if you haven't seen it before.