Contributing to open source electronics

I’m trying to figure how to get starting contributing to open source electronics/embedded systems. I’m a professional embedded engineer and I would really like to get started contributing to open source embedded projects. I mostly have firmware experience but I can also do some board design layout. I’ve been looking around a bit though and I’m having a hard time finding/thinking of projects with bug trackers that I could go through, etc.

Are there any good resources for starting to contribute?