Ask HN: Ideas for projects like Etcd, traefik

I've always wanted to tackle some systems problems and develop an open source project similar to the likes of etcd, traefik, etc.

My goals are:

- Tackle distributed systems / systems problems, maybe something like a middleware which transparently solves a problem. Something like etcd, traefik, leveldb, redis, memcache, sqlite, etc.

- Grow my large-scale design skills

- Develop a small but thriving community of users who really enjoy the software

I understand there are lots of ideas for direct consumer facing software, but could anyone point me towards an unfulfilled niche in "distributed systems software"?