I created a GitHub organization which has a focus of creating software for a niche topic: Stoicism.
I’m not sure if anyone is familiar with it, but I guess you could say it’s a philosophy of living, not much different than Buddhism.
It’s a fun way to get experience, perhaps provide useful things for people, and contribute to open-source projects, together.
Currently, I’m focusing on the website: virtualstoics.github.io(needs responsive design) and plan on creating a community forum with the NodeBB software.
If you like the idea, and want to join/contribute, please let me know.
EDIT: @m1guelpf informed me of his service below. Here’s a link to instantly join the organization(anyone is free to join!)
Also, you do not need to have an interest in Stoicism, just a desire to build things, and to learn software development.