I'm sure there's an answer, I just don't see it in an era where so much of the scaffolding that used to take a village can be gotten for your own pet project. And often for free[-tier].The only open-source product I use that might seem fun to contribute to is Home Assistant. All the other ones I use clearly have plans to monetize (n8n, Hermes, Linux, etc). So I'd just be giving free labor.