Rpis are great for always on things with low power use but not if you have many low power use things. But you would really be feeling that 1GB of ram, and microSDs kind of suck to run off of. I would honestly save the $25 and put it toward one of the $100 tiny/mini/micros.

I would not steer you away from an RPI if you don’t have one, they are very useful and fun, but if you’re looking for learning about self hosting, you’re probably going to end up getting something more powerful anyway