I have a box full of film gear and development equipment because, one day, I want to hang a picture of my kids on the wall that I _made_. My photo, on film I developed, printed manually by my hand, hung in a frame I built. I'll get to it some day!
The idea of building a camera like this tickles me the same way. It's fun!
I've done that and I recommend it.
In fact I recommend doing that for EVERYTHING you can! You don't need to do it more than once in your life but it's worth going through the actual process to learn.
That being said I also have a FujiFilm Insta to print polaroid size photos for the fridge or to give to guests.
Those though are 2 different processes, one is about learning the other about convenient usage.