It's worth reinventing the wheel for the purpose of learning those low-level bits, if that's something you want to learn. For example, I feel like every week I

It's worth reinventing the wheel for the purpose of learning those low-level bits, if that's something you want to learn. For example, I feel like every week I see a new NES or Gameboy emulator posted on /r/rust The nice thing about well-solved problems in libraries is that you don't have to learn how to write those things if you don't want to