After I got my first vintage computer for my collection, I wanted to see what modern add-ons are available. This took me on a road of "collecting" open source projects from various forums and Facebook groups.

  8BitHardware is my pet project gathering all of the open source projects I managed to find for Atari, Commodore 64 and Spectrum ZX, 8-bit computers in one place, so that anyone with a bit of electronics knowledge can build their own add-ons.
Since this is still work in progress, only ZX Spectrum, Atari and some C64 projects are listed here. To see more of Commodore projects, please also check here.