The source code is available on GitHub. Development seems to have halted over a year ago. There still is some interest and potential contributors. But work seems uncoordinated at the moment. But even if nobody would pick this up again, it's still a very interesting project.
Hi! I'm Sinclair-Speccy/ReduxReloaded. Not sure what else there is to say but I'm devoted to getting old operating systems such as Yggdrasil Linux running (which I have already done) so it is nice to meet you all!