I don't think that the software itself is the hardest part. I think the proper OPSEC in all parts of the process (hosting, finding mods, finding first customer

I don't think that the software itself is the hardest part. I think the proper OPSEC in all parts of the process (hosting, finding mods, finding first customers,... ) is much harder, and cannot be really open-sourced. But of course I have 0 experience in running a darknet website.