To add context, I’m the developer of this PCB and in no way affiliated/compensated by the seller. Selling is permitted by the license so that’s all cool. I do think you’re better off learning basic soldering if you really care about original carts and doing fully diy, but there is now an option for buying.
Thanks! Besides some other posts about this adapter on and some comments here and there on Reddit, I just post on Lemmy now.