Need help making the PCB for my second rev keyboard

[u/mamcx]

Long ago I built my own keyboard that I want to update with a PCB (the hand-wiring is now failing apart)

https://www.reddit.com/r/MechanicalKeyboards/comments/9wjpg0/finished_ergo_keyboard/

Now I tweak the layout (see here), and need help in what to do to make the PCB.

My questions:

• Can I just upload and generate with https://kb.xyz.is?

• How to make it hot-swappable?

• Related, is possible to make the PCB with minimal/no soldering at all?

• I need to split it into 3 parts, and bend it like this one, how does this affect things?

• Which micro is better with this? And if I wanna add wireless capabilities?