hotswap_pcb_generator VS iamb-manuform

I'm guessing it's this: https://github.com/50an6xy06r6n/hotswap_pcb_generator

I've did a lot of Googling, and I saw either lots of "here's how to add a RGB strip" or "it's hard and isn't worth it" on the subject of adding RGB SMD to a custom keyboard. I've built a keyboard before, Keebio Sinc, but that one supported a single color LED. Now I was printing a small keyboard made from this ( https://github.com/50an6xy06r6n/hotswap_pcb_generator ) and it had me thinking, how hard is it to add RGB LEDs to a similar design. I have ideas in my mind of how I would go about making room for adding the SK6812 MINI-E, I honestly just have no experience with ProMicros or in what ways to connect these LEDs to a ProMicro. I know I found many examples of adding the code to control the LEDs in the config, but I wouldn't know where to begin with wiring it since mostly everyone uses custom bought PCBs or LED strips.

Thank you :) It is completely custom but you can find all the 3d printing files and firmware in my github repository.

But just as a little side note, i also code a lot since i work as a software engineer and i also have a lot of hobby projects and i built my keyboard and layout specifically with that in mind. I placed all the brackets and symbols conveniently in a separate layer (meaning you get a different key if you hold down a modifier, in my case the keys on the thumb cluster). If you think about it, you really don't use numbers all that often when writing code and even if you do, it's super easy to just hold one of those modifiers to get a number. If you are comfortable reading code, maybe you could take a look at my layout config, i think it will be pretty easy to understand how all the symbols and numbers etcetera work.