Design for a permanent Controller Wallbox (DigOcta based)?

I am working on a modular lighting panel system for permanent installations. For the controller-and-power-box I need some generic, clean and clear design.
I found some examples on Reddit (sorry didnt get your names guys) that look like what I am trying to achieve.
Though I am pretty experienced with all this (W)LED stuff, I hardly can get over this “quick n dirty” workflow (guess whats box is mine ^^). :grimacing:
Ofc such a box is no big secret, but I look for sth. like a “building manual for a 10 year old”, with proper description what parts how to assemble in what procedure (a generic design though).
Details like specific requirements regarding type and amount of LEDs, power and voltage of PSU(s) are more or less irrelevant at this point, I am more interested in some circuit diagrams, BOMs, building instructions etc.
Or just share your tips, experiences and own examples on how to design and build these controller boxes.
Looking forward to build some prototype with what I find here :fist_right: :fist_left:
Cheers
quan