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Adafruit_Learning_System_Guides
Programs and scripts to display "inline" in Adafruit Learning System guides
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InfluxDB
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rpi-rgb-led-matrix
Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
And this is the github https://github.com/adafruit/Adafruit_Learning_System_Guides/tree/main/Pi_Matrix_Cube
You mention how https://github.com/mikecann/disco-cube-daemon is broken, probably isn't but right in the header of their README it does say in bold "NOTE: Everything here is PROOF OF CONCEPT. I don't plan on supporting this code so if you want to use it then no problem but use it at your own risk.".. so you really need to take the time to read the source code for yourself, these are big libraries and cannot expect people r/learnpython to go through each line for you explaining what each thing does....
I found this https://github.com/hzeller/rpi-rgb-led-matrix, this provides python scripts. Please read through them, and then ask specific questions at each step. If python just looks like gobldegock, I suggest you go through some basic python tutorials docs.python.org has a tutorial page, and no you don't have to complete the whole think just read everything about built-ins and basic syntax (for, if, def, else, etc).