Lightpack VS FastLED

Any reason you decided to "reinvent the wheel" instead of using an existing solution like Prismatic or Hyperion?

github page https://github.com/psieg/Lightpack/releases/tag/5.11.2.31

I'm using something like this: https://www.aliexpress.us/item/3256801541807301.html (just an Arduino Nano clone with WS2811 LEDs). And with this software.

as far as I know, 2 method of ws2812 responding to a computer is by sound / audio reactive (WLED& prismatik) and ambient color lighting (prismatik). Other ambient color applications also available with relatively similar (more or less) feature to prismatik.

Looks like Lightpack is the operative software in use here.

I used the examples from here https://github.com/FastLED/FastLED/wiki/Multiple-Controller-Examples

Sweet. Then pretty much any arduino or other microcontroller would take care of what you need. The strips only take one output pin plus power and ground so just about everything will work for driving them. They act like a long shift register so the single pin is all that's needed to load the full strip with whatever patterns you want regardless of the length. You just have to tell it how many LEDs there are in total is all. Check out the FastLED library. You can learn more about it there and/or install the library in the IDE by pressing "ctrl shift I" for windows or "command shift I" for mac and search for it in the upper search area and install it right there. It comes with working examples too so all you would have to do is install the library, load one of the new example sketches that came with it, and probably edit the example to change the NUM_LEDS count to match what you're working with.