Not sure if what you want is pre-built, but I discovered Monster "Smart Illuminessence" starter kit with three lightbar pods available cheap OTC locally, likely liquidation or clearance but brand new.
It is WiFi/app. controllable though I don't plan to do so. The controller has buttons for manual control of colours/motion, and a limited set of colour sequencing which is quite nice. There are definitely addressable LEDs inside each "segment" pod.
I don't plan to open anything up to try to reverse engineer or modify, in this case; it is good as is.
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