But a8 scene lacks coders doing a PC tracker with understanding POKEY.
But isn't that the contradiction, the tracker is a higher level tool that (to the most part) should shield the user from the underlying complexities of the h/w?
With the C64 and NES the sound chips provide a closer model to what you'd find in a synth and so more accessible to musicians / sound engineers.
With Pokey they need to think differently and, I should imagine, not incentivized to exploit these lower level exploits of the h/w.
So my 5-cents would be that it's understandable why the scene doesn't attract as many new adopters as the others.