The new audio effects are only built for RP2350s now (so Pico 2 will work) but someone has had success compiling it into the RP2040 build. I doubt the Bluefruit has the horsepower.
The main 2040 problem is build space but maybe we can get a subset in there.

As with last year I have no specific goals for this next year, except to hopefully spend more time on my own projects that for various reasons ended up sitting last year.

And maybe like years past some random request will catch my interest 😀

That looks amazing. I've been thinking of mapping tiny LEDs I have on a Lego tree and while this may be overkill, why not! Or I need a lot more patience to add some more LEDs.

It is on my todo list to write a tutorial but docs.circuitpython.org/en/stable/sh... and docs.circuitpython.org/en/stable/sh... give the APIs to the two areas that have code so far and basic examples.

It has been a while since I bought any but this category (www.digikey.com/en/products/...) on Digikey had a lot of options if you hadn't searched it already.

That looks fun. I've been having fun adding audio effect processing to #circuitpython lately if you want any post-processing.