perhaps look at things like Bela... (https://bela.io)
and if you're interested in eurorack, Bela Salt/Pepper, Terminal Tedium, Qubit Nebulae.
these are based on microcomputer, which are much more powerful (and more memory) than micro-controllers. you can use things like CSound, Supercollider or Pure Data on them.
they have their disadvantages e.g. boot times, heat, power consumption.
but might be more suitable if you have 'ambitious' plans
we are lucky to have many choices these days, so its just a matter of picking the right tool for the job.