As someone who suffers from carpal tunnel it would be nice if the engine was a bit cheaper so that a little automation could start early on. Something I liked about the idle clicker "Cookie clicker" was that mice for automated clicks were so cheap, so it was something I could get started on buying early!
That being said I really like this concept! I really liked the sounds effects you went with, they were satisfying! The art style is also cute and while simple, I think that's very fitting for an idle game like this!