Dont want to be rude or start a fight
But it seems everyone want some this or that, and Kirill seems to be under some pressure ??
Keep this project simple, if people are not happy take a pause ... take some distance ... slowly you're been pushed away from your original idea, i consider myself lucky to have shown this project to a friend, he bought a 3478a and he's happy with it, want to find a second one ...
The added bonus is a gift from a hard work.
The buzzer idea may have been a bad one, and having multiple code fork, will mess up everything, unless you take no reponsability and put / add some warnings but it will be a mess in the end
Every one can understand code constraints / code size / and hardware limits too.
Not on eevblog, but i saw some free designs and codes dissapearing lately because of what can happen when people dont understand ... push things to a limit.