Second buildroot as the way to go. This is what I use to build systems for single application touchscreen HMIs. It's dead simple too, unless you're messing with a custom kernel config and/ or using obscure hardware without ready made device tree blobs.
JBeamo
joined 1 month ago
"Bang-Bang", the simplest feedback controller in control theory.
Is you don't mind, I would be very interested in written formats.