Another vote for a bug bivy and tarp. In my case it’s a shaped tarp (currently a Cirriform from Yama but I’ve also used mids from MLD and SMD). I like the simplicity of just dropping the bivy under a tree or nestled in between some rocks most nights but I can enjoy 360° protection when needed.
I don’t hang out in camp much. If I liked to linger I might be motivated to set up (and carry) a more complex tent.
matthew