This morning I moaned about how there should be a parameterized design for modular & stackable ESP/Arduino/RaspberryPi cases.
Only a couple hours later and an entire project has formed around the idea and several people started working on it. Check out our humble beginnings:
https://github.com/muesli/modular-case/pull/1
Thanks to @Chaos_99 @nin @ericbuijs for sharing all the enthusiasm and putting so much work into it! This is going to be great!