The few things I have written always have the configs in here, seems like the polite thing to do without cluttering up home for the end user, but I can't help laugh when I look my own system and apps are storing gigabytes of data in there.
It's not really a config folder anymore, more a misused general store for files.
There's some cool NASA concepts around for what is basically a household microwave with wheels that melts the regolith into a ceramic type material.
https://space.stackexchange.com/questions/35319/can-you-real...