[creshal]

It's not like ~/.whatever has ever been used consistently:

- ~/.mozilla/firefox, but: ~/.thunderbird and ~/.pki/nssdb (gonna keep you on your toes!)

- Java defaults to .full.package.name (on top of using .java, .openjfx, and others)

- Fontconfig uses `fc-*` for its tools. Naturally, its config file used to be in ~/.fonts.conf.d before they finally accepted standard directories

- arandr, as the name implies, uses .screenlayout

- The sooner the .net ecosystem decides if it wants to use ~/.dotnet or ~/.mono, the better (humble suggestion: ~/..net)