
The built-in default for unknown MIME-Types is `text/plain` whereas the upstream default config changes it to `application/octet-stream`. By changing the default tpye, unknown files will be downloaded by browsers instead of being displayed.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at https://nixos.org/nixos and in the manual in doc/manual.