211d94d70b
According to https://github.com/NixOS/nixpkgs/issues/147599#issuecomment-1272286679 the bug that prevented this UMask directive from working has been fixed in systemd, so it should be safe to use now. This stops paperless-ngx from making everything world-readable on disk, but it does not change permissions of any files previously created.
*** 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.