72c8ed0389
There's a circular dependency to systemd via cryptsetup and lvm2 (systemd -> cryptsetup -> lvm2 -> udev=systemd). However, cryptsetup only really needs the devmapper component shipped with lvm2. So build `pkgs.cryptsetup` with a lvm2 that doesn't come with udev.
*** 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.