macOS Sequoia breaks existing Lix installations

macOS Sequoia changed the user ID ranges used by the system, such that some of the IDs for existing Nix build users got used by the system instead.

To fix this on your system, download the latest Lix installer (FIXME, add instructions) and then run:

(fixme add command once installer is released)

You may run this before or after updating to Sequoia; it just migrates the user IDs used by Lix to a range recommended by Apple.

Relevant links:

• https://git.lix.systems/lix-project/lix-installer/issues/24
• https://github.com/NixOS/nix/pull/11075
• https://github.com/DeterminateSystems/nix-installer/issues/1115