Setting a specialisation as the default systemd boot entry

[fsbof]

Is there a method to set a specialisation in NixOS as the default systemd boot entry when using Lanzaboote? I would normally do this by modifying loader.conf but since enabling Lanzaboote this contains 'default nixos-*'

[nixos-discourse]

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/setting-boot-labels-with-system-nixos-label-systemd-and-secure-boot/54285/3