Adding nixos-apple-silicon channel after fresh install

[EdvardSire]

I just did a complete reinstall and wanted to start following the apple-silicon-support channel instead of using the local files. I'm unsure whether or not this issue belongs here.

1. Install with ISO
2. Add small changes to /etc/nixos/configuration.nix
3. nixos-rebuild switch
4. Attempt to add channel:

[root@nixos:~]# nix-channel --list 
nixos https://nixos.org/channels/nixos-unstable

[root@nixos:~]# nix-channel --add https://github.com/tpwrules/nixos-apple-silicon/archive/main.tar.gz apple-silicon-support


[root@nixos:~]# nix-channel --list
apple-silicon-support https://github.com/tpwrules/nixos-apple-silicon/archive/main.tar.gz
nixos https://nixos.org/channels/nixos-unstable

[root@nixos:~]# nix-channel --update apple-silicon-support
this derivation will be built:
  /nix/store/0mx0cpzrn9qr4z73l1b9m4zg119inkc8-apple-silicon-support.drv
building '/nix/store/0mx0cpzrn9qr4z73l1b9m4zg119inkc8-apple-silicon-support.drv'...
error: '/nix/var/nix/profiles/per-user/root/channels/nixos' is not a symlink

How should i resolve this? From what I understand I can not run a nix-channel --update, the solution I'm finding online, because of #248 and systemd.
Best regards

[tpwrules]

The latest release should be fixed for recent nixpkgs. I am not sure why you might get this error off the top of my head, but upgrading is safe now.