Nix cannot to connected to daemon socket

TLDR;

sudo chown -R user_name /nix

Updated @2024-12-08

!SHIT! The above answer is wrong!

It’s better not to change the permision of Nix Store by ourself.

First, try to check if the nix-daemon is stared:

sudo launchctl list | grep org.nixos

If not, start it:

sudo launchctl kickstart -k system/org.nixos.nix-daemon

Then try to use `nix run` to rebuild the system (if you don’t have `/run/current-system/` in your system.

nix run nix-darwin --extra-experimental-features "nix-command flakes" -- switch --flake /path/to/your/flake.nix

Important Notes

When anything wired happend, remember to check if new nix command has permitted with Full Disk access.