[root@ip-192-168-1-153:~]# nixos-version --hash
c06f5302f63af92c9ba0e10401f366e0c7bd7d49

[root@ip-192-168-1-153:~]# nixos-option nix.package
Value:
"/nix/store/a6zdbsflqj152v16l8xds18yakckls2p-nix-2.1.1"

Default:
"/nix/store/a6zdbsflqj152v16l8xds18yakckls2p-nix-2.1.1"

Example:


Description:

"This option specifies the Nix package instance to use throughout the system.\n"

Declared by:
  "/nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/services/misc/nix-daemon.nix"

Defined by:
  "/nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/services/misc/nix-daemon.nix"


[root@ip-192-168-1-153:~]#