- $ nixos-rebuild switch
- error: The option `firefox' defined in `/etc/nixos/configuration.nix' does not exist.
- (use '--show-trace' to show detailed location information)
- building Nix...
- error: The option `firefox' defined in `/etc/nixos/configuration.nix' does not exist.
- (use '--show-trace' to show detailed location information)
- building the system configuration...
- error: The option `firefox' defined in `/etc/nixos/configuration.nix' does not exist.
- (use '--show-trace' to show detailed location information)