Hello lovely Nix community I wonder how can I change setting (like firewall settings or configs from applications) in my configuration.nix without internet? If I do it without the internet it errors out because it can’t fetch some nix urls. So how to use nixos fully when I am offline? Thanks in ad…

Specifically, you probably want: nixos-rebuild switch --option substitute false Depending on exactly what your config is, this may only work if you haven’t had any garbage collection since, and of course only if none of your config requires new things from the internet. For changes to the firewall…

NixOS without internet

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badcold February 21, 2025, 12:25pm 2

This discussion has helped me in the past:

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