alyraffauf/nixcfg
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nixcfg/hosts/common/README.md

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common

Overview

Common modules for my nix hosts that aren't better expressed as options & flake outputs.

Declarative WiFi Connections

WiFi networks can be configured declaratiely in nixosModules/system/wifi.nix using config.networking.networkmanager.ensureProfiles.profiles, provided by nixpkgs.

nm2nix can generate nix code for all WiFi networks currently configured in /etc/NetworkManager/system-connections/ and /run/NetworkManager/system-connections with the following command:

sudo su -c "cd /etc/NetworkManager/system-connections && nix --extra-experimental-features 'nix-command flakes' run github:Janik-Haag/nm2nix | nix --extra-experimental-features 'nix-command flakes' run nixpkgs#nixfmt-rfc-style"

\[Secrets

In short,

  1. Manually configure the WiFi network on one device.
  2. Export configuration to nix with nm2nix.
  3. Add secrets to secrets/wifi.age as variables (e.g. MYPSK=1234567890)
  4. Edit the code generated by nm2nix to reference $MYPSK instead of directly declaring the WPA password.
  5. Commit and push changes.
  6. Rebuild hosts as required to propogate your new WiFi configuration.