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{#User_How_to_install_NGIpkgs_using_a_flake_nix}

How to install NGIpkgs using a flake.nix?

You can insert this input in your flake.nix:

inputs.NGIpkgs.url = "github:ngi-nix/ngipkgs";

To avoid building dependencies of NGIpkgs' packages and services, you may ask users of your flake.nix to enable NGIpkgs' public build cache, by inserting this in your flake.nix:

nixConfig = {
  extra-substituters = [ "https://ngi.cachix.org" ];
  extra-trusted-public-keys = [ "ngi.cachix.org-1:n+CAL72ROC3qQuLxIHpV+Tw5t42WhXmMhprAGkRSrOw=" ];

If you want to accept such configuration from flake.nix automatically, you can add this setting in your NixOS configuration:

nix.settings.accept-flake-config = true;

If, when prompted, you trusted permanently that nixConfig, you can still revert your trust by editing a file usually located at ~/.local/share/nix/trusted-settings.json.