Obsidian Systems is excited to bring IPFS support to Nix

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It is something like this. I’ll try to clean my actual impl up and publish it on github

{ name, nodes, lib, ... }:
{
  networking.hostName = name;
  # Using avahi for now for mDNS; however I want to switch to networkd for some
  # boxes this will expose each node as   ${networking.hostName}.local aka
  # ${name}.local
  services.avahi = {
    enable = true;
    nssmdns = true;
    ipv6 = true;
    publish = {
      enable = true;
      domain = true;
      addresses = true;
      userServices = true;
      workstation = true;
    };
  };

  nix = {
    distributedBuilds = true;
    # have a binary cache public key for each node with nix-store --generate-binary-cache-key
    binaryCachePublicKeys = lib.mapAttrsToList (builtins.readFile (./. + "${node}.pub")) nodes;
    binaryCaches = lib.mapAttrsToList (name: node: "http://${name}:${toString node.config.nix-serve.port}") nodes;
    buildMachines = lib.mapAttrsToList (
      name: node: {
        hostName = name;
        sshUser = "arian";
        sshKey = "/root/.ssh/id_ed25519";
        system = "x86_64-linux"; # TODO paarameterize
        supportedFeatures = node.config.nix.systemFeatures;
        maxJobs = node.config.nix.maxJobs;
      }
    ) nodes;
  };


  services.nix-serve.enable = true;
}
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