system/nixos/shared/tor-browser.nix

{ pkgs, ... }:

let
  data = import ../../data.nix;

  torBrowser = pkgs.tor-browser-bundle-bin.override {
    mediaSupport = true;
    pulseaudioSupport = true;
  };

  hostRunTorBrowser = pkgs.writeScriptBin "tor-browser" ''
    ${pkgs.socat}/bin/socat -d TCP-LISTEN:6000,fork,bind=192.168.7.10 UNIX-CONNECT:/tmp/.X11-unix/X0 &
    ${pkgs.xorg.xhost}/bin/xhost +
    ssh -X browser@192.168.7.11 tor-browser
    ${pkgs.xorg.xhost}/bin/xhost -
  '';

  clientRunTorBrowser = pkgs.writeScriptBin "tor-browser" ''
    PULSE_SERVER=tcp:192.168.7.10:4713 \
    XAUTHORITY="/home/browser/.Xauthority" \
    DBUS_SESSION_BUS_ADDRESS="" \
    DISPLAY=192.168.7.10:0.0 \
    ${pkgs.apulse}/bin/apulse ${torBrowser}/bin/tor-browser $@
  '';
in
{
  environment.systemPackages = [ hostRunTorBrowser ];

  hardware.pulseaudio = {
    enable = true;
    systemWide = true;
    support32Bit = true;
    tcp = {
      enable = true;
      anonymousClients.allowedIpRanges = [ "127.0.0.1" "192.168.7.0/24" ];
    };
  };

  networking = {
    firewall.allowedTCPPorts = [ 4713 6000 ];
    nat = {
      enable = true;
      internalInterfaces = [ "ve-browser" ];
      externalInterface = "wg0";
    };
  };

  containers.browser = {
    autoStart = true;
    privateNetwork = true;
    hostAddress = "192.168.7.10";
    localAddress = "192.168.7.11";

    config = { config, pkgs, ... }: {
      system.stateVersion = "23.11";
      services.openssh = {
        enable = true;
        settings.X11Forwarding = true;
      };

      users.extraUsers.browser = {
        isNormalUser = true;
        home = "/home/browser";
        openssh.authorizedKeys.keys = data.publicKeys.users.jan;
        extraGroups = [ "audio" "video" ];
        packages = [ clientRunTorBrowser ];
      };
    };
  };
}