Boot NixOS into chromium kiosk (tested on NixOS 14.04)

kiosk-chromium.nix

    services.xserver = {
      enable = true;
      monitorSection = ''
        Option   "NODPMS"
      '';
      serverLayoutSection = ''
        Option   "BlankTime" "0"
        Option   "DPMS" "false"
      '';
      displayManager.auto.user = "guest";
      displayManager.auto.enable = true;
      displayManager.slim.enable = false;
      displayManager.xserverArgs = [ "-nocursor" ];
      desktopManager.default = "chromium";
      desktopManager.session = [{
        name = "chromium";
        start = ''
          # dont blank the screen after 5min
          xset dpms force on
          xset -dpms &
          xset s noblank &
          xset s off &

          # empty i3 config to shutup wizard
          mkdir -p /home/guest/i3
          touch /home/guest/.i3/config

          # dont allow chromium to complain
          sed -i 's/"exited_cleanly": false/"exited_cleanly": true/' /home/guest/.config/chromium/Default/Preferences || true

          sleep 5;

          # start browser
          while true; do ${pkgs.chromium}/bin/chromium --incognito --touch-events --disable-translate --kiosk http://192.168.1.2:8080/; done
        '';
      }];
      windowManager.default = "i3";
      windowManager.i3.enable = true;
      resolutions = [{
        x = 1280;
        y = 1024;
      }];
    };