nixos/services/tv-detox.nix

# services/tv-detox.nix — keep the Philips TV's bloat turned off.
#
# Oct 2026: the living-room Philips 58PUS7304 (Android TV 12) was cleaned up
# over adb: bloat turned off with `pm disable-user` (never uninstalled), and
# the tv-detox home screen (github.com/Ansub/tv-detox) replaced Google's
# launcher. Philips firmware switches some of those apps back on at every
# cold boot (the UK Freeview Play apps and DTS Play-Fi), and nothing on an
# unrooted TV can switch them off again by itself.
#
# This timer connects over adb every 2 minutes and turns off anything on
# `keepOff` that has come back. TV off / in standby / unreachable -> no-op.
#
# One-time setup: on the first run the TV shows "Allow USB debugging?" for this
# server's own key (kept in /var/lib/tv-detox). Tick "Always allow".
#
# To deliberately turn an app back on, remove it from `keepOff` first,
# otherwise this switches it off again within 2 minutes.

{ config, lib, pkgs, ... }:
let
  # Reserved for the TV in ../devices.toml.
  tv = "10.0.0.40:5555";

  keepOff = [
    # Pre-installed Philips / partner apps
    "org.droidtv.nettvapp1814" # ARTE
    "org.droidtv.nettvapp20004410" # Couchplay Games
    "org.droidtv.nettvapp4546" # MEGOGO
    "org.droidtv.nettvapp4655" # Deezer
    "org.droidtv.nettvapp4771" # Divan.TV
    "org.droidtv.nettvapp4932" # Free Games by PlayWorks
    "org.droidtv.nettvapp5326" # Toon Goggles
    "org.droidtv.nettvapp5512" # Fishing TV
    "org.droidtv.nettvapp5527" # Flix Premiere
    "com.zeasn.whalelive" # WhaleLive
    "com.mgmedia.androidApp" # CHILI
    "tv.wuaki.apptv" # Rakuten TV
    "com.singa.client" # Singa
    "com.ted.android.tv" # TED
    "com.blacknut.client" # Blacknut
    "com.boosteroidtv.streaming" # Boosteroid
    "org.droidtv.android.fitness" # Fitness Buddy
    "tv.pluto.android" # Pluto TV

    # Philips / Google background extras
    "org.droidtv.demome" # Demo me
    "org.droidtv.sticker" # Sticker (store demo)
    "org.droidtv.eum" # How to… (manual)
    "org.droidtv.nettvrecommender" # Top Picks
    "org.droidtv.recommendation" # Recommendation
    "org.droidtv.usagelogger" # Usage logger
    "org.droidtv.tv.frameworklogger" # Framework logger
    "org.droidtv.nettv.market" # Philips App Gallery
    "com.google.android.tvrecommendations" # Google TV recommendations
    "com.google.android.play.games" # Google Play Games
    "com.google.android.feedback" # Google Feedback
    "com.android.printspooler" # Print spooler
    "com.google.android.marvin.talkback" # TalkBack
    "com.google.android.backdrop" # Ambient mode / Backdrop

    # Not used
    "com.google.android.youtube.tvmusic" # YouTube Music
    "tv.twitch.android.app" # Twitch (official)
    "com.google.android.videos" # Google TV / Play Movies
    "com.google.android.apps.mediashell" # Chromecast built-in
    "com.google.android.katniss" # Google Assistant / voice search
    "org.droidtv.amazonalexa" # Amazon Alexa
    "org.droidtv.alhuewizard" # Hue setup wizard
    "org.droidtv.ambihuecommon" # Ambilight + Hue
    "org.droidtv.ambiair" # Ambilight + air
    "org.droidtv.contentexplorer" # Media (USB player)
    "org.droidtv.dlna" # DLNA
    "com.phorus.playfi.tv" # DTS Play-Fi
    "com.phorus.playfi.softap" # DTS Play-Fi hotspot

    # Freeview Play (re-enabled by Philips at every boot)
    "org.droidtv.freeviewplayers" # Freeview Play hub
    "uk.co.freeview.bbc" # BBC iPlayer
    "uk.co.freeview.bbc_sounds" # BBC Sounds
    "uk.co.freeview.itv" # ITVX
    "uk.co.freeview.ch4_vod" # Channel 4
    "uk.co.freeview.ch5" # Channel 5
    "uk.co.freeview.stv" # STV
    "uk.co.freeview.uktv" # UKTV Play
    "uk.co.freeview.amc_catchup" # AMC
    "uk.co.freeview.amc_horror" # AMC Horror
    "uk.co.freeview.sony_kids_vod" # Sony Kids
    "uk.co.freeview.explore" # Freeview Explore
    "uk.co.freeview.onnow" # Freeview On Now
    "uk.co.freeview.mdsclient" # Freeview Play bridge
    "uk.co.freeview.tifbridge" # Freeview Play TV-input bridge
    "uk.co.freeview.fvpconfigauth" # Freeview Play config/auth

    # Replaced by the tv-detox home screen (com.ansub.tvhome)
    "com.google.android.tvlauncher" # Google Android TV home screen
  ];

  enforce = pkgs.writeShellScript "tv-detox" ''
    set -uo pipefail
    tv=${tv}

    adb connect "$tv" >/dev/null 2>&1 || true
    state=$(adb -s "$tv" get-state 2>&1 || true)
    case "$state" in
      device) ;;
      *unauthorized*)
        echo "tv-detox: TV is asking \"Allow USB debugging?\" for this server; tick Always allow"
        exit 0 ;;
      *) exit 0 ;;  # off, in standby or unreachable
    esac

    enabled=$(adb -s "$tv" shell pm list packages -e </dev/null | tr -d '\r' | sed 's/^package://')
    for p in ${lib.escapeShellArgs keepOff}; do
      grep -qxF "$p" <<<"$enabled" || continue
      if adb -s "$tv" shell pm disable-user --user 0 "$p" </dev/null | grep -q disabled-user; then
        echo "tv-detox: $p was back on, turned it off"
      else
        echo "tv-detox: failed to turn off $p"
      fi
    done
    adb kill-server >/dev/null 2>&1 || true
  '';
in
{
  config = lib.mkIf (config.networking.hostName == "FredOS-Mediaserver") {

    systemd.services.tv-detox = {
      description = "Keep the Philips TV's bloat apps turned off";
      path = with pkgs; [ android-tools coreutils gnugrep gnused ];
      environment = {
        # adb keeps its key in $HOME/.android. Own server port so it never
        # shares an adb server (and key) with an interactive session.
        HOME = "/var/lib/tv-detox";
        ANDROID_ADB_SERVER_PORT = "5038";
      };
      serviceConfig = {
        Type = "oneshot";
        ExecStart = enforce;
        DynamicUser = true;
        StateDirectory = "tv-detox";
        TimeoutStartSec = "90s";
      };
    };
    systemd.timers.tv-detox = {
      wantedBy = [ "timers.target" ];
      timerConfig = {
        OnBootSec = "2min";
        OnUnitActiveSec = "2min";
      };
    };
  };
}