NULL // PLAY 1.2.1

Linux — x64 and arm64:

• Debian 13+ / Ubuntu 24.04+ / Null OS: sudo apt install ./null-play_1.2.1_amd64.deb (or _arm64.deb), then run nullplay (or gamemode), use the desktop shortcut or the taskbar pin, or pick NULL // PLAY from the Games menu.
• Any distro, no install: chmod +x null-play-1.2.1-x86_64.AppImage (or -arm64.AppImage) and run it.
• Anything else: unpack null-play-1.2.1-x64.tar.gz (or -arm64.tar.gz) and run the null-play binary inside.

1.2.0: Install every extra with the .deb; find gamemoderun in /usr/games

- .deb now depends on gamemode, network-manager, wireplumber, bluez,
  ddcutil and libglib2.0-bin (were recommends or missing), so GameMode,
  Wi-Fi, volume, controllers, monitor brightness and the taskbar pin work
  out of the box
- Load i2c-dev at boot (and right away outside a chroot) so ddcutil can
  reach external monitors; its udev rule gives the logged-in user access
- Debian/Ubuntu put gamemoderun in /usr/games, which isn't on PATH in
  every session: look there too and run it by full path
- Install test checks every extra arrives; policy-rc.d keeps the test from
  starting services on the machine running it

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MYkT7n8s1tHWQQTfEQPV6o

NULL // PLAY 1.1.0

Linux — x64 and arm64:

• Debian 13+ / Ubuntu 24.04+ / Null OS: sudo apt install ./null-play_1.1.0_amd64.deb (or _arm64.deb), then run gamemode or pick NULL // PLAY from the Games menu.
• Any distro, no install: chmod +x null-play-1.1.0-x86_64.AppImage (or -arm64.AppImage) and run it.
• Anything else: unpack null-play-1.1.0-x64.tar.gz (or -arm64.tar.gz) and run the null-play binary inside.