aterkeep v1.0.0

Keeps a free Aternos Minecraft server online around the clock: a single binary
that queues, confirms the queue when your turn comes, starts the server,
keeps it from idling out, and gives you a password-protected web panel in 14
languages.

The queue confirmation is the part that matters. Aternos opens a ~30 second
window when your turn arrives; miss it and you go to the back of the line. That
is why unattended keep-alive scripts sit in the queue forever. aterkeep watches
for it and confirms on its own.

Install

Platform	Download
Windows	aterkeep-windows.exe
Linux (x86-64)	aterkeep-linux-amd64
macOS (Apple Silicon)	aterkeep-macos-arm64
Android	build in Termux — see docs/TERMUX.md

Also grab aterkeep-extras.zip if you want the anti-idle bot or autostart:
it holds bot/, the installer scripts and the docs. Unpack it next to the
binary.

Run the binary, open http://127.0.0.1:4041, and follow the setup wizard: pick
a language, set a panel password, paste your Aternos cookie: header. No server
ID needed — it is read from the cookies.

What's in it

• Automatic queue confirmation, level-triggered with a throttle, and polling
  that tightens as your position approaches
• Anti-idle bot (mineflayer) the daemon starts when the server comes up and
  stops when it goes down; needs Node.js
• Session encryption with AES-256-GCM, the key derived from your panel
  password via PBKDF2 (600k iterations, per-install salts). The key is never
  written to disk, so a copied config/ folder is worthless without the
  password
• Panel login, random token in an HttpOnly; SameSite=Strict cookie
• 14 languages, chosen during setup and switchable live; Arabic renders
  right-to-left
• Live status over the Hermes WebSocket: TPS, RAM, players, server console
• Autostart for Windows (DPAPI), systemd and Termux — see docs/AUTOSTART.md
• Pure HTTP. No browser, no Playwright, no headless Chromium

Notes

• Aternos cookies are short-lived. When they expire the panel says so and offers
  a one-click refresh rather than pretending the server is offline.
• The bot joins with an offline-mode username; if your server has
  online-mode=true the panel tells you which setting to change.
• Requires curl on PATH (present by default on Windows 10+, macOS and most
  Linux distributions).

Licence

Commercial, source-available. Personal evaluation is granted; resale,
commercial use, derivatives and hosting are not. To purchase: berlaylc2138@gmail.com

Independent project. Not affiliated with Aternos GmbH or Mojang Studios.