Baritone

A port to Rust of Baritone 1.21.4 for Horizon, written from the Java source: the pathfinder (A* with walking, sprinting, parkour, bridging, pillaring, doors, ladders and water bucket landings), #goto, #mine, #farm, #follow, #explore, #build (schematics and shapes), #tunnel, #elytra, waypoints, and every setting and command of the Java mod. Type #help in chat. PARITY.md in the source lists every Java class and what became of it.

What it does not do: it draws the cached chunks semitransparent (renderCachedChunks) only if Horizon later offers a renderer for it. Like the Java mod it plays for you, so many multiplayer servers ban it: that choice is the player's.

For reviewers:

• No network access of its own: nothing in the source opens a socket or an HTTP request.
• It writes only its settings, cached chunks and waypoints under horizon-mods/.horizon-mod-data/baritone/, and reads the schematic and explore-filter files the player names in a command.
• It starts an operating system program in two places, both in src/utils/notification.rs: desktop notifications (PowerShell on Windows, osascript on macOS, notify-send on Linux), which are off unless the player sets desktopNotifications true, and #pizza, which opens a web page in the browser (the Java mod has the same command).
• The .hnmod is built from the source of the tagged release, python tools/pack.py, and is the same file every time.
• Pinned to Nightly 2026-10-30 (ba6344a): the launcher builds the game on that commit, and so does not depend on the Nightly the player has.