Chairborne — Java Edition

Sit down anywhere. A faithful Fabric port of the Bedrock Chairborne mod to Java Edition.

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How It Works

Feature	Status
`/sit`	Sit down anywhere — works
`/stand`	Stand back up — works
Look down + sneak-click	Auto-sit gesture — works
`/lay`	Coming soon (caused camera issues in initial release)

When you use /sit, an invisible ArmorStand spawns at your position and you ride it. Vanilla Minecraft handles the sitting animation and position lock automatically — no client-side mod, no Mixins, no experiments.

Commands

Command	Description
`/sit`	Sit down anywhere
`/stand`	Stand back up

Installation

Requirements

Component	Version
Minecraft Java Edition	26.2 (latest stable)
Fabric Loader	0.19.3
Fabric API	0.156.0+26.2 (required dependency)
Java SE / JDK	25

Steps

Install Fabric Loader for Minecraft 26.2
Download Fabric API and place it in your mods/ folder
Download ciservermodding-chairborne-1.0.0.jar and place it in your mods/ folder
Launch the game and use /sit

Server Installation

Place both the Fabric API jar and the Chairborne jar in the server's mods/ folder. Clients connecting to the server do not need the mod installed — all logic runs server-side. The sitting animation is handled by vanilla riding mechanics.

Compatibility

Server-side only — clients don't need the mod
No Mixins
No client-side code
No experiments or beta APIs
No custom items, blocks, or entities (uses vanilla ArmorStand)
Works with all other Fabric mods

Technical Details

The mod uses an invisible, no-gravity, no-base-plate ArmorStand spawned at the player's position. The player rides the ArmorStand, which triggers the vanilla sitting animation (isPassenger = true) on all clients. The ArmorStand is positioned 2 blocks below the player to compensate for the vanilla ride height offset.

Sneak gesture detection: Rising/falling edge detection on sneak key, with a 6-tick (0.3s) max hold threshold to distinguish a "click" from a "hold"
Pitch threshold: 60 degrees down triggers sit
Cleanup: ArmorStands are discarded when the player stands up, leaves, or is no longer riding

Differences from Bedrock

Feature	Bedrock	Java
`/sit`	Invisible rideable entity	Invisible ArmorStand
`/lay`	Scoreboard-triggered animation	Coming soon
`/stand`	Eject + remove entity	stopRiding + discard ArmorStand
Sneak gestures	Look down/up + crouch-click	Look down + sneak-click
Client mod required	No	No

Credits

Author: CIServerModding
Original Bedrock mod: Chairborne (Bedrock)
Java port: ClockSplice + AI Help

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Chairborne - Java Edition