horizon-kiln 0.1.0-alpha

First alpha of horizon-kiln: Kiln runs Java (Fabric) mods in Horizon, the Rust rewrite of Minecraft 26.3, and its first mod is our speedrun timer.

Install: see INSTALL.md (Russian and English). Tested on macOS (Apple Silicon) with Horizon Nightly 2026-10-29 · 5e391eb; not tried on Windows or Linux.

Files

• horizon-kiln-0.1.0-alpha.zip: Kiln 0.1.0 as a native Horizon mod (kiln-native/, kiln-0.1.0.hnmod), and the kiln/ folder for the game (kiln-runtime.jar, the timer).
• kiln-timer-0.1.0-alpha.jar: Kiln Speedrun Timer for Minecraft 26.3 with Fabric (Loader 0.20.1+, Fabric API).

What works

• Kiln starts Java beside the game, runs Fabric client mods from <game folder>/kiln/mods/, gives them client ticks with the game's state, keys and advancements, and draws their HUD.
• The timer: Any% splits from advancements and dimensions, RTA and IGT without pauses and loading screens, personal best with deltas, keys J / K / U. The same jar runs in Minecraft with Fabric and in Horizon through Kiln; both are tested by playing a run with commands.

Limits

Kiln knows only the few Minecraft and Fabric classes these mods use; no Mixin. Single player. The timer has no chat command yet, its panel updates 20 times a second, and it is not a speedrun.com-approved timer. Native mods run unsandboxed: read the code before you build it.