RIAutomobility: Unofficial Port

Evidence

Ran on Kiln's test stand (2026-11-04): RIAutomobility did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager; RIAutomobilityClient did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.registry.DynamicRegistries
• net.fabricmc.fabric.api.event.registry.DynamicRegistries.SyncOption
• net.fabricmc.fabric.api.event.registry.DynamicRegistrySetupCallback
• net.fabricmc.fabric.api.event.registry.DynamicRegistryView
• net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.Context
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.PlayPayloadHandler
• net.minecraft.core.RegistryAccess
• net.minecraft.core.RegistryAccess.Frozen
• net.minecraft.network.codec.StreamCodec
• net.minecraft.network.protocol.common.custom.CustomPacketPayload
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.Type
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.TypeAndCodec
• net.minecraft.network.syncher.SynchedEntityData
• net.minecraft.server.MinecraftServer
• org.apache.logging.log4j.LogManager
• LocalPlayer.getVehicle()
• Registry.get()
• Registry.listElements()
• ServerPlayer.getVehicle()
• Level.registryAccess()

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Unofficial Fabric port of SShakusora's RIAutomobility addon for Automobility, updated for Minecraft Java 26.x.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file riautomobility-0.1.0-unofficial.10+26.3.jar. The scan reads the mod's classes; it does not run them.