Sepals

Evidence

Ran on Kiln's test stand (2026-11-04): SepalsFabric did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager.

What it needs from Kiln

• Mixin
• net.fabricmc.loader.api.ModContainer
• net.fabricmc.loader.api.metadata.ModMetadata
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.arguments.EntityArgument
• net.minecraft.core.SectionPos
• net.minecraft.network.chat.Style
• net.minecraft.server.MinecraftServer
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.permissions.Permissions
• net.minecraft.util.GsonHelper
• net.minecraft.world.entity.ai.Brain
• net.minecraft.world.entity.ai.Brain.Visitor
• net.minecraft.world.entity.ai.behavior.Behavior
• net.minecraft.world.entity.ai.behavior.Behavior.Status
• net.minecraft.world.entity.ai.behavior.BehaviorControl
• net.minecraft.world.entity.ai.memory.MemoryModuleType
• net.minecraft.world.entity.ai.memory.MemoryStatus
• net.minecraft.world.entity.ai.village.poi.PoiManager
• net.minecraft.world.entity.ai.village.poi.PoiManager.Occupancy
• net.minecraft.world.entity.ai.village.poi.PoiRecord
• net.minecraft.world.level.ChunkPos
• net.minecraft.world.level.Level.ExplosionInteraction
• net.minecraft.world.level.LevelHeightAccessor
• net.minecraft.world.level.LevelReader
• net.minecraft.world.level.chunk.status.ChunkStatus
• org.apache.logging.log4j.LogManager
• org.apache.logging.log4j.Logger
• FabricLoader.getAllMods()
• BlockPos.distSqr()
• Component.nullToEmpty()
• MutableComponent.withStyle()
• RandomSource.nextLong()
• LivingEntity.getBrain()
• Level.explode()

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

An extremely radical and experimental optimization for Minecraft server performances.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file Sepals-fabric-1.0.31.jar. The scan reads the mod's classes; it does not run them.