Lighten Up, Chunks!

Evidence

Ran on Kiln's test stand (2026-11-04): LightenUpChunks did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/command/v2/CommandRegistrationCallback.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopping
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.core.SectionPos
• net.minecraft.nbt.CompoundTag
• net.minecraft.nbt.ListTag
• net.minecraft.nbt.NbtAccounter
• net.minecraft.nbt.NbtIo
• net.minecraft.server.MinecraftServer
• net.minecraft.server.level.ChunkTrackingView
• net.minecraft.server.level.ServerBossEvent
• net.minecraft.server.level.ServerChunkCache
• net.minecraft.server.level.ThreadedLevelLightEngine
• net.minecraft.server.level.TicketType
• net.minecraft.server.network.PlayerChunkSender
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.permissions.Permissions
• net.minecraft.server.players.PlayerList
• net.minecraft.world.BossEvent
• net.minecraft.world.BossEvent.BossBarColor
• net.minecraft.world.BossEvent.BossBarOverlay
• net.minecraft.world.level.ChunkPos
• net.minecraft.world.level.LightLayer
• net.minecraft.world.level.chunk.ChunkAccess
• net.minecraft.world.level.chunk.ImposterProtoChunk
• net.minecraft.world.level.chunk.LevelChunk
• net.minecraft.world.level.chunk.LevelChunk.UnsavedListener
• net.minecraft.world.level.chunk.storage.RegionFileVersion
• net.minecraft.world.level.dimension.DimensionType
• net.minecraft.world.level.storage.LevelResource
• and 9 more

On the roadmap: Code next to data (0.3), Mixin (0.5)

In the author's words

This project re-calculates the lighting of every chunk in your world! Useful if you've optimised your world and your LODs are broken.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file lighten-up-chunks-1.3.0.jar. The scan reads the mod's classes; it does not run them.