Deepslate Haste

Evidence

Ran on Kiln's test stand (2026-11-04): DeepslateHaste did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/networking/v1/PayloadTypeRegistry; DeepslateHasteClient did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• 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.client.gui.Hud
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.StringWidget
• net.minecraft.network.chat.Style
• net.minecraft.network.codec.ByteBufCodecs
• 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.server.MinecraftServer
• net.minecraft.server.players.PlayerList
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.effect.MobEffects
• Font.width()
• Gui.hud
• MutableComponent.setStyle()
• ServerPlayer.addEffect()
• Blocks.DEEPSLATE

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

In the author's words

With this Mod / Datapack you can instantly mine Deepslate with a Netherite pickaxe.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file deepslate-haste-2.0.1.jar. The scan reads the mod's classes; it does not run them.