Nautilus Studio - Packs Editor IDE

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): NautilusStudioFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

an access widener
Mixin
com.mojang.blaze3d.Blaze3D
com.mojang.blaze3d.ProjectionType
com.mojang.blaze3d.pipeline.RenderTarget
com.mojang.blaze3d.pipeline.TextureTarget
com.mojang.blaze3d.platform.Lighting
com.mojang.blaze3d.platform.Lighting.Entry
com.mojang.blaze3d.platform.NativeImage
com.mojang.blaze3d.systems.RenderSystem
com.mojang.blaze3d.vertex.PoseStack
com.mojang.blaze3d.vertex.PoseStack.Pose
com.mojang.blaze3d.vertex.VertexConsumer
com.mojang.renderpearl.api.GpuFormat
com.mojang.renderpearl.api.buffers.GpuBuffer
com.mojang.renderpearl.api.buffers.GpuBufferSlice
com.mojang.renderpearl.api.buffers.GpuBufferSlice.MappedView
com.mojang.renderpearl.api.commands.CommandEncoder
com.mojang.renderpearl.api.commands.GpuFence
com.mojang.renderpearl.api.commands.RenderPass
com.mojang.renderpearl.api.device.DeviceInfo
com.mojang.renderpearl.api.device.GpuDevice
com.mojang.renderpearl.api.textures.GpuTexture
net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.Context
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.PlayPayloadHandler
net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
net.fabricmc.fabric.api.event.registry.DynamicRegistries
net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
net.fabricmc.fabric.api.resource.v1.ResourceLoader
net.fabricmc.loader.api.ModContainer
net.fabricmc.loader.api.Version
net.fabricmc.loader.api.metadata.ModMetadata
net.minecraft.SharedConstants
net.minecraft.WorldVersion
net.minecraft.advancements.Advancement
net.minecraft.advancements.AdvancementType
net.minecraft.advancements.DisplayInfo
net.minecraft.client.Camera
and 81 more

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

General Purpose Data pack and Resource Pack editor. Automatically generates GUI for ANY datapack file, easily customize your game.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file nautilus_studio-26.3-1.14.1-fabric.jar. The scan reads the mod's classes; it does not run them.

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