ExoConfig

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

Evidence

Ran on Kiln's test stand (2026-11-04): ExoconfigFabric did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/networking/v1/PayloadTypeRegistry; ExoconfigFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/gui/components/AbstractWidget.

What it needs from Kiln

an access widener
com.mojang.blaze3d.Blaze3D
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.event.lifecycle.v1.ServerLifecycleEvents
net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.SyncDataPackContents
net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
net.minecraft.client.Options
net.minecraft.client.gui.GuiGraphicsExtractor.HoveredTextEffects
net.minecraft.client.gui.components.AbstractButton
net.minecraft.client.gui.components.AbstractSelectionList
net.minecraft.client.gui.components.AbstractSelectionList.Entry
net.minecraft.client.gui.components.AbstractSliderButton
net.minecraft.client.gui.components.AbstractWidget
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.ContainerObjectSelectionList
net.minecraft.client.gui.components.ContainerObjectSelectionList.Entry
net.minecraft.client.gui.components.EditBox
net.minecraft.client.gui.components.StringWidget
net.minecraft.client.gui.components.Tooltip
net.minecraft.client.gui.components.WidgetSprites
net.minecraft.client.gui.components.events.GuiEventListener
net.minecraft.client.gui.components.toasts.SystemToast
net.minecraft.client.gui.components.toasts.SystemToast.SystemToastId
net.minecraft.client.gui.components.toasts.ToastManager
net.minecraft.client.gui.layouts.HeaderAndFooterLayout
net.minecraft.client.input.KeyEvent
net.minecraft.client.renderer.RenderPipelines
net.minecraft.network.FriendlyByteBuf
net.minecraft.network.chat.CommonComponents
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.util.Mth
Minecraft.options
Gui.toastManager()
and 3 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

A Powerful and Simple Config System for modern Minecraft with auto screen support

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file ExoConfig-26.3-fabric-0.3.6.jar. The scan reads the mod's classes; it does not run them.

Reports from players

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