Polymer Patch Bundle

Evidence

Ran on Kiln's test stand (2026-11-04): it stopped at eu.pb4.polymer.resourcepack.extras.api.format.item.model.ItemModel, a class from a jar nested inside the mod; Kiln does not unpack nested jars yet.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.minecraft.IdentifierException
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.core.IdMapper
• net.minecraft.core.QuartPos
• net.minecraft.server.packs.PackLocationInfo
• net.minecraft.server.packs.PackResources
• net.minecraft.server.packs.PackResources.ResourceOutput
• net.minecraft.server.packs.PathPackResources
• net.minecraft.server.packs.VanillaPackResources
• net.minecraft.server.packs.VanillaPackResourcesBuilder
• net.minecraft.server.packs.repository.KnownPack
• net.minecraft.server.packs.repository.PackSource
• net.minecraft.server.packs.resources.IoSupplier
• net.minecraft.server.packs.resources.Resource
• net.minecraft.world.level.ColorResolver
• net.minecraft.world.level.FoliageColor
• net.minecraft.world.level.GrassColor
• net.minecraft.world.level.biome.Biome
• net.minecraft.world.level.chunk.LevelChunk
• org.apache.commons.io.IOUtils
• Reference2IntMap.Entry.getKey()
• FabricLoader.isDevelopmentEnvironment()
• FabricLoader.isModLoaded()
• DefaultedRegistry.getId()
• Identifier.withSuffix()
• ServerPlayer.connection
• Vec3.add()
• Vec3.subtract()

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

Polymer Patch for blockus, terrestria, cinderscapes, traverse and woods_and_mires allowing them to work fully server side!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file polymer-patch-bundle-1.1.7+26.3.jar. The scan reads the mod's classes; it does not run them.