@@ -0,0 +1,988 @@
+package com.elytradev.movingworld.common.network.marshallers;%0A%0Aimport io.github.elytra.concrete.Marshaller;%0Aimport io.netty.buffer.ByteBuf;%0Aimport net.minecraftforge.fml.common.network.ByteBufUtils;%0A%0A/**%0A * Code from Concrete that's not available in 0.0.6 builds.%0A */%0Apublic class ByteBufMarshaller implements Marshaller%3CByteBuf%3E %7B%0A%0A    public static final String MARSHALLER_NAME = %22com.elytradev.movingworld.common.network.marshallers.ByteBufMarshaller%22;%0A    public static final ByteBufMarshaller INSTANCE = new ByteBufMarshaller();%0A%0A    @Override%0A    public ByteBuf unmarshal(ByteBuf in) %7B%0A        int length = ByteBufUtils.readVarInt(in, 5);%0A%0A        return in.readBytes(length);%0A    %7D%0A%0A    @Override%0A    public void marshal(ByteBuf out, ByteBuf t) %7B%0A        if (t != null) %7B%0A            ByteBufUtils.writeVarInt(out, t.readableBytes(), 5);%0A            out.writeBytes(t.readBytes(t.readableBytes()));%0A        %7D else %7B%0A            ByteBufUtils.writeVarInt(out, 0, 5);%0A        %7D%0A    %7D%0A%7D%0A

Add a byte buf marshaller for use until Concrete 0.0.7+ is on maven.