Full examples

[supersaiyansubtlety]

Could we please get some full examples on the wiki?

A walkthrough of creating a few dimensions, each progressively more complex than the last, would be ideal.

I was able to make an overworld-like dimension pretty easily, but I've been unable to do anything with custom generators.
I tried /dim generator superflat:true seed:1234 which output

[16:31:50] [Render thread/INFO]: [CHAT] Interdimensional: No biome source option specified, using default
[16:31:50] [Render thread/INFO]: [CHAT] Interdimensional: Set structures config to default with strongholds and overrides
[16:31:50] [Server thread/ERROR]: Command exception: /dim generator superflat:true seed:1234
java.lang.NullPointerException: Cannot read field "field_24835" because "☃" is null
	at Not Enough Crashes deobfuscated stack trace.(1.17.1+build.52) ~[?:?]
	at net.minecraft.world.biome.GenerationSettings.method_30979(GenerationSettings:83) ~[?:?]
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:178) ~[?:?]
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
	at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958) ~[?:?]
	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129) ~[?:?]
	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) ~[?:?]
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) ~[?:?]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) ~[?:?]
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
	at java.util.stream.ReferencePipeline.findAny(ReferencePipeline.java:652) ~[?:?]
	at net.minecraft.world.biome.GenerationSettings.method_30978(GenerationSettings:83) ~[?:?]
	at net.minecraft.world.gen.chunk.FlatChunkGeneratorConfig.createBiome(FlatChunkGeneratorConfig:154) ~[?:?]
	at net.minecraft.world.gen.chunk.FlatChunkGenerator.<init>(FlatChunkGenerator:27) ~[?:?]
	at net.quiltservertools.interdimensional.command.GeneratorCommand.updateGenerator(GeneratorCommand.java:115) ~[interdimensional-1.0.0.jar:?]
	at net.quiltservertools.interdimensional.command.GeneratorCommand.register$lambda-0(GeneratorCommand.java:42) ~[interdimensional-1.0.0.jar:?]
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:263) ~[brigadier-1.0.18.jar:?]
	at net.minecraft.server.command.CommandManager.redirect$zgg000$performCommand(CommandManager:547) ~[?:?]
	at net.minecraft.server.command.CommandManager.execute(CommandManager:251) ~[?:?]
	at net.minecraft.server.network.ServerPlayNetworkHandler.executeCommand(ServerPlayNetworkHandler:1222) ~[?:?]
	at net.minecraft.server.network.ServerPlayNetworkHandler.handleMessage(ServerPlayNetworkHandler:1206) ~[?:?]
	at net.minecraft.server.network.ServerPlayNetworkHandler.onGameMessage(ServerPlayNetworkHandler:1189) ~[?:?]
	at net.minecraft.network.packet.c2s.play.ChatMessageC2SPacket.apply(ChatMessageC2SPacket:30) ~[?:?]
	at net.minecraft.network.packet.c2s.play.ChatMessageC2SPacket.apply(ChatMessageC2SPacket:7) ~[?:?]
	at net.minecraft.network.NetworkThreadUtils.method_11072(NetworkThreadUtils:21) ~[?:?]
	at net.minecraft.server.ServerTask.run(ServerTask:18) ~[?:?]
	at net.minecraft.util.thread.ThreadExecutor.executeTask(ThreadExecutor:151) ~[?:?]
	at net.minecraft.util.thread.ReentrantThreadExecutor.executeTask(ReentrantThreadExecutor:23) ~[?:?]
	at net.minecraft.server.MinecraftServer.executeTask(MinecraftServer:788) ~[intermediary-1.17.1.jar:?]
	at net.minecraft.server.MinecraftServer.executeTask(MinecraftServer:164) ~[intermediary-1.17.1.jar:?]
	at net.minecraft.util.thread.ThreadExecutor.runTask(ThreadExecutor:125) ~[?:?]
	at net.minecraft.server.MinecraftServer.runOneTask(MinecraftServer:770) ~[intermediary-1.17.1.jar:?]
	at net.minecraft.server.MinecraftServer.runTask(MinecraftServer:764) ~[intermediary-1.17.1.jar:?]
	at net.minecraft.util.thread.ThreadExecutor.runTasks(ThreadExecutor:134) ~[?:?]
	at net.minecraft.server.MinecraftServer.runTasksTillTickEnd(MinecraftServer:749) ~[intermediary-1.17.1.jar:?]
	at net.minecraft.server.MinecraftServer.handler$egp000$modifiedRunLoop(MinecraftServer:11399) ~[intermediary-1.17.1.jar:?]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer:676) ~[intermediary-1.17.1.jar:?]
	at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer:270) ~[intermediary-1.17.1.jar:?]
	at java.lang.Thread.run(Thread.java:831) [?:?]

is this a snowman emoji? because "☃" is null