FAQ

Does this work with Bedrock/GeyserMc?

tl;dr: no.

The way bedrock works is quite different from Java. The hacks PolyMc does won't work well for Bedrock. I believe Geyser has a way to convert resource packs, so you might have some luck with that. Ideally a separate mod would be created that handles Bedrock clients, considering Bedrock actually supports custom blocks/items/entities, such a mod should work really well. Unfortunately nobody actually has had the time to make it.

Why is this block stone?

PolyMc might not be able to handle the collision shape of the block, or PolyMc might have run out of blocks. See the limitations page.