[1.15.2]How do I override vanilla biomes?

[kyazuki]

My mod add only 1 block.

I want to replace all blocks which the game generates for the block.(except fluids, spawners and end portal frames)

However, I don't want to override vanilla blocks.

Then I hope that the game generates structures.(e.g. Stronghold)

And I want to replace blocks of structures.

So I think overriding biomes and structures is easier than adding biome.

How do I override?

[kyazuki]

Should I make a custom biome?

[kyazuki]

Yes.

I want to go the end in the world.

So I need Stronghold.

[kyazuki]

My block can be crafted most of the items.

So I don't need resources.

[kyazuki]

I see...

Thank you!