i have decided to create my own mod, i am trying to create a block that converts every block nearby to itself after random update ticks similar to something from the tiberium mod and i want it to change the biome at the individual block level to a custom biome everytime my custom block spreads to a new block.

is it even possible to code something that will change what biome is defined to a block while in game

Update: somehow someone figured out how to hack biomes in game
https://www.youtube.com/watch?v=NxT7wXn3fho