Server local combination question

You read the title and stuff. But I’m not really asking for occlusion culling. Object cache and deleting voxels the player isn’t seeing.

If my terrain generation will be locally generated. But the seed will be on the server ofc. For server sided activities like tree cutting as shown below (all server sided in there)

What changes do I do to every thing when adding client sided generation? And intergrate it with server sided tools? Do I change the tools? And how?

Any help would be great