Warp portals are created with sourcestone bricks. I'd love to have a way as a pack maker to make portals still possible to create, but more difficult by either requiring some sort of "portal keystone" block that is unique and can have its recipe changed via datapack, or able to change which block or blocks can be used as portal frames.

For example: A config option that the frame requires a keystone block, and I could change the keystone block's recipe to include a nether star or something.

Or, a way to limit and select what blocks can be used to make portal frames.