To add this pack to your world, turn on all experimental toggles (I don't know which ones are necessary,

so flip them all. You probably don't need Caves and Cliffs though.) You will also need to turn on Education

Edition features. This changes nothing about the survival experience, it's only here for flying as a spectator.

When you die, you will have a modified death screen, which says Game Over! and Spectate World. (It says

Leave Game too, but that's boring. Bedrock Edition does not yet have support for deleting worlds from

the death screen.)