Arrow keys/Spacebar or clicking the sprite to advance I build all of these myself (except for my house I took that from a world I downloaded from Planet Minecraft) and I play on SaltyMC (IP is play.saltymc.org both Bedrock and Java). Also watch CringyGull since he made the server. I might build in survival single player as well but for now I'm gonna stick with Salty.
Server: SaltyMC Mods: not many. mostly just shaders and resource packs. The mods that I have barely work with the server since they're all client-side. Resource packs: Stay True, Fresh Animations (all extensions and players), Bushy Leaves, many others that I forgot lol. Buildings are mostly from references except the tower which I came up with myself and the Temple of Brog which was a group effort with a bunch of others.