Inspired by the datapack Incendium, the Ruined Lab structure.

Made using worldedit, the commands used are more or less:
- sel extend: To select by starting point and expanding selection from there, instead of defining two corner points.
- toggleplace: To create shapes with its center depending on firstly selected block instead of depending on player's position
- hsphere: Create a hollow sphere
- hcyl: Create a hollow cylinder

Schematic provided for reference.