How do you fly on minetest?

To fly in Minetest, you need to enable the fly mode, which can typically be done by pressing the "Fly" key (default is usually "Fly" or "F"). If you're in creative mode, you can simply double-tap the jump key (usually the spacebar) to start flying. Once in fly mode, use the movement keys to navigate in the air. To disable flying, you can press the same key again or double-tap the jump key once more.