Yeah only perlite.
I used to grow in my own soil I made myself. Almost organic. Was good but a lot of work when it came time to finish a grow and start again.
I find perlite easier to use, store and handle than soil.
Never had a pest with perlite. Perlite requires at least twice the watering of soil and uses a lot more nutrients so that's a negative. Plants veg a little quicker in perlite.