Snails in my greenhouse

[Tango]

Hi!
Since late summer, I have an infestation of snails in my greenhouse. Those tiny ones that reduce root tips to rubble overnight. Slowly, coming into my tiny greenhouse has stopped being a joy. I feel really depressed when I see my decaying plants. They became just salad for those critters.
I have tried several remedies: lettuce and potato traps, coffeine, peroxide... But they always win. I have also tried metaldehyde pellets, but they are too big to stop them.
I would like to know about what growers do with such infestations, I cannot believe there is nothing against them in 2023.
By the way, I don't think I will buy a duck or spread beer around.
Thank you for your comments!
Tango