Think from this question being asked many times on here over the years, its using a few deterrents that sems to always work best.
The most effective for me are;
Copper tape rings around the tops of pots.
The traditional blue pellets that contained the M word worked well many years back. Of course not for sale now.
But I for a good many years now like the Doff 'organic' type ones that have Ferric Phosphate have for me been effective. Only use them inside the edge of the greenhouse and frames etc, as they are completely out of reach form my and neighbouring cats and/or any wildlife.
Have used nematodes (my own home made ones) for many years on my potato beds, raised beds and bags. Not had a single slug since in that area.
Around the garden/plot, a torch late at night and early morning, especially after a rain shower, picking them off the ground/paths/plants.
I have traps scattered around the garden/plot, that I top up each fortnight. They welcome in plenty of drowned slugs and snails.
I used supermarket own brand yogurt pots and their lids. They have a small 1/2 inch slit on each side at soil level near the top of the pot.
As I make my own bread, I make up a teaspoon yeast solution in a few pints of water and mix well as the solution.