To avoid damping off, it is best to sow the seed in something that has very few bacteria in it, and an environment that isn't too humid.
I prefer bagged coco coir, with a feed of 0.4 EC of bloom food which stimulates root (P) growth and strong silvery stems (K) and a little epsom salt for magnesium which keeps the leaves green and alert, and a RH of 50%. You can use a humidity dome, without spraying water, just to slow evaporation.
You can also use rockwool instead of coco coir.
And walk away.