Hey π
Looks reasonable, and you actually have everything you need. The layer of mostly coconut is even beneficial, as fungus gnats don't like to linger there.
However, in my opinion, you have the lamp way too close to the plant, which is why your leaves are curling. This is confirmed when looking at the internodal distances. Furthermore, you mentioned curling leaves in your report β this is also an indicator of light stress.
So I would hang the lamp a bit higher. A good measure is about 35-40 cm from the top of the plant to the lamp.
I hope that helps.
Happy growing πππ