The only other consideration I would add, when putting ointment on with a q-tip, probably better to use a sterile swab. I think you can get them from the pharmacy (I have access through work lol) and that would be one more safety measure to take.
Sterile eye lubricant actually also works really nicely for keeping the membrane moist and it’s meant to stick around for a bit. I’ve used it successfully on assisted hatches.
I do think a still air, well controlled incubator would be best for this sort of experiment, too. Too many variables and fluctuations otherwise.
yeah, it’s too friendly. Sure it’s lonely

but it’s so tiny it has to be in a brooder by itself, any other babies I have are way too big and would crush the teeny thing. lol. It’s thriving though so im going to ask around and see if I can find it a similar age friend.