I think the fear is scrutiny, rejection, mockery for something that clearly works for you and you don't ever expect anyone else to use. But also partly that it's exposure without much reward in return. All these feelings are normal and it's fine to share or not share them. Just please honour the authors of the dotfiles you read even if you wouldn't ever think to use code in the way they do!
If history repeats itself, maybe with software we can automate that whole process…
Things that've helped:
1) Using body pillows to force sleeping on side, which straightens the neck (versus face-down) — also lessens low-back pain
2) DENTAL GUARD (a 3D-printed plastic insert which form-fits my teeth, slightly opening jaw-angle/mouth)
3) Losing weight — YES, sleep apnea is worsened by excess weight
4) Pseudoephedrine (an hour before sleep) — but be careful cause too much and you won't ever sleep
YMMV; I am not a doctor (just fat guy with apnea).
It's probably too long to quote here, but it's a very unique definition that seems worth taking into consideration when you read their other material.
What job can a tire iron do while trying to get out of your flooded home, or escape a wildfire?
What can a baseball bat do for the residents of Helsinki in the event of armed aggression against Finland?