Everything here is my opinion. I do not speak for your employer.
"The problem is not that we have a lot of fsync() calls. Quite the reverse. fsync() is really really rare. So is being careful in general. The number of applications that do even the minimal safety-net of 'create new file, rename it atomically over an old one' is basically zero." -- Linus Torvalds
Try Tailscale: mesh networking, centralized administration, WireGuard.
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