You probably don't know much about filing, but there is no reason it would be any less accurate than CNC if done properly.
Also doubt this would affect strength, given the apparent thickness behind it, really depends on the interior, which is almost certainly also rounded for strength, and to prevent a week point for cracks to start.
You can get uniform curvature when filing. Ever hear of filing buttons? Or checking your work with a radius tool until you are in compliance? Stop talking about what filing can't do if you don't know anything about filing.
Really? Co-worker 4 is just repeating a pun. Using "sharpe" to mix the meanings of "good looking" and "literally sharpe" is a well known joke. Almost a dad-joke, a joke that's been done so many times that everyone recognizes when it's there to be done, but the person who actually does it out loud will annoy people with their predictability.
Photo storage and display is definitely a top 5 reason to self host these days. Restic and backblaze make a great off site backup solution because, like the OP said, this is important stuff.
For me, it's the difference between taking your medicine a bit at a time on your own schedule or taking it all at once as an unwelcome surprise. Sure, setting up file system mounts or adding udev entries is easier to do once in Ubuntu than in NixOS, but I only need to do it the one time with NixOS. Thereafter, the config serves as both documentation and backup. For a hobby self hoster like me who occasionally shoots himself in the foot and has to rebuild a system, it is ideal. I don't know if it really saves me time, but I do know it saves my sanity.
I am no nix whiz, but it's the only OS I run outside of containers. Anything I can't easily get with my nix config I shove into a container, run it as a quadlet, and call it good.
Medical equipment reps often play a pretty active role in patient care. Can't get in touch with a rep to put a device into its MRI safe mode? No MRI for you. Can't get a rep in to help the surgeon with the type in hardware they were going to install? No surgery for you.
People's AICDs aren't going to start exploding, but I'm pretty confident this will hamper care for many patients.