nathanmcrae

Laser trackers (used for metrology) can also use spiral search to find retroreflectors. Although I believe newer models generate a flash of infrared and find them via bright spots in the resulting image from a camera. I imagine modern celestial navigation systems evolved similarly (minus the infrared flash, not very useful for stars).

I have used this for throwing together some models for 3D printing. I've found it very intuitive, though I'm not sure how ergonomic it would be for complex assemblies.

I really like the space-key based command access and default shortcuts for all the commands.

Aside, but it's pretty neat that the author has been semi-regularly posting on their blog for over 20 years.

How do you go about positively demonstrating such a system is air-gapped?

No, 600 megatons (~E12 kg) is closer. There are E10 humans and we weigh E2 kg. More precisely: 6E1 kg * 8E9 = 5.6E11

I've run Nextcloud for years primarily for webdav file sync and calendar+contacts. It pretty much just works. That's not to say there isn't any jank, but it's mostly if you try the more obscure apps e.g. I've set up the phone track feature and it worked for a while, but I've had trouble with it recently. Probably fixable, but I just haven't spent the time.

I would say it is the core component of my self-(vps)-hosted setup and easily the most valuable.

Even though this isn't a fully-fledged industrial system, I like the thought they put into those aspects. Particularly, I want to make a homebrew PLC myself someday and the 24V IO board they made would be a nice starting point for that.