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Heart Aerospace (YC W19) just flew the largest electric airplane ever flown — a 100-foot wingspan, a takeoff weight of 25,000 pounds, and $5 of electricity to get it off the ground.

That one actually looks more like a real kernel with services like memory management, syscalls, processes and context switching. Nice work.

For a functionnal language, TCO is really a must have. How would you do the equivalent of loops without it ?

For those of us who are not used to the acronyms, DUI means Driving Under Influence. Similar term is DWI, Driving While Intoxicated.

The difference is surprising. Digging deeper, the US shop does not include shipping or taxes. To get an idea, I tried for CA and that already adds $12. That's already $38 without custom tax and VAT.

Fully charging the battery can cause it to age more quickly and lose capacity. Limiting charge level helps to protect it, especially when it's always connected to a power supply and don't need the battery that much.

Nice system built with only a couple of C99 macros. That small header also achieves matching for specific C types over the "sum types".

In the context of C99, isn't tagged union the more usual name instead of sum type?

Actually Qwant.com uses bing API too and has a warning at the top of their homepage.

From valetudo.cloud: Conga is a brand that uses existing robot designs with a slightly customized cloud.They’re not a robot manufacturer.

The paper explains how to get the profile of the key to 3D print the equivalent of key blanks. But one needs the cuts in the key and that part is secret that cannot be easily detected from a photo of the key hole.