Adrián Pérez @aperezdc@mastodon.social

(Also: C++ is terrible, please don't use it if you can avoid it.)

#TIL that it's kind of undefined behaviour to have a C++ program that uses “std::optional<Foo&>” to have an optional reference. As a matter of fact, both libstdc++ (the GNU standard library) and libc++ (Clang's) disallow such template instantiation.

On a related note, somehow “boost::optional<>” allows this and works, which is... surprising.

It's kind of wild that hardware on #OpenBSD will usually work perfectly if supported or not at all, but there's no middle ground—which is fine, of course.

Meanwhile in Linux everything is a bit wonky and each device may (or may not) need a number of odds and ends all held together with chewing gum and paper clips.

Hot take: maybe this is how Linux jobs are created and perpetuated. Nobody really wants to get things to work well.

My laptop has one of those built-in Sierra Wireless 3G/LTE modems:

- #Linux: Kind of usually works with NetworkManager + ModemManager, device won't work out of the box and is not recognized as a modem, and it needs to be reset with usb_modeswitch every frigging time that the computer boots or comes back from suspend-to-RAM.

- #OpenBSD: “Hey, I see you have a modem, by the way it's supported by the ‘umb’ driver… Me: “ifconfig umb0 apn internet up” — I can't believe this may work out of the box!

As expected, the DC boost converter works much better with the solar panel installation at the cottage. In the middle of the day it even manages to charge the battery.