Ask HN: How do I protect myself if I open source some code?

Pretty much every common open source license I'm aware of includes some all caps disclaimer along the lines of "this software is provided as is without any kind of warranty etc etc" specifically for this purpose. To my knowledge it's held up well for the millions of software authors who have used it so far. I'm not a lawyer but I personally think that's enough to protect you. If you're also assigning the copyright to an LLC that you haven't "pierced the veil" of, then you have way more protection than the vast majority of OSS devs, all of whom are already well protected.

Here's the OpenBSD license template:

https://cvsweb.openbsd.org/src/share/misc/license.template?r...

IANAL, but BSD, MIT, and Apache licenses are quite clear that you aren't legally liable for anything.