[aseipp]

Yes, it's a relatively recent innovation, but it's pretty awesome. Symbol server has always been one of the things I actually liked about Windows development, which didn't require installing debug packages for every DLL before the bugs happen and you catch them. https://sourceware.org/elfutils/Debuginfod.html

NixOS has had a similar thing for a while called "DwarfFS" where a FUSE filesystem instead resolves filenames back to the package that needs to be installed, which was around for a while before debuginfod, but very NixOS specific. I'm happy this is now so much more widely available as of recently.