Filesystem is great. It’s insane it took so long.

Optional is nice but slightly awkward in a non-garbage collected language.

IMO variant is one of those things that should not exist in standard.

It tries to implement discriminated union in C++ but that feature is lame without true pattern matching. And you can’t implement pattern matching without thorough syntax level support. So in my books it’s in this academic “let’s pretend a while we are using some other language…” category.

It’s _occassionally_ convenient for sure.