[krobelus]

> I don’t yet love how history works. Four months in, I still can’t get used to not having ctrl-r.

I think it's worth getting used to but there are plugins like fzf that implement ctrl-r

> `BROWSER=otherfunc aws sso login`

Aliases/functions are generally not visible in child processes. I guess it worked if the "aws" tool invoked BROWSER via a bash process that either sources aliases from a bashrc, or reads exported functions ("export -f otherfunc"). It would work for fish too if "aws" invoked BROWSER via fish (though fish doesn't need exporting, since functions are also loaded in non-interactive shells).

I recommend that you make otherfunc a script, then it will work everywhere (also with arbitrary wrappers like strace, gdb).