ksh tab completions and other nice-to-haves

I came across this [1] nice post detailing how to customize the ksh(1) experience. I came for the tab completions but it has some general ksh wisdom.

Sharing it as ksh(1) is the default shell on OpenBSD and it's a great shell in general.

[1] https://www.vincentdelft.be/post/post_20210102