Juri Linkov wrote:
>> I'm trying to get the compile prompt to suggest completion based on past
>> commands I've run.
> You can use 'C-x <up>' in the compile prompt to complete on past commands.

This is indeed a lot closer to what I want, however it still lacks a lot 
of things compared to my solution.

Unless there is some package/mode I don't know about, It's a lot less 
dynamic, for instance I can't keep typing to reduce
possible items.
My solution can leverage all of vertico and friend, and in general 
provides an experience that's the same as other minibuffer prompts, like 
M-x.