Could you please explain how to define and use acronyms properly in this template? Thanks!

[meluso]

This... is a good question. Working on it! I know it uses the \acro{}{} command inside the \abbreviations{} command. So it would be something like this:

\acronyms{
    \acro{TLA}{Three Letter Acronym}
    \acro{SOA}{Some Other Acronym}
}

BUT, it's been a couple years and it's not displaying like I'd expect. So sit tight! If you happen to figure it out in the mean time, let me know!

[CreLox]

Thanks! That helps a lot. It would be really helpful if the main.tex template has examples like this.

The reason why they do not show up right away is probably that when thesis-umich.cls imports the acronym package, it specifies that

\RequirePackage[printonlyused]{acronym}

Therefore, either the acronym has to be used properly (by syntaxes defined in the acronym package) in the text or [printonlyused] needs to be removed.

[meluso]

Huge help, that saved me a bunch of time, thank you! I've removed [printonlyused] so now your acronyms should appear. I've also added that example above to the template, and the Overleaf version will be updated shortly. I've added you to the contributors list for your help, thank you!