Might also suggest looking at GNU Guix (as a packager manager or full distro). Then the whole system will be build on Guile Scheme too! I'm a recent convert and have been loving it.
Edit: and yes, their installer lets you select EXWM as your window manager right from the get go.
GNU Guix package manager is very interesting - https://guix.gnu.org/en/videos/2020/everyday-use-of-gnu-guix... ... Thanks for rec. There are so many interesting GNU projects that remain unpopular due to lack of publicity and / or poor UI / UX that it's sad when you consider the amount of man hours went into developing these projects.
Looks like they only serve webm video without fallback. So now when you aren't using a browser with webm it doesn't play the video and doesn't show any helpful message either. One could argue "but freedom!" and then we'd still have a terrible UX.
Edit: and yes, their installer lets you select EXWM as your window manager right from the get go.