You are in the target group for Arch Linux. Highly recommended.
While I can't see when the original blog post was submitted, I know this forum post was posted 2 hours ago. Are you sure you would benefit from updating even faster?
EDIT: In any case, you could use the AUR package that points directly to the git repo.
I doubt it.
> My experience with repo/package models suggests it very much would not.
The Nix package manager would. However, I have no idea if their packages are kept up-to-date like that.
My cursory search on the interweb did not yield any promising results on the Arch wiki either. Happy to be corrected, of course.