brew install fails with 'gitfs has been disabled because it requires closed-source macFUSE!'

[will-ks]

Running brew install gitfs results in the error:
Error: gitfs has been disabled because it requires closed-source macFUSE!

Using macOS Big Sur 11.5.2, M1 chip.
Brew version:

Homebrew 3.2.9
Homebrew/homebrew-core (git revision 33654f50a2; last commit 2021-08-23)
Homebrew/homebrew-cask (git revision 653d669643; last commit 2021-08-23)

[cuichacha]

Same problem here!

[gwzbenjamin]

same here

[parweb]

same same

[chaaridev]

same

[gromgit]

I've taken over maintenance of all macOS FUSE formulae in my own tap, until macFUSE (hopefully) becomes open-source again. For gitfs, you can now brew install gromgit/fuse/gitfs-mac.

Please read the README before asking any questions, especially about why the formulae are named funny. It would save us all a good deal of time. Thanks much!