make sure you have osx/macFUSE installed (if not -- $ brew install macfuse)

get formula location: $ brew formula $PACKAGE_OF_INTEREST

open formula in editor-of-choice (e.g. $ vi $( brew formula $PACKAGE_OF_INTEREST )) and comment out the section containing disable

in my case, that means changing to:

​

  # on_macos do                                                                 

  #   disable! date: "2021-04-08", because: "requires FUSE"                     

  # end

install as usual: $ brew install $PACKAGE_OF_INTEREST