[marcprux]

You can make your own tap (which is just a GitHub repo) and manually clear the quarantine flag in a postflight step. E.g., see https://github.com/alacritty/alacritty/issues/8749

Users will need to `brew install myorg/mytap/appname` instead of just `brew install appname`, but I think that's the only real option at this point.

[noname120]

I’m worried app maintainers will start to indiscriminately run xattr -d no matter if the user actually wants that or not. There will not be any kind of standard way to do that so the experience will be very inconsistent between casks…

I hope Homebrew will start supporting hooks at a later point because it would allow users to automatically de-quarantine instead of having all maintainers add xattr -d garbage commands to all their casks.