Introducing a new, heavy dependency

[wrobelda]

I am a maintainer of KMyMoney, of which brew formulae are not in Homebrew repo yet. We depend on qt5 GUI backend in aqbanking/gwenhywfar, both of which are already in Homebrew.

At some point in time all the additional GUIs were removed from the formula ([1], [2]). There's no information why this happened – I assume it's because both gtk2 and qt4 were outdated, although they were also marked as ":optional". My understanding is that :optional (and :recommended) are currently not allowed in Homebrew/homebrew-core.

I want to add qt5 support, however, so that KMyMoney works as expected. Is it OK or is it this too big of a (non-optional) dependency? How to proceed here?

[1] Homebrew/homebrew-core@325bdeb#diff-cb11083137f0e460288c66a5101ba82af15f78cee1fe430921379f2154fd5f5e
[2] Homebrew/homebrew-core@36e7c3a#diff-cb11083137f0e460288c66a5101ba82af15f78cee1fe430921379f2154fd5f5e

[SMillerDev]

There is one way to find out. Make a pull request and see what the maintainers say.