For the macOS-able people suffering under the unfortunate SourceTree “upgrade” history: Fork!
Free in beta - assuming evil monetisation once it has ensnared enough of us.
Not fully featured yet, certain teething annoyances - like no option to show text output of commands (so progress of un-integrated features like LFS is pure guesswork).
No windows build out, but one is planned (supposedly, possibly, maybe - here why don’t you let us spam your email?).