This
I take @drirmbda’s point about speeding development by concentrating on the CLI, but @Traktion has it right when he says it is only the initial setup that is platform-specific. Our testnet audience for the next couple of months is likely to be CLI proficient, or at least not entirely CLIphobic - CLIcurious, anyone?
So a basic “How to Get Started” - with callouts for the Mac and Windows users should do for now.
In support of this, I give you SN Testnet review spreadsheet - feature request - #7 by VaCrunch