Can run Sage using virtualisation software
You can run Sage on MacOS using virtualisation software - I use Vbox which is free. Sage also offer an online version, which I've not tried. I am assured by our IT administrator that some of his clients have been running networked versions of Sage on multiple terminals using vmware for years. We are going to implement something like that very soon having given up on some MacOs accounting applications which are just not sufficiently developed to run a business in excess of £1m turnover.
But as a CEO I hate Sage and so do many others. It has been around so long and has its really annoying difficulties and for all that money that they make you would have thought it would be able to do anything. Even so, like MS it appears to have got such wide acceptance that everyone knows how to use it, just about and just put up with its problems. For instance its poor analytical capabilities are got round by most in the accounting industry by exporting to a decent spreadsheet or database application and reprocess the data very quickly there.
Sage is pretty much tried and tested for data entry, integration with ebanking software, purchase order processing etc. It has always been not very good at management reports, weak at cash analysis, weak at departmental analysis and so on. I'll bet the software developers have never been CEO of anything.