The company I work for offers remote access to Mac/Win/Linux - We've been offering Mac Sierra (beta) for a while with Safari 10 installed: https://testingbot.co

The company I work for offers remote access to Mac/Win/Linux - We've been offering Mac Sierra (beta) for a while with Safari 10 installed: https://testingbot.com/support/getting-started/browsers.html https://testingbot.com/support/getting-started/browsers.html which you can control straight from your browser.