Another way might be to select a trade before the market closed but hold it in anopenbrowser for execution until the direction of after hours trading became clear.
This has been a boon to two small browser-makers, Opera, a Norwegian software company, and Mozilla, which developed the Firefox browser based on an open-source version of Netscape.
You can even open up an Internet Explorer session inside a Chrome browser tab, and then connect to the applications that require Java and run them on the Chromebook.
Natrium 42's homebrew kit is anopen robot platform that lets you control your RoboDS (pictured right) with an NDS WiFi connection through a web browser interface.
This would presumably be in the form of a browser-based web conferencing platform based on an open-source platform (and would not require the installation of any software).