CoffeeScript and LESS Support
Linked File Support
Since Visual Studio 2010 you can add an existing file to a solution by adding a link to that file from another location or solution. SPFastDeploy now supports deploying these types of files when saving from SharePoint app model solutions. Linked files are denoted by the shortcut icon.
Be More Productive with Web Essentials and SPFastDeploy 3.5
Deploying your changes to a SharePoint App automatically when saving makes SharePoint App Model development easy. Now with SPFastDeploy 3.5 you can take this time saving feature and combine it with the web development tools from Web Essentials saving even more time. If you want support for other web development languages such as SWEET.js or SASS then please put your request in at the SPFastDeploy Q/A section of the Visual Studio extensions home page.