Re:Ask HN: Why not Flex?
by sunkencity on Friday September 04, 2009 @12:51PM
(#805182)
I like flash/flex when it's used as part of a site, to display video, a game, or some presentation. There are too many benefits from using standard HTML as to not use it for the main plumbing of a site.
You can definitely use Rails with Flex. Flex is not a server side language or framework. It can interface with all of them really well through web services. Heck, I'm pretty sure Flex can even inject and call JavaScript functions on your pages. Rails can render things to XML amazingly well, and you can still build an HTML response as well while maintaining the functionality of the Flex application.
Your co-founder is comparing apples to oranges, but whatever works for you all is great. Just don't let the tools limit you.