I would check out the loopback framework: http://loopback.io/ http://loopback.io/ It's built on top of express.js and offers some of the more "Railsy" features

I would check out the loopback framework: http://loopback.io/ http://loopback.io/ It's built on top of express.js and offers some of the more "Railsy" features that express lacks. Also supports this idea of shared models between the client and server (going for that whole code reuse thing you're talking about). The company was also bought by IBM so I'm feeling pretty confident that it's going to keep getting regular updates and long-term support. They offer a bunch of enterprise-type features for the paid version, but the free one will be enough for your needs.