RSpec: How to run the feature specs after all other specs

We have a rather complex integration spec setup with capybara and chrome. This leads to slow feature specs.

It would be nice if the feature specs would be executed after all other specs. Because it takes rather long time for a integration test to "boot" and find a bug which a simple request or unit test would have found way faster before.

But all tests should be ordered randomly by seed like before. And it should still work with simplecov.