Alas, ost doesn't use [lev](https://github.com/lml/lev) yet but I guess there's no time like the present :-)

@lakshmivyas see [routines](https://github.com/openstax/accounts/tree/master/app/routines) and [handlers](https://github.com/openstax/accounts/tree/master/app/handlers) in Accounts for some examples.

The lev README has a good intro, but I'll try to update it with some more of our recent thoughts and conventions.