is this project still being maintained?

[ppcano]

Or on the other hand, it is recommended to use everyauth with a custom backend solution.

lg

[bnoguchi]

It's written in such a way that it inherits every upgrade to everyauth (minus new oauth providers added to everyauth). For example, a recent commit to everyauth that adds mobile oauth dialog support to the facebook module, should be available for free in mongoose-auth via:

    // STEP 1: Schema Decoration and Configuration for the Routing
    UserSchema.plugin(mongooseAuth, {
        // Here, we attach your User model to every module
        everymodule: {
          everyauth: {
              User: function () {
                return User;
              }
          }
        }

      , facebook: {
          everyauth: {
              myHostname: 'http://localhost:3000'
            , appId: 'YOUR APP ID HERE'
            , appSecret: 'YOUR APP SECRET HERE'
            , redirectPath: '/'
            , mobile: true // NEW CAPABILITY INHERITED FROM EVERYAUTH
          }
        }
    });