Langohr has a mailing list. Feel free to join it and ask any questions you may have.
To subscribe for announcements of releases, important changes and so on, please follow @ClojureWerkz on Twitter.
If you find a bug, poor default, missing feature or find any part of the API inconvenient, please file an issue on Github. If possible, try to explain what behavior you expected and why. Bonus points for contributing failing test cases.
Langohr uses Leiningen 2. Make sure you have it installed and then run tests against supported Clojure versions using
lein2 all test
Then create a branch and make your changes on it. Once you are done with your changes and all tests pass, submit a pull request on Github.
Please take a moment to tell us what you think about this guide on Twitter or the Clojure RabbitMQ mailing list
Let us know what was unclear or what has not been covered. Maybe you do not like the guide style or grammar or discover spelling mistakes. Reader feedback is key to making the documentation better.