Inspired by Plone since its beginning, Guillotina is now a production-ready stack allowing to build powerful applications. This talk will present the Onna platform (100% based on Guillotina), and it will give a focus on the frontend development specific practices we have defined to with a headless solution. It will also be an opportunity to introduce interesting libraries and tooling we are maintaining (mr-developer for frontend, traversal for frontend, Pastanaga UI, Guillotina admin UI, etc.), aiming to bring the Plone wisdom to the frontend world.