Gravitational wave templates are essential for their detection, by providing the means to extract the physical signal from the inherent noise of the instruments. Most numerical relativity codes build gravitational wave templates by calculating the signal at a finite radius, then extrapolating it towards infinity, where the detectors are located. These simplifying assumptions limit the precision and accuracy of the gravitational wave signals and might hamper future detections by the next-generation ground-based interferometers, who will require a ten-fold increase in accuracy. The Cauchy Characteristic Extraction (CCE) could meet this challenge, because it extracts the gravitational waves without simplifying assumptions, in an asymptotically flat frame at future null infinity, corresponding to the location of distant observatories. Because it holds this promise, this method is of high interest for the field and is in continuous development, but it lacks formal documentation. There are many scientific papers reporting on its improvements, but they might be overwhelming and difficult to understand by new users. With this talk we hope to provide an overview of the CCE method, the way it is implemented in the PITTNULL Code, as well as a guide on how to use it within the Einstein Toolkit infrastructure to extract gravitational waves.