For model integration and runtime behavior, use the edge-ai/applications/gesture_recognition application and follow the Gesture Recognition documentation.
If you have built your own model on the Nordic Edge AI Lab, replace the nrf_edgeai_generated folder in edge-ai/applications/gesture_recognition/src/ with the one from the downloaded archive, then rebuild and flash.
Make sure to update the main.c, inference_postprocessing.c, and inference_postprocessing.h files to match the classes your model was trained to recognize and to adjust the postprocessing logic accordingly.