One of my favorite features on the Switch is the ability to, at any moment, capture the last 30 seconds of gameplay and save it. It's a bit of a trick because of the performance implications of constantly capturing gameplay at a decent framerate, but Replay Sorcery manages to pull this off using JPEG framecaps stored in a memory-backed ring-buffer. Very glad to have an open source tool for instant replays!

GitHub - matanui159/ReplaySorcery: An open-source, instant-replay solution for Linux