Libre value smoothing
It uses Savitzky Golay with filterwidth which is quite an agressive smoothing. When smoothing for eg 8 hours (maximum amount of readings that Libre can send), high peaks (or dips) may be strongly flattened. His would only be applicable if Libre hasn't been read for longer period. If the Libre is read every 5 minutes, then it's only the last value that will be smoothed in a less agressive way
