Also based on Ribbon, the BuRR filters: https://arxiv.org/pdf/2109.01892 https://arxiv.org/pdf/2109.01892 which seem to get very close to the theoretical optimu

Also based on Ribbon, the BuRR filters: https://arxiv.org/pdf/2109.01892 https://arxiv.org/pdf/2109.01892 which seem to get very close to the theoretical optimum, 0.1%-0.5% overhead comparatively