Thanks for mentioning "Parsing with Zippers"! I read "Parsing with Derivatives" last week and wondered if that could be taken further. The paper can be found here: https://dl.acm.org/doi/10.1145/3408990
As for PwZ, I know one of the authors so maybe I'm a little biased, but I also thought his ICFP talk was quite good. It's here: https://youtu.be/fakSKvP9yaM?t=6180