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
It's always fun to spread new research around the community! I remember reading PwD and thinking it was just so cool as an algorithm, though the performance concerns were a bit of a turn-off. Still, I always like to talk to people about it because I just think it's such an elegant approach to the problem.
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
