Zip slip smash is a combination of Zipper logic figshare arXiv:1405.6095 with dirIC.
It is described in ZSS: Zipper logic revisited.
As an article: Buliga, Marius (2021): ZSS: Zipper logic revisited. figshare. Journal contribution. https://doi.org/10.6084/m9.figshare.14769666.v1
This is related to the chemlambda projects.