CHONK 1.0 is a prototype of Landscape Evolution Model using graph theory and cellular automata to provide a flexible framework to simulate the evolution of topography and associated fluxes through space and time. For example, crossing these two methods allows for efficient tracking sediment provenance through complex landscapes (e.g. where lakes complexify the source-to-sink pathways) and that no matter hich process equation is implemented within the framework (e.g. hillslope processes, detachment limited river incision, ...). This repository contains the code as published in its first version, see this preprint for more information: https://doi.org/10.5194/egusphere-2022-1394