Ipyfastscape is interactive widgets for topographic data analysis and modelling in Jupyter notebooks. While ipyfastscape is tightly integrated with fastscape, it also integrates very well with any data in the form of an xarray dataset or any model created with xarray-simlab. The widgets available here are built on top of libraries of the jupyter's widget ecosystem such as ipywidgets and ipygany. You can reuse those high-level UI components as-is within notebooks (embedded mini-apps) or for building interactive dashboards that you can then publish as standalone web applications.