this document describes design notes for SWH FUSE, which is still under active development and hence **not yet available** for general use. The Software Heritage {ref}data model <data-model> is a Direct Acyclic Graph (DAG) with nodes of different types that correspond to source code artifacts such as directories, commits, etc. Using this FUSE module (SWH FUSE for short) you can locally mount, and then navigate as a (virtual) file system,