- cl-fswatch - Wrapper for fswatch, a cross-platform file change monitor
- cl-fuse - CL-FUSE provides Common Lisp bindings for FUSE (file system in user space)
- clufs - Common Lisp User Space File System
- purgatory - A client implementation of the Plan 9 File Protocol
- query-fs - Query-FS is a FUSE-based filesystem that presents database queries as filesystem trees
filesystem