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mirage-fuse
Expose any mirage Workspace (memory, S3, R2, HTTP) as a native macOS directory so Claude Code and any CLI tool can read and write remote files transparently.
Prerequisites
brew install --cask macfuse
uv add mirage-fuse
macOS Security Setup
- Open System Settings → Privacy & Security. Scroll to the bottom — you'll see:
"System software from developer 'Benjamin Fleischer' was blocked from loading." Click Allow.
- Restart your Mac. macOS requires a reboot to load the kernel extension.
- If you don't see the Allow button (Apple Silicon M1/M2/M3/M4):
- Shut down completely
- Hold power button until "Loading startup options" appears
- Click Options → Continue
- In Recovery: Utilities → Startup Security Utility
- Set to Reduced Security and check "Allow user management of kernel extensions"
- Restart, then retry step 1
Usage
CLI
# Mount an in-memory workspace as a real directory (writable)
mirage mount-fuse /data/:memory:// --mountpoint /tmp/ws/ --mode write --foreground
# (runs in foreground — open a new terminal for the next commands)
# In another terminal: any OS tool works natively
ls /tmp/ws/data/
echo "hello" > /tmp/ws/data/notes.txt
cat /tmp/ws/data/notes.txt
# Use Claude Code directly on the mounted path
cd /tmp/ws/data && claude -p "write a hello.py script here"
# Ctrl+C in the first terminal to unmount
For read-only S3/R2 access:
mirage mount-fuse /data/:s3://my-bucket --mountpoint /tmp/s3/ --mode read
claude -p "summarize the files in /tmp/s3/data/reports/"
# Ctrl+C to unmount
Python API
from mirage.backend.local.memory import MemoryBackend
from mirage.workspace import Workspace
from mirage.fuse.fs import MirageFS, mount
ws = Workspace({"/data/": MemoryBackend()}, mode="write")
mount(ws, "/tmp/ws/", foreground=True)
Supported FUSE Operations
| Operation | Description |
|---|---|
getattr |
File/directory metadata |
readdir |
List directory contents |
read |
Read file contents |
write |
Write file contents |
create |
Create new files |
mkdir |
Create directories |
unlink |
Delete files |
rename |
Move/rename files |
truncate |
Resize files |
open |
Open existing files |
release |
Close file handles |