# Vercel Sandbox now supports FUSE-based filesystems By Steven Van · 2026-07-03 Vercel Sandbox can mount S3 buckets and other FUSE-compatible storage as a local filesystem path, using sudo to install the driver. [Vercel]() Sandbox now supports FUSE (Filesystem in Userspace) drivers, so a running Sandbox can [mount remote storage]() such as an S3 bucket, a network filesystem, or another FUSE-compatible driver as a regular path. Code inside the Sandbox then reads and writes through that path instead of calling a storage API directly. The docs walk through mounting an Amazon S3 bucket with Mountpoint, the official FUSE driver for S3: install the driver, create a mount directory, then mount the bucket. Because FUSE runs as a system-privileged process, the install and mount commands run with **sudo**. - Stream large datasets directly from object storage without copying them into the Sandbox first. - Share state across Sandboxes through a common filesystem. - Run tools that expect POSIX paths against remote sources. Mounting this way exposes AWS credentials inside the Sandbox for the life of the process, so Vercel recommends a narrowly scoped, short-lived IAM role. To keep credentials out of the Sandbox entirely, the docs also show routing S3 requests through a proxy that signs them with a Vercel Function instead. [![]()]() ![Vercel]() Vercel The platform for frontend developers — deploy, preview, and scale web apps and AI agents with zero config. [View Vercel →]() Sources [Original source]() [Read Vercel Sandbox now supports FUSE-based filesystems on Creators Toolbox]() --- Canonical source: https://creatorstoolbox.com/blog/vercel-vercel-sandbox-now-supports-fuse-based-filesystems