Boxxy

github.com/queer/boxxy Linux Apps Open-source projectOpen source

boxxy isolates misbehaving Linux applications and limits where they can place files.

github.com/queer/boxxy
Boxxy homepage screenshot

About Boxxy

Boxxy is an open-source Linux utility that isolates misbehaving Linux applications and redirects their file read/write operations to user-specified locations, using Linux namespaces for functionality. It supports context-dependent path redirection rules, optional immutable filesystems outside specified rewrite paths, automatic home directory rule suggestions, project-local configuration files, .env file loading, environment variable injection via rules, daemon mode for background processes, and command-line rule passing. It is Linux-only, requires the newuidmap package (not preinstalled on all distributions), cannot run sudo inside its isolated environment, and is in early 0.x development with maintenance currently paused aside from accepting pull requests and reviewing issues.

Key features

  • Redirects application file read/write paths to user-specified locations
  • Supports context-dependent rules for different directories
  • Optional immutable filesystem outside specified rewrite paths
  • Scans home directories to suggest automatic path redirection rules
  • Loads project-local boxxy.yaml and .env configuration files
  • Injects environment variables via defined rules
Best for: Linux users who need to redirect misbehaving applications' file paths, enforce XDG compliance, or separate project-specific configurations without using symlinks.
Good for
  • Uses Linux namespaces for low-overhead application isolation
  • Supports context-dependent configurations that many apps lack natively
  • Eliminates the need for symlinks to redirect application file paths
Watch out for
  • Linux-only, cannot run sudo inside the isolated container
  • Early 0.x development stage with no stability guarantees
  • Primarily tested for the maintainer's personal use cases

Boxxy at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Platforms
Linux
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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Boxxy FAQ

What system package is required to run Boxxy?
Boxxy requires the newuidmap package, which is not preinstalled on all Linux distributions.
Can sudo be used inside a Boxxy-isolated application?
No, sudo cannot be used inside the Boxxy container.
What is the current maintenance status of Boxxy?
The maintainer is on a break from open-source maintenance due to health reasons; pull requests are accepted and issues are reviewed, but there is no guaranteed response timeline.
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