Overview

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Flox is a virtual environment and package manager all in one. With Flox you create development environments that put you into reproducible subshells with dependencies provided and configured for you. Even better, these environments layer so you can prepare different environments for different contexts and stack them when needing to work across contexts.
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- One-Command Project Setup
- Your Tools, Everywhere
- Environments With All the Comforts of HOME
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Container
- Amazon ECS
- Amazon EKS
- Amazon ECS Anywhere
- Amazon EKS Anywhere
Container image
Containers are lightweight, portable execution environments that wrap server application software in a filesystem that includes everything it needs to run. Container applications run on supported container runtimes and orchestration services, such as Amazon Elastic Container Service (Amazon ECS) or Amazon Elastic Kubernetes Service (Amazon EKS). Both eliminate the need for you to install and operate your own container orchestration software by managing and scheduling containers on a scalable cluster of virtual machines.
Version release notes
Improvements to auto-activate (experimental)
[!NOTE] Auto-activate is behind a feature flag. Enable it with flox config --set features.auto_activate true (or FLOX_FEATURES_AUTO_ACTIVATE=true).
- Declining the auto-activation prompt for an environment is now remembered, so you are no longer prompted for it again.
- Re-allowing a previously denied environment in the middle of a nested auto-activation stack now restores it to its correct position in the prompt and PATH, matching what a fresh cd into the directory produces.
- The auto-activation prompt no longer hangs when using the fish shell.
Features
- flox run now supports running packages from custom catalogs (e.g. flox run -p owner/pkg -- ...), using an authenticated download path.
Fixes
- flox gc and flox envs no longer fail with Failed to fetch environment: ref not found when a deleted environment is still referenced by the local environment registry.
- flox install no longer prints the "additional outputs" hint when you explicitly selected outputs (pkg^.. or pkg^out,man).
- The "Your FloxHub token has expired" reminder is now shown once per shell session instead of repeating for nested flox invocations.
- flox install pkg^bad with an invalid output name now shows a clear error instead of a raw Nix build trace.
- flox activate no longer crashes on a rare race in activation cleanup.
- Installing flox via the Nix module no longer emits a 'system' has been renamed evaluation warning.
Download Links
- DEB (x86_64-linux)
- DEB (aarch64-linux)
- RPM (x86_64-linux)
- RPM (aarch64-linux)
- OSX (x86_64-darwin)
- OSX (aarch64-darwin)
[!NOTE] You can find the SHA256 checksums for Flox 1.13.2 and SHA512 checksums for Flox 1.13.2 online.
Additional details
Usage instructions
Welcome to the Flox tool. Try out a few commands:
- flox search fastfetch
- flox install fastfetch
- flox activate -- fastfetch
- flox edit to make changes to the manifest.toml, add/remove packages and set hooks!
See more comprehensive documentation and a tutorial at https://flox.dev/docs/ .
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AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.