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.
Highlights
- 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
[!WARNING]
- [breaking change] It is recommended to exit all current activations or reboot after installing.
Features
- Added hook.on-deactivate to the manifest. The on-deactivate script is run in Bash when the last activate of an environment exits.
- flox publish now detects an already-published build before building the package, so re-publishing an unchanged source and closure returns immediately instead of paying for a full build first.
- flox service was added as an alias for flox services.
- Added an auth_notifications config option. Set it to false (via flox config --set auth_notifications false or FLOX_AUTH_NOTIFICATIONS=false) to quiet the "You are not logged in to FloxHub" reminder. Commands that require authentication still fail with an explanation, and this does not control warnings about authentication when connecting to the catalog.
- Unauthenticated users are now warned that resolving packages will require authentication to FloxHub in an upcoming release. See https://go.flox.dev/auth for more information. The warning appears only when the CLI actually contacts the catalog, and at most once every 8 hours. Use -q to suppress it.
Fixes
- If an environment variable is set prior to activating an environment with a variable in [vars], a second activation of that environment still sets the variable from [vars]. Closes https://github.com/flox/flox/issues/3761
- When activating an environment in one shell on top of a second environment but on top of a third environment in another shell, environment variables from the second environment no longer leak into the second shell.
- Experimental plugin scripts can now read variables set in the manifest's [vars] section: activation sources Flox's own profile.d scripts first, then exports [vars], then sources plugin-provided profile.d scripts. A variable exported by a plugin script takes precedence over a same-named [vars] entry.
- Clearer errors and guidance are now provided when packages and package outputs have file collisions.
- Locking a package whose systems names a system missing from options.systems now suggests adding that system to options.systems.
- flox push now works when temporary editor files are present in .flox/env.
- fish and tcsh now honor $FLOX_PROMPT when NO_COLOR is set.
- flox build now fails with a source location when a Nix expression cannot be parsed or read, or when it uses the catalog namespace in a way that cannot be analyzed, instead of writing a lock with missing catalog inputs.
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 1.15.0 and SHA512 checksums for Flox 1.15.0 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.
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