A Turnkey Toolkit for Agentic Development with Flox
Test drive 30+ AI coding assistants on your own machine. At once. Without permanently breaking anything. Share what you build with others and it Just Works. Impossible, you say? Not with Flox!
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The Flox Blog
Guides and news from the Flox and Nix world
Latest Articles
Reproducible Development Environments in Any Repo with AI Agents and Flox: Part 1
In just a few seconds or minutes, an AI coding assistant can take any arbitrary repo and define it as a Flox environment that builds, tests, and runs reproducibly anywhere.
Reproducible Development Environments in Any Repo with AI Agents and Flox: Part 2
On your own or with an assist from agentic AI, it is shockingly simple to migrate projects into portable, reproducible Flox environments. This article Floxifies two real repos: Node-RED and n8n.
Reproducible Builds Made Simple with Nix and Flox
You can use Flox to build, package, and publish with pure Nix expressions. This is extremely useful when you need iron-clad reproducibility guarantees across time and space: what you build and ship locally builds and ships when you push it to CI.
Kubernetes, Uncontained Explained: Unlocking Faster, More Reproducible Deployments on K8s
Flox Kubernetes Uncontained lets you run imageless workloads on Kubernetes using declarative Flox environments in Pod templates for faster, more reproducible deployments.
With Kubernetes Uncontained, Flox Unlocks Faster, More Reproducible Deployments on K8s
Kubernetes, Uncontained lets you run imageless workloads on Kubernetes. Workloads start faster, run more reproducibly.
Migrating Python Projects and Runtimes to Flox
Modern Python development depends on reliable, reproducible isolation between projects so that Python versions, their dependencies, and required system libraries don't conflict or drift over time. Eliminating conflicts and drift is Flox's raison d'etre.
Create and Ship Reproducible Python Virtual Environments with Flox
Flox permits a more scalable approach to creating, managing, and shipping Python environments. Built on Nix, Flox is a cross-platform, cross-toolchain package and environment manager.
Next-Level Agentic Coding with Nix and Flox
If you’re vibe coding or prototyping, you can prompt Cursor, CoPilot, Claude Code, Codex, and other tools to quickly and reliably create Flox environments for workflows, and workloads, of all kinds.
About our Series B
We just announced a $25 million Series B funding round led by Addition, with participation from NEA, the D. E. Shaw group, Hetz, and Illuminate Financial. Read about it here.
Get NVIDIA CUDA Stacks That Travel Across Your SDLC with Flox
Get portable, reproducible CUDA environments and stacks with Flox. CUDA stacks you build locally travel as-is across your SDLC. Pull or clone them into runners in CI, then deploy them as containers, VMs, or lambdas to prod.
The Flox Catalog Now Contains NVIDIA CUDA
Teams can now easily build and deploy portable CUDA runtimes—including software like the CUDA Toolkit, Tensorflow, TensorRT, PyTorch, OpenCV, and other packages—that run anywhere, at any time.
Reproducible Development Environments for Python with Flox
Create reproducible Python environments with Flox. Declaratively define everything in one file and activate the same setup every time.
Enterprise Nix: It's Time to Bring Nix to Work
Flox unlocks the potential of Nix without requiring in-depth knowledge of it, and gives Nix experts a great way to enable their teams.
Composable Dev Environments: Layering and Composition in Flox
Layering and composition are two powerful ways to create and share Flox environments.
Package Managers and Package Management: A Guide for the Perplexed
The most important problem in packaging is how to efficiently, reliably, and securely packaging and distributing software so builds are deterministic and runs are portable and reproducible
Introducing Flox Build and Publish
With Flox Build and Publish, your local dev environment is the same as your CI environment, which are the same as your build and runtime environments. You use the same environment across the entirety of the SDLC.
Flox Named to Redpoint’s InfraRed 100
When a list as influential as the InfraRed 100 includes a company like Flox, we take it as validation of our founding belief: that reproducible runtimes and deterministic builds form the bedrock of scalable, reliable infrastructure—locally, in the cloud, wherever … and whenever.
Run ComfyUI Anywhere With Flox
ComfyUI is a node-based system for creating Stable Diffusion pipelines, and it offers endless possibility. Installing it with Flox is a breeze.
Reclaiming the SDLC
CI/CD is just a wrapper. To align and scale software delivery across the SDLC, teams need environments that are reproducible, auditable, and portable by default.
Flox Named Exclusive Media Sponsor of the Rock Bottom Curling Club's 2025 Season
Flox, the company bringing reproducible dev environments to teams and enterprises everywhere, is thrilled to announce its sponsorship of the Rock Bottom Curling Club.
The Experienced Novice Dives into Nix
Every new abstraction we add—containers, microservices, serverless—solves one problem but creates others. This is the story of how I discovered Nix and learned to love a deterministic approach to building software.
Get Your Preferred Secrets Manager in a Secure Cross-Platform CLI Toolkit
You can create a Flox environment with built-in, transparent auth via a third-party secrets manager, giving you CLI workflows that work the same way everywhere—locally, in CI, and in prod.
Nix and Containers: Why Not Both?
People often say they don't use Nix because it solves the same problems as containers. This is a half truth. Nix specializes in packaging software, containers excel at deploying it. They're best used together.
Gonna be at Scale 22x? Beam on to Planet Nix!
Kelsey Hightower will be one of two dozen speakers beaming onto Planet Nix, the annual gathering of Nix users and developers that’s co-located with SCALE in Pasadena, Calif., from March 5th-7th.
Get DeepSeek R1 on Your Laptop with Ollama and Flox
Our Flox Ollama runtime environment now includes a popular React-based web front-end, so it looks and behaves like ChatGPT. You can pull and run DeepSeek R1—then prompt it from your browser.
Is Flox an Alternative to Containers?
In the real world, Flox environments and containers neatly complement one another. The real magic lies in using Flox inside containers to fetch and manage runtime dependencies at build time.
Setting Up a New Laptop Made Easy with Flox
With Flox, you can easily replicate your preferred apps, tools, settings, and workflows across all your devices—including that brand new M4 MacBook Pro you’re getting for the holidays!
Flox and AWS: Taking the Chaos Out of Secrets Management
Do your teams need a reproducible, collaborative way to manage AWS secrets and authenticate with AWS services across disparate systems and environments? Fear not! Flox has got them covered.
Flox and AWS: Building, Testing, and Deploying Lambda Functions with Flox and AWS SAM
How to use Flox to install all the runtime dependencies you need to build and test your Lambda functions locally, and also containerize them for deployment to AWS Lambda.
Flox and Teams: Managing Your Code and Your Runtime Environment in Just One Place
Flox lets you manage both your code and your project environment’s runtime dependencies in the same repository, so your environment’s configuration becomes part of your codebase.
Flox and Teams: Using Shared Flox Environments
Teams are held back by the unpredictability of things they should be able to control. With shared Flox environments, working on a team becomes a completely different experience.
Flox and Teams: Onboarding Made Easy with GitHub and Flox
Onboarding onto something new is radically different when you use Flox to create and manage your dev environments.
Using Flox to Create Portable, Reproducible Go Environments
Flox’s superpower is reproducibility, so the Go dev environments you create on your Linux laptop will just work ... everywhere
Using Flox to Create Portable, Reproducible Node.js Environments
Flox makes it trivially easy to create and share portable, reproducible Node.js development environments using simple declarative methods.
Integrating Flox with CI for Consistent, Reproducible Dev Environments
By testing your environments as part of your CI workflows, you can guarantee they work the same way—everywhere.
Write Once, Take Anywhere $HOME Away from Home with FloxHub
With FloxHub, it’s easy to share and manage Flox environments, making them available to your teammates. Even better, FloxHub provides a one-stop shop for changing your environments.
Using Flox to Create Portable, Reproducible Python Environments
Flox makes it trivially easy to create and share portable, reproducible Python development environments using simple declarative methods.
A Real World Rust Project with Flox
See how Flox makes it easy it is to set up a real-world Rust project, complete with external tools and dependencies, using a simple manifest that works everywhere you do.
Hassle-Free Cross-Platform Dev with Flox
Flox makes it simple to create portable, cross-platform dev environments, but sometimes you also need to work around system- and architecture-specific package constraints. This article shows you how.
Flox 1.3: Simplified Service Management with Flox
It’s even easier to build beefy services like PostgreSQL into your dev environments now that Flox does the setup, teardown, and runtime management lifting for you.
Conflict Resolution Made Easy with Package Groups in Flox
Flox Package Groups give you an easy way to manage dependency conflicts, enabling you to create powerful fit-for-purpose dev environments you can take with you—anywhere.
Mastering Hooks and Profiles for Reproducible Flox Environments
Learn how you can use Flox's [hook] and [profile] sections to build, customize, and share rich, reproducible development environments.
Making Ruby Projects Easier to Share
Using Flox simplifies Ruby development by making it much easier to manage system-level dependencies, providing a consistent and reproducible Ruby dev environment across all platforms and architectures.
Extending Flox with Nix Flakes
Using Flakes in Flox give you more flexibility, allowing you to access or create unique package versions and custom configurations not available in Flox Catalog.
Extreme $HOME Makeover with Flox
With the Flox default environment, you can take your $HOME with you wherever you go...and keep your tooling consistent across systems and distros.
ML Modeling with FLAIM and Hugging Face Diffusers
Using Flox, it is easy to create reproducible environments for ML training and inference using Hugging Face Diffusers. Our FLAIM environment gets you there in a single command.
A Very Short Introduction to Layering in Flox
Flox environments aren't isolated; they layer upon one another, allowing you to combine them in endless ways while keeping your toolsets discrete.
Flox 1.1: Time Travel Across 100k+ Nix Packages
The Flox Catalog now contains over 3 years of history for each of its 100k packages, totaling over a million building blocks you can assemble however you like. Find everything you're looking for.
Intro to the Flox CLI, Part Three: Cloning, Pushing, and Pulling
The third part of this series shows how you can clone environments, layer them, and share them.
Intro to the Flox CLI, Part Two: Aliases, Vars, and Hooks
The second part of this series explores the ways you can use Flox environments to adjust the way software is configured and run.
Intro to the Flox CLI, Part One: Easy Environments
Flox makes it easy to create ephemeral environments and try new tools without making a mess all over your desk.
Why we built Flox
Flox CLI 1.0 and FloxHub is here! It's a good opportunity to reflect on our own experiences and the reasons we feel Flox is a part of the next generation of software development practices.
NixCon 2023: Recap & Videos
Nixcon 2023 in Darmstadt is a wrap! The team from flox was there, giving talks and having amazing conversations. In this post, find videos from our NixCon 2023 talks.
Rust & Nix: Parallels in Complexity Management
If Rust seeks to solve the problem of memory management at the program level, Nix seeks to solve dependency management at the build level, for any language. The solutions go hand in hand.
Contributing to Nixpkgs
We're big fans of Nixpkgs (obviously) and encourage others to contribute packaging and review. Nixpkgs is surprisingly easy to contribute to, but has its particular details. This is a guide to contributing your first PR to Nixpkgs.
Nixpkgs: The Big Recipe Book of Open Source
Anybody can view it, fork it, patch it, and use Nix to inspect the largest set of free software recipes in the world. The Nixpkgs package collection is core to the success of Nix.
Announcing the Flox Open Beta
Harness the power of Nix. Today we’re thrilled to release the flox CLI beta to the public as an open source project and announce a Series A funding round led by NEA.
Hash Collision
Github changed the format of their archives and this caused some systems and services that depend on the hash of the archives of a source tree to break.
Happy New Year!
Tired: year of the Linux desktop. Wired: year of Nix everywhere.
Building the Ladder: Flox at NixCon
At NixCon 2022, Flox Lead Engineer Tom Bereknyei talked about the mission behind Flox, focusing on the problems we can solve ... and how we intend to go about solving them.
Thank you NixCon!
Last week, the Nix community got together in person for the first time in 3 years, in Paris, for three days of presentations, discussion, and good times.
Announcing Flox
flox is a first-of-its-kind environment manager. Seamlessly create new polyglot developer environments. Make everything reproducible from package management to builds.
Nix: Pure Genius
I absolutely love it when hard problems are solved by challenging convention, peeling back layer after layer until pinpointing the core assumption that led us down the wrong path in the first place.