FlyEnv vs Nix
FlyEnv
flyenv.com
Nix
nixos.orgSide by side
| Figure | FlyEnv | Nix |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 1 |
| Spec score · Development Environment Managers | 8.2 (#13) | 8.3 (#11) |
| Spec score · Development Environment Management Tools | 8.1 (#8) | 8.2 (#6) |
| Intended users | The terms grant use for personal or business development purposes and describe FlyEnv as intended for developers. | The documentation identifies developers, test engineers, DevOps engineers, system administrators, data scientists, students, and open source enthusiasts as likely users. |
| Purpose | FlyEnv is a cross-platform desktop application for managing local development environments, including runtimes, databases, web servers, AI tools and other local services. | Nix is a tool for package management and system configuration that supports reproducible, declarative, and reliable systems. |
| Support | Support is provided primarily through email and community channels, with GitHub and Paddle available for support-related needs; phone support is not available. | The project provides community help through its official forum and Matrix space, and lists consulting companies for professional support. |
Plans
In their own words
FlyEnv
FlyEnv is a desktop application for managing local development environments on Linux, macOS and Windows. It supports container-free local workflows and offline operation. Developers can install and switch among language runtimes including PHP, Node.js, Python, Java, Go, Ruby and Rust, then scope runtime settings to a project. Those settings are stored in a.flyenv file and control the toolchain used by terminals, editors and run commands. The local-site module includes settings for custom domains, document roots, server ports, PHP binding, rewrite rules, reverse proxies and HTTPS. Listed database integrations include MySQL, PostgreSQL, MariaDB, MongoDB, Qdrant, ClickHouse and Neo4j; its AI integrations include tools and services such as Codex, Ollama and Claude Code. The free plan includes 3 local sites and 3 custom projects per runtime. The Pro License costs 10.00 USD once and includes unlimited local sites and custom projects, with one active device at a time. FlyEnv is intended for personal or business development use.
Nix
Nix is a free package management and system configuration tool for creating reproducible, declarative systems. It builds packages in isolation to avoid undeclared dependencies and help keep builds consistent across machines. Users can define and share development and build environments across projects and languages, install software from URLs or source code, and use virtual machines for integration testing. Nix supports dependency resolution, lockfiles, workspaces and offline installation; its package formats include Nix expressions, derivations and flakes. The Nix Packages collection offers over 140,000 packages. The wider ecosystem supports remote builds and deployments, binary caches, cross compilation, atomic upgrades and rollbacks to earlier package versions. Nix runs on Linux and macOS, and on Windows through WSL2; multi-user Windows installation requires WSL systemd support. Documentation includes guides for GitHub Actions, Docker images, Terraform deployment, SSH provisioning and distributed builds. Nix is aimed at people familiar with command-line interfaces and plain-text editors, including developers, test engineers, DevOps engineers, system administrators, data scientists, students and open-source enthusiasts. It has no paid plan listed.