Flox vs FlyEnv

Flox gives developers a way to define reproducible software environments, including project packages, variables, and shell hooks, with configuration managed as code. It presents these environments as working across macOS, Linux, and WSL2. Its Nixpkgs-powered catalog contains more than 190,000 packages. FloxHub supports syncing and sharing environments, with package lists, earlier versions, and change logs available for review. GitHub Actions can install Flox and activate environments in CI workflows, while a VS Code extension supports package management, activation, and running services; the extension is also compatible with Cursor. Flox Skills are described as helping Claude Code, Codex, and skills.sh agents create environments, services, and builds and onboard repositories. Flox says environments include signed, hash-pinned software bills of materials and build provenance. The free Personal plan includes three private FloxHub environments and five private packages. Team costs $20/user/mo; Enterprise pricing is custom.

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.