FlyEnv vs nvm

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.

nvm is a free, MIT-licensed command-line tool for installing and managing Node.js versions. It is designed for installation per user and invocation per shell, and works in POSIX-compliant shells including sh, dash, ksh, zsh, and bash. Users can install specific versions, switch between them, set aliases such as a default, and use LTS aliases and commands to select long-term support versions. A project can specify its Node.js version in an.nvmrc file; documented shell snippets can support automatic switching. During installation, nvm can reinstall global npm packages from another installed Node.js version. With the --offline flag, it can install a version that was previously downloaded or cached without network access. The project documents use in Docker, including an example for CI/CD jobs. On Windows, nvm can work through WSL and may work with Git Bash or Cygwin depending on the environment. Fish shell is not supported, and the project points users to community alternatives. The project states that only the latest nvm version is supported.