home: true title: Home

actions:

• text: Get Started link: /getting-started/installing.html type: primary

• text: Visit at GitHub link: https://github.com/vic/nix-versions type: secondary

features:

• title: Works for everyone, at any level. details: |
  As a friendly CLI to explore available versions.
  
  As a tools version manager and development shell.
  
  As a flake generator for pinned-version packages.
• title: Combine latest and dependable, stable versions. details: |
  Keep your compilers and tooling at known, stable releases that work with your current code.
  
  And use the most recent version for other nixpkgs.
• title: Plays well with existing tools. details: |
  Friendly with nix shell, direnv and advanced nix environments like devenv and devshell.
  
  Usable as an input for any Flake and with fetchurl for non-flakes.
• title: Powered by nix but requires no-wizardy™ details: |
  All the advantages of Nix without much effort. Reproducibility, security checksums, sandboxed builds, caching, remote building.
  
  Re-use your existing .ruby-version, .node-version project files.

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Try it now.#

As a command line utility#

nix run github:vic/nix-versions -- 'emacs@~27 || ~29' --all

As a flake.nix generator#

You can use our flake.zip endpoint as an input on your own flake.nix or devenv.yaml.
There's also flake.nix endpoint that outputs a text file.

nix develop 'https://nix-versions.oeiuwq.com/flake.zip/cowsay@latest/go@1.24.x' --output-lock-file /dev/null

As a direnv shell generator#

Our use_nix_tools.sh endpoint can get you a direnv shell in no time!
You don't even need nix-versions installed, just nix and direnv.

direnv fetchurl "https://nix-versions.oeiuwq.com/use_nix_tools.sh/ruby/cowsay"