vic/nix-versions

---

vic/nix-versions.json

{
  "defaultBranch": "main",
  "description": "Search nix packages versions - and minimalist devshell and version manager built on nix - Flake generator for version pinned packages.",
  "fullName": "vic/nix-versions",
  "homepage": "https://nix-versions.oeiuwq.com",
  "language": "Go",
  "name": "nix-versions",
  "pushedAt": "2025-11-21T22:34:25Z",
  "stargazersCount": 29,
  "updatedAt": "2025-11-21T22:34:29Z",
  "url": "https://github.com/vic/nix-versions"
}

nix-versions - All versions of nixpkgs at your fingerprints.

nix-versions is a CLI tool that can help you find the nixpkgs revision for historical versions of a package.

It does so by integrating the following services available to the nix ecosystem:

• https://search.nixos.org (via the nix-search-cli elastic-search client). Used to search packages by program name or attribute name wildcards.

• https://nixhub.io - as default backend for package version resolution.

• https://lazamar.co.uk/nix-versions/ - search package versions by nixpkgs channel.

• https://history.nix-packages.con - another community provided versions index.

Any of these backends can be selected as default or combined on a per-package basis.

It also features version constraint filters, allowing you to restrict packages to a known set of compatible/stable versions that work with you.

When used in conjuction with nix shell and direnv, nix-versions, it can also double as a plain-text development shell and tools version manager with automatic environment loading targeting people new to nix, but familiar with tools like npm, rvm, asdf, mise.

Our website provides a flakes generator for version-pinned packages. You can use these generated flakes as inputs on your own flakes, allowing version constrained package updates.

Read more at our website

https://nix-versions.oeiuwq.com