Related: Search for software in Nix channels: https://lazamar.co.uk/nix-versions/ https://lazamar.co.uk/nix-versions/ Use case: Search for old software in ol

Related: Search for software in Nix channels: https://lazamar.co.uk/nix-versions/ https://lazamar.co.uk/nix-versions/ Use case: Search for old software in older Nix channels, e.g. earlier verison of binutils (bintools): https://lazamar.co.uk/nix-versions/?channel=nixos-18.09&package=binutils https://lazamar.co.uk/nix-versions/?channel=nixos-18.09&pack... Instructions for how to install/use this earlier version of bintools on NixOS: https://lazamar.co.uk/nix-versions/?package=binutils&version=2.23.1&fullName=binutils-2.23.1&keyName=binutils&revision=23befca742f67494f44dbe84070c9d56e7615c1b&channel=nixos-18.09#instructions https://lazamar.co.uk/nix-versions/?package=binutils&version... For example, use an old binutils (2.23.1) in an ephemeral shell: nix-shell -p binutils -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/23befca742f67494f44dbe84070c9d56e7615c1b.tar.gz https://github.com/NixOS/nixpkgs/archive/23befca742f67494f44... (In my opinion, a perfect complement for regular NixOS package search: https://search.nixos.org/packages https://search.nixos.org/packages)