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Installation

chrs is easy to install, and works on many platforms.

Direct Download​

You can download chrs from GitHub Releases. Get the latest version here:

https://github.com/FNNDSC/chrs/releases/latest

This is the easiest installation method, however there is no mechanism for automatic updates.

Using Pip​

Users who already have Python can install chrs using pip.

pip install --user chrs

If necessary, add the bin folder to $PATH:

echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc

cargo binstall​

cargo binstall is a convenient solution for installing pre-compiled binaries using the Rust cargo package manager. First install cargo-binstall, then run

cargo binstall chrs

Build from source​

Use cargo to get and build the package from source, from crates.io:

cargo install --locked chrs

If necessary, add the bin folder to $PATH:

echo 'export PATH="$HOME/.cargo/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc

Home Manager using Nix Flakes​

Edit ~/.config/home-manager/flake.nix

{
  description = "Home Manager configuration example";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    chrs.url = "github:FNNDSC/chrs";  # <-- add this line
  };

  outputs = { nixpkgs, home-manager, ... } @ inputs:
    let
      system = "x86_64-linux";
      pkgs = nixpkgs.legacyPackages.${system};
    in {
      homeConfigurations."chris@computer" = home-manager.lib.homeManagerConfiguration {
        inherit pkgs;
        modules = [
          ./packages.nix  # <-- file where chrs will be specified
        ];
        extraSpecialArgs = { inherit inputs; };  # <-- pass inputs to modules
      };
    };
}

And create the file ~/.config/home-manager/packages.nix with the content:

{ lib, pkgs, inputs, ... }:

{
  home.packages = with pkgs; [
    inputs.chrs.packages.${system}.default
  ];
}

Run

cd ~/.config/home-manager
git add flake.nix packages.nix
nix flake update
git add flake.lock
home-manager switch