Replit & NixOS cheat sheet

commands.sh

# NixOS is a Linux distribution built on top of the Nix package manager, known for its declarative and reproducible approach to system configuration.
# read more: https://nixos.org/

# Replit uses NixOS under the hood in order with Nix which is a tool for managing packages and system configurations.
#https://docs.replit.com/programming-ide/nix-on-replit

# Update nix packages
nix-channel --update

# list all nix channels
cd ~/.nix-defexpr/channels
for channel in nixpkgs-*
do echo ${channel#*-}
done
# current channels: https://channels.nix.gsc.io/

# you can add packages at `replit.nix`, here we add node-18
```replit.nix
{ pkgs }: {
    deps = [
        pkgs.nodejs-18_x
        pkgs.sudo
        pkgs.unixtools.netstat
        pkgs.deno
    ];
    env = {
      NIXPKGS_ALLOW_INSECURE="1";
    };
}
```
# P.S: Here we've added `NIXPKGS_ALLOW_INSECURE` to the Nix environnement variables.

# You can find more packages at: https://search.nixos.org/packages

# Replit also has its own package manager `upm` which a Universal Package Manager for Python, Node, Ruby and more...
```bash
$ upm --help
Usage:
  upm [command]

Available Commands:
  which-language   Query language autodetection
  list-languages   List supported languages
  search           Search for packages online
  info             Show package information from online registry
  add              Add packages to the specfile
  remove           Remove packages from the specfile
  lock             Generate the lockfile from the specfile
  install          Install packages from the lockfile
  list             List packages from the specfile (or lockfile)
  guess            Guess what packages are needed by your project
  show-specfile    Print the filename of the specfile
  show-lockfile    Print the filename of the lockfile
  show-package-dir Print the directory where packages are installed
  help             Help about any command
 ```
# find out more at: https://github.com/replit/upm