docs: update install guide

Author: Marc Jakobi

docs/tutorial/02-getting-started.md

@@ -7,8 +7,49 @@ sidebar_label: Getting Started
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 
+## Packages
+
+Lux includes the following packages and libraries:
+
+- `lux-cli`: The main CLI for interacting with projects and installing Lua packages
+  from the command line.
+
+- `lux-lua`: The Lux Lua API, which provides:
+  - `lux.loader` for resolving potentially conflicting dependencies on `require` at runtime.
+  - A work-in-progress API for embedding Lux into Lua applications.
+  We provide builds of `lux-lua` for Lua 5.1, 5.2, 5.3, 5.4 and Luajit.
+
+- `lux-lib`: The Lux library for Rust. A dependency of `lux-cli` and `lux-lua`.
+
+## Installing Lux With a Distribution's Package Manager
+
+### Arch User Repo (Arch Linux)
+
+[![AUR package](https://repology.org/badge/version-for-repo/aur/lux-cli.svg)](https://aur.archlinux.org/packages/lux-cli)
+
+lux-cli [is available in the AUR](https://aur.archlinux.org/packages/lux-cli).
+You can install it with your favourite AUR helper.
+It comes bundled with the `lux-lua` library, which Lux uses to resolve potentially
+conflicting dependencies at runtime.
+
+### Nix and NixOS
+
+[![nixpkgs unstable package](https://repology.org/badge/version-for-repo/nix_unstable/lux-cli.svg)](https://search.nixos.org/packages?channel=unstable&show=lux-cli&from=0&size=50&sort=relevance&type=packages&query=lux-cli)
+
+If you are using [Nix or NixOS](https://nixos.org/),
+you can install [`lux-cli`](https://search.nixos.org/packages?channel=unstable&show=lux-cli&from=0&size=50&sort=relevance&type=packages&query=lux-cli)
+and [`lux-lua` for various Lua versions](https://search.nixos.org/packages?channel=unstable&from=0&size=50&sort=relevance&type=packages&query=lux-lua).
+You may also need to configure [`pkg-config`](https://search.nixos.org/packages?channel=unstable&show=pkg-config&from=0&size=50&sort=relevance&type=packages&query=pkg-config)
+so that it can find `lux-lua` and Lua.
+
+If you would like to use the latest release, our [source repository](https://github.com/nvim-neorocks/lux)
+also provides a Nix flake.
+
+## Installing The Latest Release Using Cargo
+
 Due to the fact that we have no stable release yet, you must install the project
-through `cargo`. We recommend installing through `cargo binstall` for fastest install times:
+through `cargo` if you want the latest release and are not using the Nix flake.
+We recommend installing through `cargo binstall` for fastest install times:
 
 ```sh
 cargo binstall lux-cli --locked