# Requirements

### To deploy

To deploy a numbus-backup-server, you will need :

* A **live NixOS** bootable USB disk.

You will make the **target** machine **boot** into the NixOS live environment using this **USB stick**. Download the [NixOS iso](https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-installer-x86_64-linux.iso) image.

*On Linux* : Flash it using [Impression (flatpak)](https://flathub.org/en/apps/io.gitlab.adhami3310.Impression) or [BalenaEtcher (AppImage)](https://etcher.balena.io/#download-etcher).

*On MacOS* : Flash it using [BalenaEtcher](https://etcher.balena.io/#download-etcher).

*On Windows* : Flash it using [Rufus](https://rufus.ie/en/#download) or [BalenaEtcher](https://etcher.balena.io/#download-etcher).

* **Source** Machine:

Can be any machine with **Nix installed**, e.g. a **NixOS** machine.

* **Target** Machine:

Can be **any computer** (desktop, SFF, tiny/mini/micro, even a laptop). It could be a dedicated server that you bought or just some computer that you decided to repurpose into a backup server.

* **Network connection** between the source and the target machine.

---

### Next step

[Configuration](./configuration/index.md)