docs(quick-start): extend by the installer method and make it the pre…

…ferred way of installing

docs/src/quick-start.md

@@ -1,20 +1,35 @@
 # Quick start
 
-Several preparations have to be made in order to bootstrap a working installation:
+## Using the installer
 
-- A working `hardware-configuration.nix` needs to be generated for the current machine to replace mine
+An installer has been created to easy the installation process by bootstrapping a basic flake with personal host and usernames.
+It one can be found on the [ISO builds](https://github.com/dr460nf1r3/dr460nixed/actions/workflows/build_images.yml), so the quickest way to get going is to download the ISO and run `sudo installer`.
+It can also be used on any OS, which has `nix` available. Find more information about how to proceed [here](./installer.md).
+
+## Creating an own configuration including sops-nix
+
+This one is the harder way and mostly suitable for people with a basic understanding of NixOS.
+Several preparations have to be made in order to bootstrap a working installation if not using the [installer](installer.md):
+
+- A working `hardware-configuration.nix` needs to be generated for the current machine to replace mine, this includes having already partitioned disks.
 - The hosts `*.nix` configuration should be adapted to suit the hardware's needs, eg. needed kernel modules or `services.xserver.videoDrivers` should be fitting
 - Since `sops-nix` is used to handle secrets, my files need to be replaced with own ones. Usage instructions can be found [here](https://github.com/Mic92/sops-nix#usage-example), basically one needs to create an age public key from the host's ed21559 SSH private key, which is then added to `.sops.yaml` to allow the host to decrypt secrets while booting up. A fitting age key should also be generated and placed in `~/.config/sops/age/keys.txt` as described in the usage instructions - this allows decrypting the secrets file to edit it. It lives in `secrets/global.yaml` and contains the secrets and can be edited with sops `secrets/global.yaml` (opens a terminal text editor).
 - It might be easier to supply a static password in `users.nix` for bootstrapping, since no login will be possible if the secrets management isn't properly set up yet. I had a few issues with this in the past while setting things up, so I felt giving this advice might help. Usernames are of course also to be changed, as well as SSH public keys.
 
-Then, the bootstrapping process can be started. All you need is `nix`. Run:
+Then, the bootstrapping process can be started. Here, `nix` is also sufficient to set up our our configuration as follows:
+
+```sh
+export NIX_CONFIG="experimental-features = nix-command flakes" # if flakes are disabled
+nixos-install --flake .#hostname
+```
 
-`nix develop` or `nix-shell` to create a shell containing the basic dependencies, then you can proceed by `nixos-rebuild --flake .#hostname` to build system configurations.
+If the operation succeeded, you will be able to boot into your new installation.
 
 How to proceed from here?
 
 - Adapt the configurations like enabled modules and home-manager configs to your needs
 - Set up CI to build your custom system configurations
+- Enable secure boot via Lanzaboote
 - Add your hosts to Tailscale, if you want to be using it. I can warmly recommend it for connecting with any kind of host!
-- Build an ISO to play around with `nix build .#iso` - this has no theming, but has all the important configs for live usb purposes
+- Build an ISO to play around with `nix run .#iso`
 - ... so much more. It never ends ❄️