docs: add more info in main README

README.md

@@ -3,15 +3,102 @@
 ## Ags
 
 You might find it weird that most of my config is written in TypeScript.
-That is because all my desktops run [AGS](https://github.com/Aylur/ags) for UI.
+That's because all my desktops run
-Click on [this](https://git.nelim.org/matt1432/nixos-configs/src/branch/master/modules/ags) to see my configuration.
+[AGS](https://github.com/Aylur/ags)
+for UI. Click on
+[this](https://git.nelim.org/matt1432/nixos-configs/src/branch/master/modules/ags)
+to see my configuration.
 
 ## About
 
-This repo is my complete configuration of machines I own,
+### General
+
+This repo is the complete configuration of machines I own,
 running NixOS or Nix. I tend to mix Home-Manager and NixOS
 a lot to make my custom modules by using my global vars system
-explained [here](https://git.nelim.org/matt1432/nixos-configs/src/branch/master/devices)
+explained
+[here](https://git.nelim.org/matt1432/nixos-configs/src/branch/master/devices)
 
-For QOL, I symlink the configs to my main user's home
+### Flake Location
-directory following the tutorial [here](https://nixos.wiki/wiki/NixOS_configuration_editors)
+
+This git repo will always be located at `/home/${mainUser}/.nix`
+and symlinked to `/etc/nixos` to have everything where NixOS tools
+expect things to be.
+
+ie.
+
+```bash
+sudo rm -r /etc/nixos
+sudo ln -sf /home/matt/.nix /etc/nixos
+```
+
+### Flake Outputs
+
+| Output                             | Description |
+| ---------------------------------- | ----------- |
+| `nixosConfigurations`              | [devices](https://git.nelim.org/matt1432/nixos-configs/src/branch/master/devices)' + ISO's configurations |
+| `nixOnDroidConfigurations.default` | [Nix-On-Droid](https://git.nelim.org/matt1432/nixos-configs/src/branch/master/devices/android)'s configuration |
+| `formatter`                        | I have yet to know if this has any uses but I format with [alejandra](https://github.com/kamadorueda/alejandra) |
+| `devShells.default`                | A dev shell to build an ISO from the live-image nixosConfiguration |
+
+### Flake Inputs
+
+I prefer using a more descriptive format for my inputs like so:
+
+```nix
+nixpkgs = {
+  type = "github";
+  owner = "NixOS";
+  repo = "nixpkgs";
+
+  # Branch name
+  ref = "nixos-unstable";
+
+  # Pin this input to a specific commit
+  rev = "842d9d80cfd4560648c785f8a4e6f3b096790e19";
+};
+```
+
+to make it more clear what is what in the flake URI
+
+I also have a long list of inputs with `flake = false;` because
+it makes it easier to update non-flake custom packages or overlays
+to have the latest git. I make sure to end the names of these inputs
+with `src` to make it clear what they are.
+
+### Secrets
+
+All my secrets are in a private git repo that makes use of
+[sops-nix](https://github.com/Mic92/sops-nix).
+I only use secrets stored in `JSON` and generate `.sops.yaml`
+from `.sops.nix`:
+
+```nix
+let
+  wim = "somekey";
+  oksys = "somekey2";
+in {
+  creation_rules = [
+    {
+      path_regex = "secrets/[^/]+\\.(yaml|json|env|ini)$";
+      key_groups = [
+        {
+          age = [wim oksys];
+        }
+      ];
+    }
+  ];
+}
+```
+
+which is then converted to `.sops.yaml` using
+[remarshal](https://github.com/remarshal-project/remarshal)
+and this shell command:
+
+```bash
+nix eval --json --file ./.sops.nix | remarshal --if json --of yaml > .sops.yaml
+```
+
+TLDR: I
+**[hate](https://ruudvanasseldonk.com/2023/01/11/the-yaml-document-from-hell)**
+YAML