nix/README.md

# NixOS Configuration Repository
## NOTE:  These configs expect this repo to be cloned to `/etc/nixos/git/`
* Clone this repo
```
sudo git clone https://git.sysctl.io/albert/nix /etc/nixos/git
sudo chown -R albert:root /etc/nixos/git
# or, with wallpapers
sudo git clone --recursive https://git.sysctl.io/albert/nix /etc/nixos/git
sudo chown -R albert:root /etc/nixos/git
```

* Installation:
```
nixos-install <Hostname> [<Username>]
# or 
./docs/install.sh <Hostname> [<Username>]
```
* Post install (home-manager, GPG keys, SOPS, etc)
```
nix develop -c /etc/nixos/git/docs/setup.sh
```

# Machines 
| Name              | Description                                           | Status   |
| ----------------- | ----------------------------------------------------- | -------- |
| backups-rpi4      | Japan Raspberry Pi 4 for backups from nuc-server      | Done     |
| framework-server  | sysctl.io - main server, framework 13th gen mainboard | Done     |
| nixos-desktop     | My main desktop                                       | Done     |
| nixos-framework   | My AMD Framework 13 laptop                            | Done     |
| osaka-linode-01   | Osaka Linode relay for sysctl.io external connections | Done     |
| milan-linode-01   | Milan Linode DERP relay for Tailscale                 | Done     |
| piaware-rpi4      | FlightAware for Raspberry Pi                          | Done     |
| quitman-rpi4      | Raspberry Pi at my parents house. Headscale Exit Node | On Hold  |
| nuc-server        | Second NUC server at my brothers house                | On Hold  |

# Images
| Name              | Description                                     | Build Commands                                      |
| ----------------- | ----------------------------------------------- | --------------------------------------------------- |
| nixos-iso-console | Console ISO image of this flake for installing  | `nix build .#imageConfigurations.nixos-iso-console` |
| nixos-iso-desktop | Gnome ISO image of this flake for installing    | `nix build .#imageConfigurations.nixos-iso-desktop` |
| nixos-linode-img  | Image of this flake for use on Linode           | `nix build .#imageConfigurations.nixos-linode-img`  |
| nixos-rpi4-img    | Image of this flake for use on Raspberry Pi 4's | `nix build .#imageConfigurations.nixos-rpi4-img`    |

---
# To Do List
## Host Specific
### framework-server
* [ ] Try this https://www.ntop.org/products/traffic-analysis/ntop/
* [ ] Podman mgiration - Potentially use nix-defined containers.

## General
* [ ] Security hardening / scans / etc
* [ ] Where possible, convert cronjobs to systemd services / timers

## Home-Manager
* [ ] Figure out what the home-manager `account` options are for.
* [ ] Find a way to remove all default search engines in Firefox (Google, Amazon, etc)

## Desktop / GUI
* [ ] rofi - rbw integration
* [ ] Set up PyRadio with Nightride.FM

Completed ToDo List [here](./docs/complete.md)

---

# Information
### Home Manager
  * Home Manager Documentation - [Link](https://nix-community.github.io/home-manager/index.html)
  * Home Manager Options Search - [Link](https://mipmip.github.io/home-manager-option-search/)

### NixOS
  * nix.dev - Official Nix Documentation - [Link](https://nix.dev/)
  * NixOS Documentation - Stable - [Link](https://nixos.org/manual/nixos/stable/)
  * NixOS Packages / Options Search - [Link](https://search.nixos.org/)
  * Nix User Repository (NUR) Search - [Link](https://nur.nix-community.org/)
  * ARM NixOS Building - [Link](https://nixos.wiki/wiki/NixOS_on_ARM#NixOS_installation_.26_configuration)
  * NixOS Manual - [Link](https://nixos.org/manual/nix/unstable/introduction)

### Useful Links
  * FlakeHub - [Link](https://flakehub.com)
  * Flakestry.dev - [Link](https://flakestry.dev/)
  * Track a Nixpkgs PR - [Link](https://nixpk.gs/pr-tracker.html)
  * Awesome-Hyprland - [Link](https://github.com/hyprland-community/awesome-hyprland)

### Examples
  * Tons of good examples here - [Link](https://github.com/Mic92/dotfiles/blob/main/nixos/modules/)
  * NixOS Flakes Intro Guide - [Link](https://nixos-and-flakes.thiscute.world/)

### Theming
  * Neofetch Themes - [Link](https://github.com/Chick2D/neofetch-themes/)
  * Stylix - [Link](https://github.com/danth/stylix)
  * Hyprland Inspirations
    * Aylur - [Link](https://github.com/Aylur/dotfiles)
  * Base16 Color Schemes - [Link](https://tinted-theming.github.io/base16-gallery/)

---
# Lanzaboote / SecureBoot
*  Instructions here - [Link](https://git.sysctl.io/Mirrors/lanzaboote/src/branch/master/docs/QUICK_START.md)

## Generic Instructions:
1. Create your keys: `sbctl create-keys`
2.  Verify your machine is ready for SecureBoot:  `sbctl verify` - Everything except `*-bzImage.efi` are signed  
3.  Enter Secureboot Setup mode in your EFI Settings on the motherboard (F10)
    * Security -> SecureBoot -> Set to Enabled and "Reset to Setup Mode" and exit
4.  Enroll the keys:  `sbctl enroll-keys --microsoft` 
    * If you wish, you can select `--tpm-eventlog`, but checksums will change later (ie, at a kernel rebuild)
5.  Reboot and verify you are activated:  `bootctl status`

## Framework Specific:
1.  Change boot import from `boot.nix` to `secureboot.nix` in `./nixos/hosts/<hostname>/default.nix`
4.  Run `rebuild-host` to switch from `boot.nix` to `secureboot.nix`
2.  Reboot into EUFI and set SecureBoot settings to:
    * Enforce Secure Boot - Enabled
    * Erase all Secure Boot Settings - Enabled
    * Restore Secure Boot to Factory Settings - Disabled
3.  Save and reboot
4.  Run `sudo sbctl create-keys`
5.  Run `sudo sbctl enroll-keys`
6.  Reboot and verify with `bootctl status`

# Manual:  GPG Keys
1.  Import the user private key: `gpg --import gpg/users/albert/privkey.asc`
2.  Mark it as trusted:  `gpg --edit-key albert@sysctl.io`, then type `trust`, then `5`
3.  On each new machine, run `sudo nix-shell -p ssh-to-pgp --run "ssh-to-pgp -i /etc/ssh/ssh_host_rsa_key -o /etc/nixos/git/keys/hosts/$(hostname).asc"`
    * This will output the identifier you add to `.sops.yaml`
    * Move `HOSTNAME.asc` to `keys/hosts/` and upload to git and rename accordingly.

# Secrets
1.  Run `nix-develop` in `/etc/nixos/git` to import new keys
2.  To edit a file: `sops secrets/file.yml"`
3.  When you add a new machine, you must update the secrets files encryption. 
    * Ensure `.sops.yaml` has the updated fingerprint and file mappings.
    * Run `sops updatekeys secrets/file.yaml` and commit the change.

# Troubleshooting
1.  To troubleshoot disko issues, this command can come in handy:
```
 nix eval .#nixosConfigurations.`hostname`.config.disko.devices._config
```


# Directory Structure 
```
/etc/nixos/git/
├── docs
├── home-manager
│   ├── common
│   │   ├── desktops
│   │   └── software
│   │       ├── cli
│   │       └── gui
│   ├── hosts
│   └── users
├── keys
│   ├── hosts
│   ├── ssh
│   └── users
├── lib
├── nixos
│   ├── common
│   │   ├── desktops
│   │   ├── modules
│   │   ├── services
│   │   └── software
│   │       ├── cli
│   │       └── gui
│   ├── hosts
│   ├── containers
│   └── users
├── secrets
│   ├── containers
│   └── hosts
├── stylix
│   ├── common
│   └── themes
└── wallpapers
```