Claude 4 generated Readme, with my edits

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Chris Toph 2025-05-29 16:09:45 -04:00
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# dot.nix
# ❄️ dot.nix
My overly complex dot.files for my Homelab and PCs :D
[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/TophC7/dot.nix)
> **My NixOS & Home Manager Multi User/Host Configuration**
> A modular Nix flake managing multiple systems and users with a focus on reproducibility and ease of maintenance.
---
## 🏗️ Architecture Overview
This repository follows a **layered, modular approach** that separates system-level configurations from user environments, while promoting code reuse across different hosts and users.
```
📁 dot.nix/
├── ❄️ flake.nix # Central entry point & dependency management
├── 🔐 secrets.nix # Encrypted secrets (git-crypt)
├── 🏠 hosts/ # System-level configurations
├── 👤 home/ # User environment configurations
├── 📦 modules/ # Reusable configuration modules
├── 🎨 overlays/ # Package customizations
├── 📋 pkgs/ # Custom package definitions
└── 🛠️ lib/ # Helper functions & utilities
```
---
## 🎯 Core Components
### **Flake Management (`flake.nix`)**
The heart of the configuration, managing:
- **External Dependencies**: `nixpkgs`, `home-manager`, `stylix`, hardware modules
- **System Outputs**: Complete NixOS configurations for each host
- **Custom Packages**: Exposed packages from `pkgs/`
- **Overlays**: Package modifications and additions
### **Secret Management**
- **Encryption**: `git-crypt` secures sensitive data in `secrets.nix`
- **Structure**: Defined by `modules/global/secret-spec.nix`
- **Content**: SSH keys, API tokens, hashed passwords, SMTP credentials
### **Configuration Specifications**
- **`host-spec.nix`**: Defines host attributes (hostname, user, hardware type, desktop environment)
- **`secret-spec.nix`**: Structures for secrets, firewall rules, Docker environments, Users, etc
---
## 🏠 System Architecture (`hosts/`)
### **Global Configurations**
```
hosts/global/
├── core/ # Essential base settings
│ ├── fonts.nix # Font management
│ ├── networking.nix # Network configuration
│ ├── ssh.nix # SSH server setup
│ └── user.nix # User account setup
└── common/ # Optional system features
├── audio.nix # PipeWire audio stack
├── gaming.nix # Steam, GameMode, hardware optimizations
├── gnome.nix # GNOME desktop environment
├── docker.nix # Docker setup
└── libvirt.nix # VM tools and management
```
### **Host-Specific Configurations**
Each system in `hosts/nixos/<hostname>/` contains:
- **`default.nix`**: Main configuration importing globals + host-specific settings
- **`hardware.nix`**: Hardware-specific configuration (bootloader, filesystems, drivers)
- **`config/`**: Service-specific configurations (optional)
#### 🖥️ **Current Hosts**
| Host | Type | Purpose | Hardware | Services |
| ---------- | ------------- | ---------------------- | --------------------------- | --------------------------------- |
| **rune** | Desktop | My workstation | Ryzen 9 7900X3D, RX 9070 XT | Gaming, Development, VMs |
| **gojo** | Desktop | Giovanni's workstation | Ryzen CPU, RX 6950 XT | Gaming, Development |
| **haze** | Desktop | Cesar's workstation | Ryzen 7, RX 6950 XT | Gaming, Development |
| **cloud** | LXC Container | Storage & NFS | 4C/4GB | File storage, NFS server, Backups |
| **komodo** | LXC Container | Docker orchestration | 12C/30GB | Authentik, Komodo, Web services |
| **proxy** | LXC Container | Network proxy | 3C/2GB | Cloudflare tunnels, Caddy |
| **nix** | LXC Container | Development server | 10C/12GB | Remote development, VSCode server |
| **vm** | VM | Testing environment | Variable | System testing |
---
## 👤 User Environment (`home/`)
### **Global Home Configurations**
```
home/global/
├── core/ # Essential user tools
│ ├── fastfetch/ # System info shell prompt with custom scripts
│ ├── fish/ # Shell configuration
│ ├── git.nix # Git setup with signing
│ └── ssh.nix # SSH client configuration
└── common/ # Optional user applications
├── gaming/ # Gaming tools & emulator backups
├── gnome/ # GNOME-specific programs & settings
├── vscode/ # VS Code with patched SSH
└── zen.nix # Zen browser configuration
```
### **User-Specific Configurations**
Each user in `home/users/<username>/` includes:
- **Theme Configuration**: Stylix-based theming with custom color schemes
- **Host Adaptations**: Per-host overrides in `home/hosts/<hostname>/`
#### 👥 **Current Users**
| User | Theme | Primary Host | Desktop Setup |
| --------- | ------------------------ | ------------ | --------------- |
| **toph** | Invincible (blue/yellow) | rune | GNOME + PaperWM |
| **gio** | Gojo (red/white) | gojo | GNOME + PaperWM |
| **cesar** | Soraka (purple/violet) | haze | GNOME + PaperWM |
---
## 🎨 Theming & Customization
### **Stylix Integration**
- **Unified Theming**: Base16 color schemes applied system-wide
- **Custom Schemes**: User-specific YAML color definitions
- **Coverage**: GTK, terminal, VS Code (optional), wallpapers
- **Fonts**: Consistent typography (Lexend, Monocraft, Laila)
### **GNOME Customization**
- **Window Management**: PaperWM for tiling workflow
- **Extensions**: Blur My Shell, Vitals, Pano clipboard, custom keybindings, ...
- **Per-User**: Customized dconf settings for each user's workflow
---
## 🔧 Notable Features
### **🎮 Gaming Infrastructure**
- **Steam Integration**: Proton, GameScope, GameMode optimizations
- **Emulator Backup System**: Automated Borg backups for save files
```nix
# Automatic save backup for Ryujinx with inotify monitoring
borg-wrapper -p "~/.config/Ryujinx/bis/user/save"
-o "/pool/Backups/Switch/RyubingSaves"
-m 30 -- ryujinx
```
- **Hardware Optimization**: AMD GPU settings, VRR support
### **🗄️ Storage & Backup Strategy**
#### **Cloud Host (Storage Server)**
- **MergerFS Pool**: Unified storage across multiple drives
- **NFS Export**: Mounted as `/pool` on other hosts
- **SnapRAID Protection**: Parity-based data protection
- **Borg Backups**: Incremental backups for critical data
#### **Backup Chain**
```mermaid
graph TD
A[SnapRAID Sync] --> B[Borg Docker Storage]
B --> C[Borg Forgejo]
C --> D[Notification]
E[inotify] --> F[Game Save Backups]
F --> G[Borg Game Saves]
```
### **🐳 Container Management**
- **Komodo Integration**: Docker stack management through web UI
- **Service Definitions**: Authentik SSO, Caddy reverse proxy, various applications
- **compose2nix**: Docker Compose files converted to NixOS modules
### **🔐 Security & Access**
- **SSH Key Management**: Automated deployment of public/private keys
- **Cloudflare Integration**: Zero Trust tunnels for external access
- **ACME Certificates**: Automated Let's Encrypt with DNS challenge
---
## 🚀 Usage & Deployment
### **Initial System Installation**
For setting up a new system (in NixOS) with this configuration:
#### **1. Clone Configuration Repository**
```bash
# Get yay.nix temporarily for installation
nix shell github:Tophc7/yay.nix --extra-experimental-features flakes --extra-experimental-features nix-commands --no-write-lock-file
# Clone the configuration repository using yay try
yay try git git-crypt micro
cd ~/Documents/
git clone https://github.com/tophc7/dot.nix
```
#### **2. Unlock Encrypted Secrets**
```bash
cd ~/Documents/dot.nix
git-crypt unlock <<path/to/symmetric.key>> # Or use GPG key
```
#### **3. Configure Hardware Settings**
1. **Compare hardware configurations:**
```bash
micro ~/Documents/dot.nix/hosts/nixos/gojo/hardware.nix
micro /etc/nixos/hardware-configuration.nix
```
2. **Update hardware.nix** with the `fileSystems` and `swapDevices` from the generated `/etc/nixos/hardware-configuration.nix`
#### **4. Install Configuration (TTY)**
1. **Switch to TTY**: `Ctrl+Alt+F2`
2. **Login to TTY**
3. **Rebuild system:**
```bash
nix shell github:Tophc7/yay.nix --extra-experimental-features flakes --extra-experimental-features nix-commands --no-write-lock-file
yay rebuild -H gojo -p ~/Documents/dot.nix -e
sudo reboot -f
```
### **Day-to-Day System Management**
Once installed, use the integrated `yay` tool for all system management:
```bash
# Build and switch system configuration
yay rebuild
# Update flake inputs
yay update
# Clean up system
yay garbage
# Try packages temporarily
yay try fastfetch -- fastfetch
# Create archives
yay tar myfiles/
# Extract archives
yay untar myfiles.tar.zst
```
### **Environment Variables**
- **`FLAKE`**: Set to your flake directory to avoid using `-p` flag repeatedly
```bash
export FLAKE="$HOME/Documents/dot.nix"
yay rebuild # Will automatically use $FLAKE path
```
### **Custom Tools Integration**
- **`yay`**: Primary rebuild and management tool (see [yay.nix](https://github.com/Tophc7/yay.nix))
- **`nh`**: Nix helper for cleaner rebuild output
- **`borgtui`**: Custom TUI for managing Borg repositories
---
## 📚 Development Philosophy
### **Modularity**
- **Separation of Concerns**: System vs. user configurations
- **Reusable Components**: Shared modules across hosts
- **Parameterization**: Host specs drive configuration choices
### **Maintainability**
- **Structured Secrets**: Clearly defined secret specifications
- **Documentation**: Inline comments and clear naming
- **Testing**: VM configurations for safe testing
### **Flexibility**
- **Multiple Users**: Support for different users with different preferences
- **Host Adaptation**: Same user config adapts to different machines
- **Service Composition**: Mix and match services per host needs
---
## 🔗 Key Technologies
| Category | Technologies |
| ------------------ | ------------------------------------- |
| **Core** | NixOS, Home Manager, Nix Flakes |
| **Desktop** | GNOME, PaperWM, Stylix |
| **Virtualization** | libvirt, QEMU, LXC containers |
| **Storage** | MergerFS, SnapRAID, BorgBackup, NFS |
| **Containers** | Docker, Komodo |
| **Security** | git-crypt, ACME, Cloudflare |
| **Monitoring** | Apprise notifications, systemd timers |
---
## 📝 Quick Reference
### **Directory Structure**
- `hosts/nixos/<name>/` - System configurations
- `home/users/<name>/` - User environments
- `home/hosts/<name>/` - Host-specific user overrides
- `modules/global/` - Shared specifications
- `pkgs/` - Custom packages
- `secrets.nix` - Encrypted secrets (git-crypt)
### **Key Files**
- `flake.nix` - Dependency management & outputs
- `shell.nix` - Recovery environment
- `modules/global/host-spec.nix` - Host attribute definitions
- `modules/global/secret-spec.nix` - Secret structure definitions
This configuration emphasizes **reproducibility**, **security**, and **maintainability** while supporting a complex multi-user, multi-host homelab environment. I quite love it, hope it serves as inspo to some of you out there.