# Ultimate Notetaking, Sync & Backup System

A NixOS-based system for managing the three types of data in a computer:

| Tier | Type | Examples | Sync Model |
|------|------|----------|------------|
| **1** | Configuration | flake.nix, dotfiles | Git (public, shareable) |
| **2** | Syncable Data | Notes, documents | Git (nb) + Syncthing |
| **3** | Large Data | Photos, videos, repos | Central backup, on-demand |

## Quick Start

```bash
# One-command setup from any git server
nix run 'git+ssh://git@your-server/you/grapho.git'

# Or clone first, then run
git clone git@your-server:you/grapho.git
cd grapho
nix run .
```

## Full Setup Guide

### First Computer (Initial Setup)

```bash
# 1. Clone the repo
git clone git@your-server:you/grapho.git
cd grapho

# 2. Run setup (one command - includes all dependencies)
nix run .
# Or: nix develop && ./setup

# 3. Choose option [1] "New setup (first device)"
#    This generates an age encryption key - SAVE IT!

# 4. Push config to your git server
cd ~/.config/usync/config
git remote add origin git@your-server:you/grapho-config.git
git push -u origin main
```

### Additional Computers (Joining)

```bash
# One command from your git server
nix run 'git+ssh://git@your-server/you/grapho.git'
# Choose option [2], enter your git URL and age key

# Or non-interactively:
git clone git@your-server:you/grapho.git && cd grapho
nix run . -- <config-git-url> <your-age-key>
```

### Mobile Device (Phone/Tablet)

```bash
# On any computer that's already set up:
nix run . -- mobile

# Or: ./setup mobile
```

This shows a QR code for Syncthing pairing. You can also manually paste device IDs.

### Just Try the Tools (No Setup)

```bash
nix develop
# Provides: nb, syncthing, restic, rclone, age, sops, etc.
```

### Apply as NixOS Module

Add to your flake.nix inputs, then import the module:

```nix
{
  inputs.grapho.url = "git+ssh://git@your-server/you/grapho.git";

  # In your configuration:
  imports = [ inputs.grapho.nixosModules.default ];
}
```

## Philosophy

1. **Config is code**: Your system configuration should be version-controlled and shareable
2. **Notes deserve versioning**: Use git-backed tools (nb) for notes, not just file sync
3. **Sync ≠ Backup**: Syncthing syncs; restic backs up. Use both.
4. **Self-host when practical**: Forgejo, Immich, Jellyfin over proprietary clouds
5. **Open source only**: Every tool in this stack is FOSS

## Architecture

```
┌─────────────────────────────────────────────────────────────┐
│                    YOUR MACHINES                             │
│  ┌─────────┐    ┌─────────┐    ┌─────────┐                  │
│  │ Desktop │    │ Laptop  │    │ Phone   │                  │
│  └────┬────┘    └────┬────┘    └────┬────┘                  │
│       │              │              │                        │
│       └──────────────┼──────────────┘                        │
│                      │                                       │
│              ┌───────▼───────┐                               │
│              │   TIER 2      │                               │
│              │  nb (notes)   │◄── git push/pull             │
│              │  Syncthing    │◄── P2P sync (optional)       │
│              └───────────────┘                               │
└─────────────────────────────────────────────────────────────┘
                       │
                       ▼
┌─────────────────────────────────────────────────────────────┐
│                    YOUR SERVER                               │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐         │
│  │   Forgejo   │  │   Immich    │  │  Jellyfin   │         │
│  │  (git/nb)   │  │  (photos)   │  │  (media)    │         │
│  └──────┬──────┘  └──────┬──────┘  └──────┬──────┘         │
│         └────────────────┼────────────────┘                 │
│                          │                                   │
│                   ┌──────▼──────┐                           │
│                   │   restic    │                           │
│                   │  (backup)   │                           │
│                   └──────┬──────┘                           │
│                          │                                   │
│                   ┌──────▼──────┐                           │
│                   │ B2 / NAS    │                           │
│                   │ (offsite)   │                           │
│                   └─────────────┘                           │
└─────────────────────────────────────────────────────────────┘
```

## What's Included

### NixOS Modules

- `modules/nb.nix` - nb notebook CLI installation and configuration
- `modules/syncthing.nix` - Declarative Syncthing setup
- `modules/neovim.nix` - Neovim with nb integration
- `modules/backup.nix` - restic backup timers
- `modules/server/` - Forgejo, Immich, Jellyfin configurations

### Development Shell

```bash
nix develop
```

Provides: `nb`, `syncthing`, `restic`, `rclone`, `jq`, and helper scripts.

### Helper Scripts

- `usync` - Unified sync command (syncs nb + triggers Syncthing scan)
- `ubackup` - Run restic backup manually
- `ustatus` - Show sync/backup status across all tiers

## Usage

### Tier 1: Configuration

Your system config lives in this repo. Fork it, customize it, push to your own GitHub.

```bash
# Rebuild your system
sudo nixos-rebuild switch --flake .#your-hostname

# Update flake inputs
nix flake update
```

### Tier 2: Notes with nb

```bash
# Create a note
nb add "My note title"

# Edit with neovim
nb edit 1

# Sync to remote
nb sync

# Search notes
nb search "keyword"

# List notebooks
nb notebooks
```

Set up git remote for nb:
```bash
nb remote set git@your-forgejo:you/notes.git
```

### Tier 2: Documents with Syncthing

Documents in `~/Documents/` sync automatically via Syncthing.

```bash
# Check Syncthing status
syncthing cli show system

# Force rescan
syncthing cli scan --folder documents
```

### Tier 3: Large Data

Photos upload to Immich (mobile app or web).
Media is served via Jellyfin.
Manual files can be uploaded with rclone:

```bash
# Upload to your server
rclone copy ~/Videos/project server:archive/videos/

# List remote files
rclone ls server:archive/
```

## Customization

### Adding Your Own Notebooks

Edit `modules/nb.nix`:

```nix
{
  programs.nb = {
    notebooks = {
      personal = {
        remote = "git@forgejo:you/personal-notes.git";
      };
      work = {
        remote = "git@forgejo:you/work-notes.git";
      };
    };
  };
}
```

### Syncthing Folders

Edit `modules/syncthing.nix`:

```nix
{
  services.syncthing.settings.folders = {
    "documents" = {
      path = "~/Documents";
      devices = [ "laptop" "desktop" ];
    };
    "music" = {
      path = "~/Music";
      devices = [ "laptop" "desktop" "server" ];
    };
  };
}
```

### Backup Paths

Edit `modules/backup.nix`:

```nix
{
  services.restic.backups.default = {
    paths = [
      "/home/you/Documents"
      "/home/you/notes"
      "/var/lib/important"
    ];
  };
}
```

## FAQ

### Why nb instead of Obsidian/Notion/etc?

- **Git-native**: Full version history, proper merges
- **Plain text**: Markdown files, no vendor lock-in
- **CLI-first**: Works over SSH, in tmux, everywhere
- **Scriptable**: Integrates with shell workflows
- **Encrypted option**: Built-in GPG encryption

### Why not just Syncthing for everything?

Syncthing is great for binary files but poor for text conflicts. When you edit notes on multiple devices, you want git-style merges, not `.sync-conflict` files scattered everywhere.

### Is Syncthing buggy?

No. See [our research](./docs/research/sync-tools-comparison.md). Common issues are:
- Treating it as a backup (it's not)
- Android battery killing the app (use Syncthing-Fork)
- Expecting cloud-style behavior from P2P sync

### Why self-host?

- **Control**: Your data on your hardware
- **Privacy**: No third-party access
- **Cost**: One-time hardware vs. monthly subscriptions
- **Learning**: Valuable sysadmin experience

But cloud is fine too. This system works with GitHub, Backblaze B2, etc.

## Directory Structure

```
.
├── flake.nix                 # Entry point
├── flake.lock
├── README.md
├── docs/
│   ├── research/
│   │   └── sync-tools-comparison.md
│   ├── ARCHITECTURE.md
│   └── LLM-CONTEXT.md        # For AI assistants
├── modules/
│   ├── nb.nix
│   ├── syncthing.nix
│   ├── neovim.nix
│   ├── backup.nix
│   └── server/
│       ├── forgejo.nix
│       ├── immich.nix
│       └── jellyfin.nix
├── hosts/
│   ├── desktop/
│   │   └── configuration.nix
│   ├── laptop/
│   │   └── configuration.nix
│   └── server/
│       └── configuration.nix
├── home/
│   └── default.nix           # home-manager config
└── scripts/
    ├── usync
    ├── ubackup
    └── ustatus
```

## Contributing

PRs welcome! Please read [ARCHITECTURE.md](./docs/ARCHITECTURE.md) first.

## License

MIT

---

*Built with Nix, because reproducibility matters.*