Getting Started

Mithrandir is an automated Docker-based homelab setup, backup, and restore system for Raspberry Pi OS, Debian and Ubuntu servers. It provides a single CLI to install, configure, and manage a full suite of self-hosted services — from media streaming to home automation to network security.

Tested on

Raspberry Pi 5 with 4 GB RAM running Raspberry Pi OS in headless mode. Other Debian/Ubuntu systems on x86_64 or ARM64 should work but have not been extensively tested yet.

Features

• One-command setup — Interactive wizard installs Docker, configures services, and starts everything with a single mithrandir setup command
• Stack installs — Install predefined app groups in one command (e.g., mithrandir install media-movies-tv for the full movie & TV stack)
• 30+ self-hosted apps — Media servers, download managers, home automation, ad blocking, VPN, password management, and more
• Automatic backups — Daily scheduled backups to local storage and cloud (Google Drive, etc.) via rclone, with configurable retention
• Disaster recovery — Restore your entire homelab on a fresh machine from a remote backup with mithrandir recover
• HTTPS out of the box — Wildcard HTTPS via Caddy reverse proxy with automatic Let's Encrypt certificates using DuckDNS
• Auto-configuration — Optional automatic setup of app integrations (Prowlarr → Sonarr/Radarr, Jellyfin libraries, etc.)
• Health monitoring — Built-in health checks for Docker, disk space, backup freshness, and container status
• Self-updating — Update the CLI and all container images with simple commands

How It Works

Mithrandir manages your homelab through a few key concepts:

App Registry

Every service is defined in a central app registry with its Docker image, ports, volume mounts, environment variables, and dependencies. When you install an app, Mithrandir generates a docker-compose.yml from this definition and starts the container.

Configuration

All settings live in a single .env file at the project root. Core settings like BASE_DIR, timezone, and user IDs apply globally. Per-app secrets (API tokens, passwords) are stored here too and injected into containers at runtime.

Backups

A systemd timer triggers daily backups at 2:00 AM. Each app's configuration and data directories are archived into timestamped tarballs, stored locally, and synced to a cloud remote via rclone. Old backups are pruned automatically based on retention settings.

HTTPS

When enabled, Caddy acts as a wildcard reverse proxy. It obtains Let's Encrypt certificates automatically via DuckDNS DNS-01 challenge. All installed apps get HTTPS endpoints at appname.yourdomain.duckdns.org.

Requirements

• OS: Debian or Ubuntu (including Raspberry Pi OS)
• Architecture: x86_64 or ARM64
• RAM: 2 GB minimum (4 GB+ recommended)
• Storage: Depends on your use case — media libraries need more space
• Network: Internet access for pulling Docker images and (optionally) DuckDNS for HTTPS

Quick Start

# Clone the repository
git clone https://github.com/Joel-Mercier/mithrandir.git
cd homelab

# Install everything (Bun, dependencies, CLI)
sudo bash install.sh

# Run the setup wizard
mithrandir setup

The install script handles everything — installing Bun, building the CLI, and creating the mithrandir command. See the Installation and Setup pages for detailed instructions.

About

This project is developed with the help of LLMs and agentic coding. Although the author is a professional software developer, their primary experience is in web and mobile app development.