GoNZB

GoNZB is a modular Usenet application written in Go.

It can run as:

• a downloader
• an aggregator for external and local sources
• a Usenet/NZB indexer
• an all-in-one server with API and web UI

The project is intentionally built as a modular monolith. Downloader, aggregator, and indexer live in one process, but they keep clear ownership boundaries so each module can be enabled independently.

What It Does

Downloader

The downloader module handles:

• manual NZB enqueue
• release-based enqueue from search results
• NNTP download execution
• extraction and post-processing
• queue, history, files, and event APIs
• SAB-compatible downloader behavior

Aggregator

The aggregator module handles:

• searching external Newznab sources
• searching the local indexer as a source when enabled
• serving Newznab-compatible search and get behavior
• caching NZB payloads
• native aggregated release search

The aggregator does not require PostgreSQL unless you explicitly use the local usenet indexer as one of its sources.

Usenet/NZB Indexer

The usenet indexer module handles:

• scraping article headers from NNTP providers
• assembling binaries and forming releases
• inspection and enrichment passes
• PostgreSQL-backed release catalog APIs
• feeding the aggregator when the local indexer source is enabled

API And Web UI

The API module exposes native APIs, compatibility routes, health/readiness probes, and admin/runtime settings endpoints.
The web UI sits on top of those APIs and provides first-run setup, operations, and admin tooling.

Common Deployment Shapes

GoNZB is designed to support these combinations:

1. downloader-only
2. aggregator-only
3. usenet-indexer-only
4. all-in-one

Do not assume one module requires the others.

How The Modules Work Together

• The aggregator can search external indexers, the local blob cache, and the local usenet indexer.
• The downloader can enqueue NZBs directly or queue releases discovered through the aggregator or local indexer.
• The local usenet indexer can act as a catalog source for the aggregator without collapsing module boundaries.

Storage

GoNZB uses different storage backends depending on which modules are enabled:

• SQLite for downloader metadata, auth, runtime settings, and optional aggregator cache/search persistence
• filesystem blob storage for cached NZB payloads
• PostgreSQL for the usenet indexer catalog and indexing pipeline

Configuration Model

config.yaml is now intentionally minimal.

Bootstrap config covers:

• port and HTTP/bootstrap behavior
• hard module enablement flags
• logging
• storage bootstrap paths
• API key and CORS

Operational settings are managed at runtime and stored in SQLite:

• NNTP servers and credentials
• downloader paths and options
• aggregator sources
• indexer newsgroups, stages, schedules, and enrichment settings
• maintenance and retention settings

Start from the example:

cp config.yaml.example config.yaml

Then launch GoNZB and complete setup in the UI:

• create the initial admin user at /setup
• configure enabled modules in /admin/settings

Quick Start

Run The Server

make build
./bin/gonzb serve

If /config/config.yaml exists, GoNZB will use it automatically in container-style environments. Otherwise pass the path explicitly:

./bin/gonzb --config /config/config.yaml serve

Manual NZB Download

./bin/gonzb --file my_file.nzb

Docker

docker build \
  --build-arg VERSION=$(git describe --tags --always) \
  --build-arg BUILD_TIME=$(date -u +'%Y-%m-%dT%H:%M:%SZ') \
  -t gonzb:latest .

docker run -d \
  --name gonzb \
  -p 8080:8080 \
  -v $(pwd)/config:/config \
  -v $(pwd)/downloads:/downloads \
  -v $(pwd)/store:/store \
  gonzb:latest serve

API Surfaces

Native

• downloader routes under /api/v1/queue and /api/v1/events/queue
• aggregator release search under /api/v1/releases/search
• indexer catalog and operations under /api/v1/indexer/*
• admin settings and control-plane routes under /api/v1/admin/*
• auth routes under /api/v1/auth/*

Compatibility

• /api?mode=... for SAB-compatible downloader behavior
• /api/sab?mode=... for explicit SAB-compatible downloader behavior
• /api?t=... for Newznab-compatible aggregator behavior
• /nzb/:id for direct NZB fetch/download

Probes

• /healthz
• /readyz

Docs

• Docs Index
• Architecture
• Indexer Wiki