Fusion

A lightweight RSS reader.

Features

• Fast reading workflow: unread tracking, bookmarks, search, and Google Reader-style keyboard shortcuts
• Feed management: RSS/Atom parsing, feed auto-discovery, and group organization
• Fever API compatibility for third-party clients (Reeder, Unread, FeedMe, etc.)
• Responsive web UI with PWA support
• Self-hosting friendly: single binary or Docker deployment
• Built-in i18n: English, Chinese, German, French, Spanish, Russian, Portuguese, Swedish
• No AI features by design: focused, distraction-free RSS reading

Installation

Option 1 (Recommended): Run pre-built binary from Releases

Download the binary for your platform from Releases, then run:

chmod +x fusion
FUSION_PASSWORD="fusion" ./fusion

Windows (PowerShell):

$env:FUSION_PASSWORD="fusion"
.\fusion.exe

Open http://localhost:8080.

Option 2: Run with Docker

latest is the latest release image.

main is the latest development build.

docker run -it -d -p 8080:8080 \
  -v $(pwd)/fusion:/data \
  -e FUSION_PASSWORD="fusion" \
  ghcr.io/0x2e/fusion:latest

Open http://localhost:8080.

Docker Compose example:

version: "3"
services:
  fusion:
    image: ghcr.io/0x2e/fusion:latest
    ports:
      - "127.0.0.1:8080:8080"
    environment:
      - FUSION_PASSWORD=fusion
    restart: unless-stopped
    volumes:
      - ./data:/data

Option 3: Build from source

See Contributing.

Option 4: One-click deployment

• Deploy on Fly.io
• Deploy on Railway (community maintained)

Configuration

Most users only need one setting to get started:

• Set FUSION_PASSWORD.

Then configure based on your goal:

• Run locally or on a home server
• Optional: FUSION_PORT, FUSION_DB_PATH
• Expose Fusion behind a reverse proxy
• Configure: FUSION_CORS_ALLOWED_ORIGINS, FUSION_TRUSTED_PROXIES
• Use mobile/desktop Fever clients (Reeder, Unread, FeedMe)
• Configure: FUSION_FEVER_USERNAME (default: fusion)
• Guide: docs/fever-api.md
• Use SSO instead of password-only login
• Configure: FUSION_OIDC_*
• Set FUSION_OIDC_REDIRECT_URI to https://<host>/api/oidc/callback
• https://<host>/oidc/callback is accepted for compatibility
• Tune feed pull behavior
• Configure: FUSION_PULL_INTERVAL, FUSION_PULL_TIMEOUT, FUSION_PULL_CONCURRENCY, FUSION_PULL_MAX_BACKOFF
• Optional for private networks: FUSION_ALLOW_PRIVATE_FEEDS
• Troubleshoot deployments
• Configure: FUSION_LOG_LEVEL, FUSION_LOG_FORMAT

For the complete variable reference, see .env.example.

Legacy env names (DB, PASSWORD, PORT) are still accepted for backward compatibility.

Documentation

• API contract (OpenAPI): docs/openapi.yaml
• Fever API compatibility: docs/fever-api.md
• Backend design: docs/backend-design.md
• Frontend design: docs/frontend-design.md
• Legacy schema reference (kept for migration work): docs/old-database-schema.md

Development

• Requirements: Go 1.25+, Node.js 24+, pnpm
• Helpful commands are in scripts.sh
• Frontend i18n key check: cd frontend && npm run check:i18n

Example:

./scripts.sh build

Contributing

Contributions are welcome. Please read Contributing Guidelines before opening a PR.

Credits

• Feed parsing powered by gofeed