What is Horizon?
Horizon is an open-source news briefing tool published under the MIT license. Its README explains the problem it targets: good reads are scattered across feeds, forums and timelines, and attention is limited. Horizon collects, filters and deduplicates them, then brings the worthwhile ones to you with context and community discussion.
Sources can include RSS, Hacker News, Reddit, Telegram, X, GitHub and financial news. The central concept is a profile, a reusable set of editorial rules that defines what belongs, what is worth keeping and what to write. Profiles carry scoring rubrics and individual thresholds, and repeated stories are merged within each profile. Output treatments include summaries, context, solutions or takeaways, defined with Markdown prompts and JSON block definitions.
Horizon can add web-researched background and community discussion where they help explain a story. Briefing length and each category's share can be capped so one busy topic does not crowd out the rest. Briefings are generated in English and Chinese as Markdown, published to GitHub Pages, or delivered by email and webhook.
Key capabilities
- Source collection RSS, Hacker News, Reddit, Telegram, X, GitHub and more.
- Editorial profiles Scoring rubrics, thresholds and per-profile output rules.
- Deduplication Repeated stories are merged within each profile.
- Context Web-researched background and community discussion.
- Delivery Markdown briefings in English and Chinese, Pages publishing, email and webhook.
Where Horizon fits
- Daily technology and engineering news digests
- Monitoring GitHub and community discussion in one briefing
- Giving each content type its own scoring and output rules
- Publishing a briefing site or sending it by email
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