Active Mirrors for Official CAP Feeds
A field note on the Alert Hub RSS reflector: an independently hosted mirror intended to keep official CAP alerts reachable when national network rules impede access across borders.
Project journal
All posts
Technical notes, experiments and implementation reports, newest first.
A Human-Readable View of Alert Hub Monthly Reports
The finalised Alert Hub monthly report can now be read and explored in the CAP Aggregator, with Markdown and JSON downloads for reuse outside the application.
Keeping CAP Alerts Readable as Browsers Retire Native XSLT
A field note on two ways to preserve human-readable Common Alerting Protocol documents after Chromium removes native XSLT: HTTP content negotiation and an experimental script-loaded XSLT processor.
Tightening the CAP Profile for Flood Hub Guidance
A follow-up note on aligning generated Flood Hub guidance CAP with a narrower authority-facing profile: clearer sender identity, authority audience text, fewer optional elements, and a two-hour freshness window.
Telegram Targets for CAP Alerts in multi-channel-relay
A field note on adding Telegram as a downstream target for relayed CAP messages, with context-owned target configuration and delivery receipts visible in the operator view.
multi-channel-relay for CAP Alert Fan-Out
A technical note for organisations that need to receive Common Alerting Protocol alerts and relay them safely to internal systems, public feeds, and operational partners.
Measuring Controlled Vocabulary Term Salience
A new vocabulary salience model records archive-wide evidence for controlled terms, so vocabulary discussions can be grounded in observed CAP alert usage.
Making Background Automation Observable
A missing auto-loaded source exposed a useful operational gap: background register sync needed a durable audit trail, consistent instance identity, and an admin view.
Turning Flood Guidance Into CAP
A field note on an experiment that polls Google Flood Hub flash-flood guidance, reconciles warning changes, and can publish generated CAP alerts through multi-channel-relay.
Andorra Adds a CAP Feed
News from Eliot: the Filtered Alert Hub sources file now includes Andorra's operating MeteoAlarm CAP feed, with alert content available in Catalan, Spanish, French, and English.
Reporting, Legacy Cleanup, and SNS Push Ingest
A note on monthly reporting, legacy compatibility observation, and a default-off SNS push ingest path through the canonical alert pipeline.
Controlled Vocabularies for CAP
A technical note on controlled-vocabulary work for CAP emergency alerting: versioned OET exports, SKOS RDF/XML, archive keyword analysis, and reusable embedding metadata.
Context S3 connections can be copied safely
A note on copying context-owned S3 storage connections without exposing credentials in the browser, plus a quieter card-based editing workflow.
ah-cap-commons moves to Jackson 3 and JDK 25
A compatibility note on moving the shared CAP XML model to Jackson 3 and JDK 25 while preserving the existing model shape.