Download the release archive and extract it into your installation. The src/addons/MC/NewsAggregator/ directory should sit alongside the other add-ons.
Navigate to AdminCP > Add-ons and click Install next to [MC] News Aggregator.
Two cron entries are activated automatically: Fetch feeds (runs on its configured cadence to pull new items from active sources) and Prune news items (enforces the retention policies).
Visit AdminCP > [MC] News Aggregator > Sources. Add at least one feed URL. See sources.
Visit AdminCP > Setup > Options > [MC] News Aggregator. Set the retention windows, fetch concurrency and timeout, and the duplicate-detection threshold to suit your traffic. See options overview.
Optionally configure the global news ticker under the Ticker section of the options. See ticker and widget.
Navigate to AdminCP > Groups & permissions > Permissions and grant View news feed to the groups that should see the public page and ticker.
Confirm the add-on is Active at AdminCP > Add-ons.
After the Fetch feeds cron runs once (or trigger it manually under AdminCP > Tools > Cron entries), visit /news/. Recent items from your active sources should be listed.
Confirm both cron entries are listed at AdminCP > Tools > Cron entries with [MC] News Aggregator in the title.