Developer Builds AI-Powered Slack Bot to Deliver Daily Sustainability News Digests

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A volunteer on the communications team at GreenHomeNYC, a New York-based sustainability nonprofit, built a Slack bot to revive the organization's underused news-sharing channel. The bot automatically fetches the latest sustainability articles via the GNews API, uses Google's Gemini AI to generate concise summaries, and posts a daily digest to a Slack channel through an incoming webhook. The project was built in a single overnight session starting Sunday at 6 PM EDT, with the final submission made just before a 3 AM deadline. It is built with TypeScript and Node.js, and uses GitHub Actions to run on a scheduled cron job. The developer submitted the project under the Best Use of Google AI category as part of DEV Community's Weekend Generosity Challenge.

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