Observed Signal · Jun 20, 2026 · Technical Release · Source: DEV Community · Impact: 1/5 · Sentiment: Neutral
Developer Builds ZenPlan: Serverless AI Habit Tracker
A developer built ZenPlan, a premium AI-powered habit tracker and routine planner during the Hack the Zero Stack with Vercel v0 and AWS Databases Hackathon. The app uses Next.js 16 (App Router), Tailwind CSS and Framer Motion on the frontend, is deployed serverless on Vercel, and stores data in Amazon DynamoDB using a single-table design. The project integrates an AI Coach conversational interface that can write suggested habits directly to the dashboard, and uses Vercel OIDC + AWS IAM for authentication. The author documents engineering challenges and solutions for edge caching and state persistence (forcing dynamic routes, explicit Cache-Control headers, and client cache-busting), and links to a live demo and GitHub repo.
Technical walkthrough of a single developer's hackathon project; contains practical engineering tips (edge cache busting, single-table DynamoDB) useful to web developers but not industry‑shifting for AdTech/MarTech.
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Key Takeaways & Evidence Grounding
- ZenPlan is a habit tracker deployed serverless on Vercel and built during a Vercel + AWS hackathon.
- Frontend stack: Next.js 16 (App Router), Tailwind CSS, Framer Motion; backend storage: Amazon DynamoDB (single-table mode).
- Authentication/security: Vercel OIDC integrated with AWS IAM.
- Edge caching/state issue resolved by forcing dynamic API routes (dynamic = 'force-dynamic'), returning Cache-Control: no-store, and adding client-side cache-busting query parameters.
- Project includes an AI Coach conversational UI that can add suggestions to the dashboard; live demo and GitHub repository are published.
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