Damola's AI Twin

Twin is a full-stack “AI twin” chat app: a Next.js UI talks to a Python API that uses Amazon Bedrock for replies and stores per-session conversation memory (local JSON in dev, S3 when deployed on AWS).

Dev Link - https://d17px7xkl9xub2.cloudfront.net/

Stack

Layer	Tech
Frontend	Next.js 16, React 19, Tailwind 4, TypeScript (frontend/)
Backend	FastAPI, Mangum (Lambda), boto3 Bedrock runtime (backend/)
Cloud	Terraform: Lambda + API Gateway HTTP API, S3 static site + CloudFront, S3 memory bucket, optional custom domain (terraform/)

Flow

• Chat UI sends POST /chat (see frontend/components/twin.tsx), using NEXT_PUBLIC_API_URL or http://localhost:8000 locally.
• API calls Bedrock (BEDROCK_MODEL_ID, default Nova Lite) and loads/saves history by session_id (backend/server.py).
• Deploy: scripts/deploy.sh builds the Lambda zip, then Terraform with S3 remote state and workspaces dev / test / prod. Destroy: scripts/destroy.sh and .github/workflows/.
• Lab notes: docs/week2/.