Thrift Plug.

To build a seamless and high-performing experience, I designed a multi-layered technical architecture: 1. Atomic Lock Strategy: I implemented a custom Next.js Server Action that directly communicates with raw MongoDB collections. Using the atomic findOneAndUpdate operation, items are marked as 'locked' for 10 minutes at the exact microsecond checkout is initiated. Any concurrent checkout attempt is automatically blocked and rolled back. An n8n-triggered cron worker hits a secure API route periodically to sweep and release expired locks. 2. AI-Assisted Cataloging Pipeline: I wrote a Payload CMS beforeChange hook that intercepts newly uploaded garment images and sends them to the multimodal Google Gemini Flash API. The model analyzes the photo and automatically generates the product name, brand, color, category, and an engaging sales description in French. A secondary hook automatically registers new categories into the global settings, removing manual database entries. 3. CDN-Backed Media Storage: Integrated Cloudflare R2 object storage using an S3 adapter and routed all assets through a high-speed custom CDN domain to ensure lightning-fast image loading and zero database load. 4. Enterprise CI/CD & Testing: Engineered a production-grade GitHub Actions pipeline. On every commit to production, the runner initiates a Docker container environment, spins up an isolated MongoDB database service, executes automated Vitest integration tests, compiles the Next.js production build, and pushes a lightweight Docker image to the GitHub Container Registry (GHCR) for immediate Kubernetes/VPS deployment.