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Answers questions by retrieving exact document context via pgvector cosine similarity. I engineered the prompt pipeline to generate structured LLM responses with verifiable, clickable citations.

Chunks PDFs strictly by page boundaries before embedding with OpenAI. I prioritized citation accuracy over cross-page context, ensuring the LLM never hallucinates verifiable sources.

Grants full platform access via auto-provisioned Supabase JWTs on page load. I designed this to eliminate signup friction while gracefully migrating data if users upgrade via OAuth.

Routes AI generation through Gemini with automatic, silent failover to OpenAI GPT. Both APIs natively enforce JSON schema compliance, eliminating application-layer parse failures.

Generates and stores summaries, quizzes, and flashcards in PostgreSQL. I implemented this caching layer to serve repeat requests instantly and drastically reduce API token costs.

Protects expensive LLM endpoints using IP-based token buckets and a database-backed rolling window. This horizontally scalable defense survives container restarts across AWS ECS Fargate instances.

Hooks into native Windows APIs to track active applications at 1Hz without manual input. I implemented a three-stage name normalization pipeline to prevent duplicate logging of identical executables.

Enforces workflow whitelists and blacklists across both desktop and browser. I coordinated Electron overlay windows and MV3 content scripts via a real-time WebSocket bridge to block distractions instantly.

Manages focus sessions using epoch-deadline arithmetic rather than standard intervals. I chose this architecture to prevent data loss across system sleep, screen locks, and manual clock adjustments.

Renders dynamic trends, breakdowns, and heatmaps to visualize time allocation. I utilized React refs and force-update counters to eliminate re-render thrashing on the 1Hz live dashboard.

Drives user consistency through unlockable themes and an XP progression system. All user stats and UI preferences persist locally, ensuring fast load times and offline resilience.

Syncs the desktop app with a custom Chrome Extension. I bypassed ephemeral Service Worker limits by offloading the persistent WebSocket to a Chrome Offscreen Document, ensuring 100% connection reliability.

Processes large batches of user reviews through OpenAI GPT to identify high-priority feature requests. I implemented a server-side request registry to gracefully cancel in-flight API calls, saving token costs on aborted runs.

Highlights high-demand user pain points that competitors currently ignore. I built a 90-day persistent caching layer to serve identical analyses instantly without incurring redundant API charges.

Analyzes category-level trends using geographically distributed entry nodes. I implemented dynamic proxy credential rewriting to successfully scrape accurate, country-specific Play Store rankings.

Processes multiple app scraping requests simultaneously with live UI progress updates. I used optimistic database incrementing to enforce API usage quotas safely without race conditions.

Manages Stripe checkout, refunds, and cancellations with zero manual intervention. I secured all Next.js API endpoints with Zod schema validation and Supabase Row-Level Security.