The complete archive of builds. Engineering first, design side quests after.
CSV in, hash-verifiable PDF credentials out
DEVFEST RAIPUR 2025Drag-and-drop template editor and CSV ingestion; concurrent PDF rendering via Node.js worker threads, each credential SHA-256-hashed to power a public verification URL.
Always-on "who said what" listener
Silero VAD cuts live mic audio into utterances, ECAPA voiceprints identify the speaker, and faster-whisper transcribes. Unknown voices are clustered into a speaker directory, and the pipeline is benchmarked on the VoxCeleb1-O verification protocol.
Time-synced Spotify lyrics on a tiny OLED
An ESP32 joins the Spotify playhead with time-stamped lyrics from lrclib, advancing the playhead locally between polls so lines land on the beat. Plus a PC-side streamer that dithers a monitor down to 1-bit frames for the display.
Multilingual AI job-matching platform
RUNNER UP · UTHAAN 2025A two-stage RAG pipeline for cross-language job matching: a hash-map normalizes misspelled Hindi–English terms, then sentence-transformer embeddings with cosine similarity rank matches. Voice search for low-literacy users.
Multi-tenant SaaS, built at HappyChases
Tenant isolation with PostgreSQL Row-Level Security and JWT auth, a 24-client typed @cohortos/modules package, and a Celery + Redis/RabbitMQ backbone for a 5-channel notification system.
Your phone as a pocket sensor lab
A Jetpack Compose app that streams every hardware sensor on the device into live charts, a magnetometer compass, threshold alerts with cooldowns, calibration warnings and CSV data logging.
Uptime watchdog for HappyChases products
Parallel health checks across production sites with email alerts only on state change, so a long outage is one email, not dozens. Crash-safe history on disk and a live status dashboard, shipped as a Docker container.
Landing page for a 10K★ Python library
Overhauled the official landing page of the most-used Python library for the Twitter/X API, migrating from Ruby Jekyll to vanilla JS.