Prateek Singh

Built ArrowMetal — listed on Apache Arrow's official Powered By page, the first Apache Arrow project to run compute on the Apple silicon GPU. An Arrow buffer in Metal shared memory is already a GPU buffer, so ArrowMetal runs 307 of Arrow's 307 compute functions there, from seven languages: take at 24.2× pyarrow on 25M indices and sort 4.1× Polars on 50M rows, on an M4 Max, with all 339 measured rows published.

Built adbcBridge — an Apache Arrow ADBC driver for any ODBC data source, listed on Apache Arrow ADBC's official Tools & Integrations page: one plain-C11 library that turns every ODBC driver on your machine into an Arrow-native one, from Python, Rust, Go, Java and C#. 46 databases verified on Linux, 41 on macOS, 45 on Windows — every number measured on an ordinary laptop and named with its load.

Built gpudb — the first GPU SQL engine for Apple Silicon, now an official DuckDB Community Extension: one line installs Metal kernels into any DuckDB ≥ 1.5.5, with native-parity TPC-H end-to-end and 3–25× operator wins on an M4 Max.

Wrote The First Mind — a 20-chapter illustrated novel that tries to make learning what an LLM actually is genuinely fun. Five friends, one weekend hackathon, a year of late nights. Comic panels for every scene, audio narration in English and Hindi.

Launched Skill the Gap — free, browser-based and mobile-friendly AI courses for everyone, in English & Hindi. Seventeen courses from the basics to advanced, about ten minutes a day, free forever — no app, no fee, made for whoever you are.

Also four small native Rust tools — Notepatra (a code editor for the AI era), KAShot (a cross-platform screenshot tool), Diskhoji (a disk-space analyzer with a mini-game to play while it scans), and Kevat (a resumable file copier that survives unplugs and picks up from the last proven checkpoint). All four tiny native binaries — no Electron, no telemetry — all on the Projects page.

Published crimson-crab — a production-grade Rust SDK for Anthropic’s Claude API: streaming, tool use, extended thinking, prompt caching, and batches. 191 tests, a panic-free library enforced at compile time, a tokio-free public API, and a clean wasm32 type-check. v0.1.0, MSRV 1.75, dual MIT OR Apache-2.0. An independent project, not affiliated with Anthropic.

Published ferrovec — a tiny, dependency-light HNSW vector index built to compile to WebAssembly. serde & postcard are its only Rust dependencies, the wasm build is reported at ~33 KB gzipped, and a deterministic PRNG keeps getrandom out of the tree so it lands on wasm32 with no shims. The npm package adds transformers.js auto-embedding on a Web Worker, OPFS persistence, and cross-tab leader election — semantic search that runs entirely in the browser, no server. v0.3.1 on crates.io & npm.

The throughline behind the teaching: make AI genuinely accessible to everyone, for free, in their own language — a free course in English & Hindi, and a story that teaches what an LLM actually is.