Hi. I'm John Carmack.
I'm a software engineer focused on production LLM/AI and geospatial/GPU systems. Rust and TypeScript, deck.gl and luma.gl, and the cloud infrastructure that runs them. Lately: primary author of a safety-critical aviation desktop application, lone architect of a real-time analytics platform.
Not the Doom guy. Different guy.
Skills
Languages
RustTypeScriptJavaScriptPython
GPU & geospatial
deck.glWebGLMapLibreD3.js
Frontend & apps
ReactNext.jsViteTailwind CSSNode.jsTauri
Data
PostgreSQLSnowflake
Cloud & DevOps
AWSTerraformKubernetesGitHub Actions
Projects
LLM / AI
promptward
RustTypeScriptReactVite
An LLM gateway that blocks prompt injection and proves the detection rate.
Web
seo-kit
PythonAWSTerraform
Real-data SEO + GEO audits: does Google rank you, do LLMs cite you.
CLI
Geospatial & GPU
Stormdeck
RustTypeScriptReactTailwindVitedeck.glMapLibreWebGLluma.glAWSCDK
Live weather on a deck.gl map, served from the AWS free tier.
Web
deck-wind-layer
TypeScriptdeck.glWebGLluma.glVite
A deck.gl v9 wind-particle layer, advected on the GPU.
Web
glslint
RustTypeScriptdeck.glluma.gl
A GLSL checker for the deck.gl and luma.gl shaders stock tools can't parse.
CLILibrary
geo-desktop-bench
RustTypeScriptdeck.glMapLibreWebGLluma.glTauri
Finding the fastest geospatial desktop stack.
Web
typed-geojson
RustTypeScript
Strongly-typed GeoJSON for Rust.
Library
Apps
Lux
RustAxumTypeScriptReactTailwindTauriTerraform
A DMX lighting controller: multi-fixture engine, sACN streaming, cloud sync.
macOSiOS
vegify.app
RustAxumTypeScriptReactTailwindViteTauri
Micronutrition tracking & recipe sharing for plant-based cooking.
WebiOS
Infrastructure & tooling
Manifest
RustAxumTypeScriptReactTailwindViteAWSCDK
Self-hosted AWS cost & inventory dashboard.
Web
accept-payments
RustAxumStripeTypeScriptReactAWS
A Rust payments & invoicing API on AWS Lambda.
Web
tauri-typed-ipc
RustTauriTypeScriptVite
Type-safe Tauri IPC from a single Rust trait.
Library
Deep Freeze
RustAWSTerraform
Migrate from Dropbox Business to S3 Deep Archive.
CLI
Open source
Merged into other people's codebases. Each title links to the pull requests on GitHub.
Merged work toward 2.0: the OpenAPI paths layer, OAS 3.1 by default, and a bigint remapper the maintainer now uses in his own serde_json tests.
Cargo workspace-dependency support, plus follow-on work on workspace-root version bumps.
Sharpening the useSortedClasses lint rule for Tailwind class order, including how same-utility values sort.
A macOS test-reliability fix and a Claude Code integration guide.