Kyle Tse
I've shipped consumer software to millions of people for twenty years. Now I'm building Sylphx, a software company that runs on AI agents.
Sylphx makes one platform for hosting, data, auth and AI; Keel Engine, a Rust engine for games, apps and websites; and the apps and open-source tools that run on them.
Twenty years of consumer software.
The scale each company reached.
Cubeage
2014–- 10M+downloads
MiniMax
2010–2016- 10M+monthly active users
- 30+games
Nakuz
2006- 500K+users
- 3K+online at once
- 100+partners
One platform, one engine.
Everything we ship runs on these two. Both are built mostly in Rust.
Sylphx
sylphx.comOne platform for hosting, databases, auth, AI, workflows and sandboxes: one account, one API key, one SDK and one bill.
Keel Engine
keelengine.devOne Rust engine for games, apps and websites. It renders natively on desktop, web, Android and iOS, and agents drive it from the command line. This site is built with it.
Products on the platform.
Each app has its own name and site. Sylphx builds and publishes them.
- SpironAn always-on AI agent for your life, family, school or work. Give it an objective and it works on its own, asking when a decision is yours.
- KalkasTurns any source into calibrated forecasts, commits each one before the event, and scores it in public.
- PuzzledA daily brain game: word, logic, number and spatial puzzles. One free puzzle every day, no account needed.
Tools anyone can use.
MIT-licensed, local-first, and built for people and AI agents alike.
anymd
Any file to clean Markdown for AI agents: PDF, Office, EPUB, web pages, images and video. A Rust MCP server and CLI that runs on your machine.
repomap
A map of your codebase for AI agents: code graph, search, call paths and change impact, with a graph view.
lockdocs
Library docs at the exact versions in your lockfile. Local, offline, no rate limits.
Firestore ODM
Type-safe Firestore ODM for Flutter and Dart, the maintained successor to cloud_firestore_odm.
Mark
README images from one URL: banners, badges and GitHub stats cards. Free, with no token or sign-up.
Google Photos Delete Tool
Find duplicate photos and bulk-delete safely, with a dry run first. A Chrome extension and userscript.
Where the work happens.
Get in touch.
Building something on Sylphx or Keel, or want to work together? Email is the fastest way to reach me.