Ian Xu

Architect → ex-Google eng → solo

About

Architect-turned-engineer. 2 years at Google (1st place, I18N GenAI Hackathon), now building desktop apps solo and in public. Currently: Cosm — a calmer way to manage windows & workspaces; Mosaic — a GUI for running coding agents.

Links

GitHub

Mosaic

Badges

Bright Idea 💡

Tastemaker

Gone streaking

Gone streaking 5

Maker History

CosmA macOS sidebar that groups apps, tabs and files by task
Jul 2026

🎉

Joined Product HuntApril 20th, 2026

Forums

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2mo ago

Cosm - A macOS sidebar that groups apps, tabs and files by task

cosm is a macOS workspace manager. Put everything a task needs — the apps, browser tabs, and files — into one Space. Switch tasks and the whole context comes with you; everything else tucks out of sight. One thing in focus, the rest quiet. Think of it as the sidebar Arc gave your browser, extended to your whole Mac — apps and files included. Built for people who live in their computer and juggle a dozen things at once. Mac, launching mid-July. Follow to get notified on launch day.