About I4C Studio
A one-person product studio for developer tools, AI-native products and Linux apps, built and shipped in public.
The studio
I4C Studio is a one-person product studio. It makes developer tools like q-ring and Groundrules, AI-native products with voice and agent interfaces, free browser tools like Tanko, Koyomi and Kataribe that never upload your files, and Linux gaming and desktop apps like ProtonShift, MineUI and Cryo.
Everything ships in public, in small and frequent releases: open repos, changelogs, a Now page and short videos. The workflow is AI-native by design - Claude Code, custom MCP servers and voice agents like I4cTime, the host of this site, are part of how the products get built, not only what they are.
Nathan Stewart runs the studio. He designs, builds, ships and supports every product himself, so a bug report, a feature request or an email reaches the person who wrote the code.
The founder
Full stack and AI engineer with 17+ years in IT, from mainframe operations to production AI features.
Nathan's profile and resumeHow the studio works
Ship real products, not demos: native apps, CLIs and sites people use every day, released early and improved often.
Every release teaches something. Issues, Discord threads and real usage decide what ships next.
Open source by default, free tools stay free, and the work is documented in public through videos, changelogs and write-ups.