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The product studio of Nathan Stewart — Full Stack & AI Engineer

I4C Studio

Explore the Work

Studio floor

Live from GitHub
Now building

Aibou — pet care app, paid-once, household-shared (Android/PWA first)· since Sep 29

  • q-ringv0.18.0· 2 weeks agopushed 2 days ago
    -43% vs prior 4 wks
  • ProtonShiftv1.3.1· 4 days agopushed 4 days ago
  • MineUIv2.11.1· 2 days agopushed 2 days ago
  • Cryov0.4.0· 2 weeks agopushed 3 days ago

Featured Work

Products and experiments currently shipping from the studio.

Live

q-ring

The quantum-inspired keyring for AI-era development.

A secret and credential manager built for developers and AI agents — CLI, MCP integration, tunneling, teleportation, and entanglement. Secure by default, installable via Homebrew.

TypeScriptNode.jsMCPAES-256-GCM
Live

ProtonShift

Linux gaming, decoded.

A desktop app that unifies Steam, Heroic, and Lutris libraries with a visual Gamescope command builder, MangoHud editor, Proton/Wine management, save backups, and a game-fixes database.

PythonPySide6Qt Quick/QMLFlatpak
Live

MineUI

Minecraft server ops, without the terminal.

A Tauri v2 desktop app for running Minecraft servers — a native Rust binary with Simple mode (its own vanilla server, no containers) and Advanced mode driving Podman or Docker.

TypeScriptTauri v2RustNext.js 16
Live

Groundrules

Ground rules for your AI agents.

A visual studio for building the instruction files that drive AI agents — assemble battle-tested blocks into a CLAUDE.md, AGENTS.md, .cursor/rules, or system prompt.

Next.js 16React 19Drizzle ORMNeon

Latest from the Studio

Full changelog
Sep 29

The host stops reading URLs out loud — links now land as cards in the chat in both voice and text mode, and the transcript keeps up with the conversation instead of stalling mid-way.

Sep 28

Five agents, one baseline — I4cTime and the product agents (Q, Proto, Cobble, Frost) gain evaluation criteria, attached tests, and guardrails, and their UI tools now run in the background so a mood or navigation change no longer costs a model round trip.

Sep 28

i4c.studio: a proper Contact page with per-channel blurbs, quick asks that open the host, and product support links; the chat rebuilt on HeroUI Pro with markdown replies and reactions; Docs & guides deep links on the project pages.