{Joel Horowitz}

Case studies

Curated Work

Selected builds and experiments — each with stack notes, links, and context.

AI Platform

Storymaker

2026

An agentic AI platform that turns a story concept into illustrated, print-ready books — scene authoring, illustration, multi-model grading, PDF assembly, and promo pages, orchestrated end to end.

Storymaker preview
PythonFastAPIPostgreSQLOpenRouterGeminiLLM-as-judgeMulti-agentPyMuPDFasyncioS3
Developer Tool

Debugger

2026

An AI-assisted debugger that understands your stack, locals, and source context — built for research-heavy workflows across domains (e.g. finance and healthcare-style pipelines).

PythonLLMAgentsIDEFull-stack
Publishing

Samoa Headline

In development

Publishing site for The Parts Series — standalone picture books where a child meets a personified inner part (worry, anger, a too-bright smile, the urge to plan everything) on a gentle path toward curiosity, belonging, and self-leadership, rooted in Internal Family Systems ideas.

Samoa Headline preview
PublishingWebChildren's booksIFSDesign
Web App

Portfolio Site

Q1 2025

This very site — a hobby playground for trying ideas in TanStack Start. It mixes project demos, notes, and UI experiments in one place.

Portfolio Site preview
TanStack StartReactTypeScriptTailwind CSSNetlify
Web App

CollabTask

Q2 2025

A real-time collaborative task manager experiment with drag-and-drop boards, WebSocket sync, and shared presence.

CollabTask preview
ReactNode.jsWebSocketsPostgreSQLRadix UI