YDLite
I turned yt-dlp and ffmpeg into a focused Windows app, working through startup speed, dependency checks, format compatibility, playlist control, and visible download progress.
AI Product Engineer
I turn unclear ideas into useful software.
I'm Jon Brown. I build local-first tools, creative products, and AI workflows that remain understandable after the demo ends.
Selected proof
What I have built
openResume
I designed a local-first resume workspace around long-term editing: Markdown and block workflows, real-time A4 preview, AI-assisted import, and PDF, DOCX, and HTML export.
BananaCanvas
I built a multimodal workspace where chat and an infinite canvas share one creative workflow, with server-side authentication, durable asset storage, and clear boundaries around generated content.
Capabilities
Where I do my best work
- 01
Product engineering
Turning an early idea into a usable product: interaction design, frontend and backend implementation, data boundaries, deployment, and the failure paths around the happy path.
- 02
Reliable AI workflows
Designing agent and automation systems with structured inputs, explicit tools, human review, observable failures, and deterministic controls where uncertainty is unacceptable.
- 03
Technical research and explanation
Testing emerging tools against real workflows, identifying the useful operating model underneath the hype, and turning the result into clear technical writing.
Toolkit
Tools I work with
Working principles
- Build for the second visit.
- Keep the product smaller than the problem.
- Put deterministic systems around probabilistic models.
Current focus · July 2026
I am refining local-first product workflows, studying how agent systems fail in practice, and publishing the engineering decisions behind the tools I build.
Core tools: TypeScript, React, Next.js, Tauri, Supabase, PostgreSQL, Docker, Cloudflare, and n8n.
Work with me
I'm open to focused product engineering work, AI workflow consulting, and open-source collaborations with a clear problem and a practical path to shipping.