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FELMONON/README.md

Felmon Fekadu

Full-stack product engineer in Calgary, Canada. I ship product systems with TypeScript, Python, React, Node.js, Supabase, Stripe, and Vercel, plus practical AI integrations.

My strongest signal is public proof: shipped products, inspectable repositories, and pull requests reviewed and merged by maintainers at major open-source projects.

Merged into projects you already use

Pull requests reviewed and merged upstream at OpenAI, Astro, Google, comma.ai, and MSW:

Project What I shipped PR
openai/openai-node Realtime sideband call_id connection support #1795
openai/openai-agents-python Isolate merged MCP tool metadata #3114
openai/openai-agents-python Race-safe SQLAlchemySession first writes #2725
openai/openai-agents-python Clarify cancel-after-turn streaming docs #2710
withastro/astro Fix defineLiveCollection loader typing #16018
withastro/astro Descriptive getImage error on astro sync #16017
withastro/astro Fix false-positive a11y content audit #16016
withastro/astro Defer HTML expression completions to TS #15927
withastro/astro Rewrite component auto-import names #15908
mswjs/msw Accept RequestHandler type in setup fns #2676
mswjs/msw Avoid open handles for infinite delays #2669
google/adk-js Native addon agent deps in devtools #219
google/benchmark Document benchmark_min_time CLI forms #2154
commaai/opendbc Cache Hypothesis strategies in car tests #3052

Selected shipped products

  • TypeJung · repo - full-stack Jungian assessment with a 42-question scoring engine, auth, saved results, Stripe checkout, and AI-assisted reports. Validated end to end with a real paid upgrade.
  • msw-inspector · Marketplace - CLI and GitHub Action that finds gaps between MSW handlers and real API usage. Published to npm.
  • NeuroFlow · repo - ADHD-focused planner with AI task breakdown, scheduling flows, and body-doubling support.
  • Collab Editor · repo - real-time collaborative editor with Tiptap, Socket.io sync, autosave, and PostgreSQL persistence.
  • DocAgent Studio - local-first document QA with hybrid retrieval, citation-grounded answers, GraphRAG-style navigation, and offline evaluation.
  • AI Speech Coach - speech coaching app with live video sessions, Tavus integration, and saved feedback workflows.

How I work

  • Full-stack product flows with authentication, payments, persistence, and email lifecycle
  • AI-assisted features that sit inside real user workflows
  • Developer tools, testing infrastructure, and static analysis
  • Real-time collaboration, document retrieval, and local-first AI systems
  • Open-source fixes that survive maintainer review

Core stack

TypeScript, JavaScript, Python, React, Next.js, Node.js, Express, PostgreSQL, Supabase, Stripe, Vercel, REST APIs, WebSockets, Playwright, Vitest, GitHub Actions.

Links

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  1. jungian-typology-assessment jungian-typology-assessment Public

    Full-stack Jungian assessment product with auth, Stripe billing, saved results, private email offers, and AI-assisted reports.

    TypeScript 1

  2. constitutional-playground constitutional-playground Public

    Constitutional AI playground for comparing critique and revision loops in real time.

    TypeScript

  3. neuroflow neuroflow Public

    ADHD-focused planner with task breakdown, scheduling flows, and body-doubling support.

    TypeScript

  4. docagent-studio docagent-studio Public

    Local-first document QA with hybrid retrieval, citation-grounded answers, GraphRAG-style navigation, and offline evaluation.

    Python

  5. collab-editor collab-editor Public

    Real-time collaborative editor with Tiptap, Socket.io sync, autosave, and PostgreSQL persistence.

    TypeScript

  6. msw-inspector msw-inspector Public

    CLI and GitHub Action that finds gaps between MSW handlers and real API usage.

    TypeScript