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jann5/README.md

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About

I build projects that sit between software, hardware and real-world use.

  • React and TypeScript frontends
  • Raspberry Pi, ESP32 and Arduino builds
  • UI-heavy apps connected to actual devices
  • experiments that start as hacks and end up as working products

Right now the strongest theme in my work is combining clean UX with physical systems, especially in projects like Spotify Frame and Rocket Graduator.

Featured Work

Spotify Frame

Turned an old Android 4.2.2 photo frame into a dedicated Spotify now-playing display with a Raspberry Pi backend and touch playback controls.

Repo

Rocket Graduator

An in-progress rocket telemetry project focused on modular hardware-software structure, data flow and safe ground-side tooling.

Repo

Taptill

A live TypeScript product build currently in beta.

Repo · Live

Client and Product Work

Public-facing sites and experiments including Drukmajster3D, Engleo and a camera-based web app.

Drukmajster3D · Engleo · Camera Web App

Stack

TypeScript React TSX Java C++ ESP32 Arduino Raspberry Pi Flask Vercel

What I Like Building

  • product-style interfaces that feel finished, not template-made
  • dashboards, tools and web apps with clear UX
  • hardware hacks that give old devices a second life
  • embedded projects where code and electronics actually meet

GitHub Snapshot

GitHub stats Top languages

Current Direction

The work I care most about usually lives somewhere between:

  • polished frontend
  • embedded or Raspberry Pi logic
  • real deployment
  • a physical outcome you can actually touch

If that means turning a forgotten device into a useful product, or building telemetry for a rocket project from scratch, that is usually the kind of work I want to keep doing.

Portfolio

Popular repositories Loading

  1. portfolio-website portfolio-website Public

    TypeScript 1

  2. spotify-frame spotify-frame Public

    Turn an old Android photo frame into a Spotify now-playing display with a Raspberry Pi backend, touch controls, and album art.

    Java 1

  3. desktop-tutorial desktop-tutorial Public

    GitHub Desktop tutorial repository

  4. page-web-project page-web-project Public

    test only

    HTML

  5. studio studio Public

    TypeScript

  6. app app Public

    JavaScript