Tyler Teuber

Pistomp Pedalboard

Embedded Real-Time Audio

A live multi-effect guitar pedalboard in C++17 for the pi-Stomp hardware (Raspberry Pi 5), built for worship-service use. One binary drives the whole instrument: 30+ JUCE-based effects plus a Neural Amp Modeler running in real time, an on-device LVGL screen UI, and a phone-friendly Svelte web control surface kept in sync over Server-Sent Events. The audio thread never takes a lock — chain edits publish through an epoch-based RCU scheme so effects can be added and reordered mid-performance without a click, verified by sanitizer-swept stress tests in CI. The whole app also runs as a macOS desktop simulator, so it can be developed without touching the Pi.

C++JUCESvelteLVGLEmbedded

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Pistomp HAL

C++ Library + Hardware Drivers

A JUCE-free C++17 hardware abstraction layer for the pi-Stomp guitar-pedal platform, extracted from the Pistomp Pedalboard project and consumed by it as a tagged CMake dependency. It packages rotary encoders, footswitches, NeoPixel LEDs, an ILI9341/LVGL display, and a realtime ALSA duplex audio loop behind clean headers — the board object owns the shared SPI mutex and vends fully-wired controls, so a consumer can never forget the lock and corrupt the bus. The same headers are backed by a macOS simulator (LVGL in an SDL2 window, CoreAudio, keyboard controls), so an entire pedal app can run with no Pi attached.

C++ALSALVGLCMakeEmbedded

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Gesture Synth

Audio DSP + Creative UI

A Juno-inspired polyphonic synthesizer plugin built from scratch in modern C++20 with JUCE — hand-written DSP including a PolyBLEP anti-aliased oscillator, state-variable filter, and a 16-line feedback-delay-network reverb. Its gesture-based modulation system lets you drag a source onto any knob to route it, with live connector lines visualizing the whole modulation graph. Real-time-safe by construction: lock-free UI-to-audio messaging and no allocations on the audio thread. Ships as AU, VST3, AUv3, CLAP, and Standalone with CI builds.

C++JUCEDSPAudioUI Design

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Retro Arcade SFX Gen

Browser-Based Synth + Built for Students

A browser-based 8-bit sound effects generator inspired by classic arcade machines. A dual-oscillator synth engine with AD envelopes and a vibrato LFO produces the pitch sweeps and gritty impacts that define the genre; presets and a randomizer get you close fast, then offline rendering exports the patch as a 16-bit PCM WAV. Built for my students whose Pygame and Scratch games kept ending up silent.

ReactTypeScriptTone.jsWeb AudioTailwind

Live Demo See Code

Personal Lesson Agent

Agentic AI Engineering

An AI-powered desktop learning platform that turns a short interview into a complete personalized course — lessons, multi-file coding exercises, and quizzes — with a context-aware AI tutor beside every module. Built on a custom multi-agent framework with a bounded tool-use loop and a four-level hierarchical context system, so every agent knows exactly who it is teaching. React 19, strict TypeScript, and Electron with a sandboxed IPC bridge, tested with Vitest and MSW.

TypeScriptReactElectronAI AgentsTailwind

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SelfControl for Android

OS-Level Enforcement

An Android self-control app that blocks apps and websites using Device Owner APIs — the same device-management layer as enterprise MDM software — so restrictions cannot be bypassed by simply uninstalling the app. Supports scheduled blocks (including overnight windows), commitment locks that can tighten but never loosen, and website rules pushed directly into Chrome via managed configurations. Built with Jetpack Compose, Room, Hilt, and WorkManager, with CI on GitHub Actions.

KotlinJetpack ComposeAndroidRoomHilt

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HyprBlocker

Multi-Component System

A tamper-resistant website and app blocker for Linux/Hyprland: a Python daemon running as a systemd service with a FastAPI control API, a desktop GUI, a system tray app, and a browser extension enforcing blocks in Firefox and Chrome. A watchdog restarts the daemon if it is killed, NTP time verification defeats clock tampering, and lock mode makes configuration read-only during focus periods. Demonstrates systems thinking — from low-level scripting to polished interfaces.

PythonFastAPIJavaScriptLinuxBrowser Extension

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Sermon Slides Generator

Built for My Church

A macOS desktop app that turns a list of Bible references into presentation-ready PDF slides in seconds — replacing a weekly manual copy-paste job at my church. It fetches each passage from BibleGateway, cleans the text, splits long passages across slides at sentence boundaries, and renders polished slides with custom typography and a QR-coded title slide before assembling the final PDF. Packaged as a standalone .app with PyInstaller, with a pytest suite and a headless CLI.

PythonPyWebViewPillowWeb Scraping

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This Portfolio

You're Looking at It

This site — designed and built from scratch with Astro, Svelte 5, and Sass. Static-first with islands of interactivity (like the project filter above), scroll-driven reveal animations, and a fully responsive layout. No UI frameworks, no templates.

AstroSvelteSass

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Projects

Pistomp Pedalboard

Pistomp HAL

Gesture Synth

Retro Arcade SFX Gen

Personal Lesson Agent

SelfControl for Android

HyprBlocker

Sermon Slides Generator

This Portfolio

Experience

Teacher / Assistant Manager

Web Developer Intern

Data Engineering Intern

Skills

Languages

Frontend

Backend

Audio & Native

Tools & AI

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