👋 I build software and give most of it away: games, music apps, AI agent tools, smart-home integrations, Windows utilities, editor and browser extensions, and a few things for island life.
🌐 erwinmayer.com
📋 All projects as text
- Boom Buds ⭐ 3: Bomb-dropping party game for up to 10 players: on one screen, over the local network or online. open in your browser · source
- Pong Wars Reloaded ⭐ 5: Pong Wars, Day vs Night, reloaded with rackets, power-ups, AI opponents, board rotation and custom physics. open in your browser · source
- Escalier Score Keeper: Offline-first score keeper for Oh Hell (Escalier) with shareable game links, in several languages. open in your browser · source
- BoplFix ⭐ 4: Bopl Battle mod: direct P2P connections instead of relays, and keybindings that stick. download · source
- Digital Circus Party App: Self-hosted birthday party app with a 3D AI ringmaster, a cloned voice and iPad push-to-talk. source
- Sonora Live: Remote music lessons in the browser: P2P video, pure instrument audio and two-way MIDI between teacher and student pianos. sonora-live.github.io · source
- Note Master: Learn to read piano notes on treble and bass clefs, with practice scheduled by the FSRS spaced-repetition algorithm. notemaster.erwinmayer.com
- Halloween Soundboard: 260+ spooky sounds with a haunt mode, installable and working offline. open in your browser · source
- MIDI Notes Player: Sequence and play notes across 50+ instruments, right in the browser. open in your browser · source
- Perfect Bluetooth MIDI ⭐ 60: Bridge Bluetooth LE MIDI instruments into Windows MIDI Services, with stable reconnection and low latency. download · source
- Backspace: Set-and-forget encrypted backups to Dropbox, OneDrive, Google Drive, S3 or local disks, with automated restore verification. backspace-backup.github.io · source
- Photobox Book To PDF: Export Photobox photo books to high-resolution PDF. source
- Todoist Export: Back up Todoist tasks, projects and metadata. source
- Trakt.tv Backup ⭐ 3: Back up your Trakt.tv watch history and ratings with one script. source
- Tidesight ⭐ 3: Lightweight web analytics that keeps every raw hit. Full dashboard, session replays and Web Vitals, on low-cost shared hosting. live demo · source
- Cap Côtier Polynésie: Free prep for the Polynesian boat licence: illustrated lessons, 1,000+ practice questions and timed mock exams. cap-cotier-polynesie.github.io · source
- Chained Timers: The interval forge. Sequence timers into named chains for sport, breathwork, cooking and study. Installable web app and native Android. chainedtimers.github.io · source
- WhatsPhone: Open a WhatsApp chat with any phone number without saving it to your contacts first. whatsphone.github.io · source
- Agent Sentinel: Supervisor that resumes Claude Code agents after rate limits and crashes. source
- Teleporter: Move live agent projects between a Windows laptop and an always-on Linux server. source
- Open WebUI Image Models ⭐ 6: Route image-generation models from Open WebUI to llama-swap and ComfyUI. source
- AI Arena History: Daily snapshots and interactive history charts of LLM arena Elo scores across flagship models. open in your browser · source
- HA Merge Sensor History ⭐ 73: Import and merge historical sensor data between entities, safely and idempotently. install with HACS · source
- Real Last Changed / Seen ⭐ 9: Last-changed and last-seen timestamp sensors that survive restarts. install with HACS · source
- FusionSolar Statistics: Huawei FusionSolar statistics card, computed locally with no cloud API. install with HACS · source
- View-Aware Polling ⭐ 4: Poll expensive devices only while their card or dashboard is open. install with HACS · source
- SwitchBot Lock Quick Key: Exposes SwitchBot Lock Ultra Quick Key settings over Bluetooth. install with HACS · source
- Cloudflare Access Recovery ⭐ 8: Brings the HA frontend back when Cloudflare Access cookies expire. source
- Frigate Better Face Recognition ⭐ 4: Local CPU face recognition with InsightFace SCRFD and ArcFace. source
- Frigate Layout Sync: Save and sync camera-group layouts across all your devices. source
- Video Capture Card Viewer: Single-exe, low-latency viewer for USB capture cards in a borderless 1:1 window. download · source
- Extract Audio Tracks ⭐ 3: Pull every language's audio track out of a video file in one go. download · source
- Network Adapters Toggle: A small dark-themed GUI to enable or disable network adapters. download · source
- Singapore REITs Benchmark: S-REIT screener with SGX investor-relations data, gearing, property yields and quality scores. open in your browser · source
- EMD Volatility Forecasting: Paper and test harness on the real limits of Empirical Mode Decomposition for volatility forecasting. source
- Customize VS Window Title ⭐ 122: Put the Git branch, folder path or solution name in Visual Studio's window title. VS Marketplace · source
- Debug Single Thread ⭐ 34: Freeze background threads while stepping, so the debugger stays on the code you are reading. VS Marketplace · source
- Disable No Source Tab ⭐ 12: Stop Visual Studio opening "No Source Available" tabs when stepping into framework code. VS Marketplace · source
- AI Agent Sound Notification ⭐ 7: Plays a sound when Claude Code or another agent is waiting for you. VS Marketplace · source
- Explorer File Filter: A filter button for the VS Code file explorer. VS Marketplace · source
- Bookmark Icon Customizer ⭐ 8: Change the icons of your bookmark bar. Chrome Web Store · source
- Superlevels: Privacy-hardened productivity extension with handy shortcuts. source