Remote music lessons in the browser: peer-to-peer WebRTC video, pure unprocessed instrument audio, and two-way Web MIDI between teacher and student pianos.
Lightweight, self-hosted web analytics that keeps every raw hit. Complete dashboard, session replays, and Web Vitals running on low-cost shared hosting.
The interval forge: a fast, installable PWA and native Android app that sequences timers into named chains for sport, breathwork, cooking, and study.
Set-and-forget encrypted backup GUI for Windows. Back up to Dropbox, OneDrive, Google Drive, S3, or local storage with automated restore verification.
Free exam preparation platform for the French Polynesian boat permit (Permis Côtier DPAM). Illustrated courses, 1,000+ practice questions, and timed mock exams.
Interactive music theory and piano note learning web app implementing the FSRS spaced repetition algorithm across treble and bass clefs.
Instant WhatsApp chat launcher for any international phone number without saving the contact to your phonebook.
Popular Visual Studio extension to customize IDE window titles with Git branch names, directory paths, and document contexts.
Home Assistant custom integration to import and merge historical sensor data between entities with atomic idempotency.
Bridging Bluetooth LE MIDI instruments directly to Windows MIDI Services with stable reconnection and low latency.
Visual Studio extension to customize window titles with Git branches, folder paths, and solution contexts.
Visual Studio extension freezing background threads during stepping to focus on the active execution path.
Visual Studio extension preventing unwanted "No Source Available" tabs when stepping into framework code.
VS Code extension playing audible notifications when Claude Code or agentic tools require authorization.
Toolbar filter button for the VS Code file explorer.
CLI utility to move active agent projects between a Windows laptop and an always-on Linux server.
Autonomous supervisor, auto-resumption engine, and rate-limit sentinel for Claude Code agents.
Windows utility that prevents optical SPDIF sound receivers from entering standby and dropping audio attack transients.
Custom component to import and merge historical sensor data between entities with atomic idempotency.
Persistent last-changed and last-seen timestamp sensors that survive Home Assistant restarts.
Self-healing authentication proxy recovering the HA web frontend when Cloudflare Access cookies expire.
Integration polling high-overhead devices only while an entity card or dashboard view is actively open.
BLE integration exposing SwitchBot Lock Ultra Quick Key settings.
Lovelace card recreating Huawei FusionSolar statistics locally without cloud APIs.
Bridge Bluetooth LE MIDI instruments directly into Windows MIDI Services for DAWs and Web MIDI.
Multiplayer evolution of Pong Wars: Day vs Night with rackets, power-ups, AI opponents, board rotation, and custom physics.
The 1997 bomb-dropping party classic rebuilt for the browser: up to 10 players on one screen, local network, or online.
Automated daily Elo benchmark tracking and interactive history charts across flagship LLMs.
Single-executable low-latency Windows viewer for USB video capture cards in a borderless 1:1 window.
Interactive web app to sequence and play MIDI note sequences across 50+ instruments.
Singapore REIT screener & benchmark with SGX IR data, gearing views, property yields, and quality scores.
Free Halloween soundboard with 260+ spooky sounds, haunt mode, and offline PWA support.
Offline-first score keeper for Oh Hell card games with shareable game links and multi-language support.
Three.js simulation comparing active pumped cooling vs passive convection cooling.
Standalone Windows utility to extract multi-language audio streams from video files using FFmpeg.
Lightweight dark-themed Windows WPF GUI utility to enable or disable network adapters.
Unofficial Bopl Battle mod restoring direct P2P connections to eliminate relay latency, plus persistent keybindings.
Self-hosted interactive party app featuring a 3D AI ringmaster (Caine) with cloned voice, iPad push-to-talk, and run-of-day orchestration.
Headless high-resolution PDF exporter for Photobox online photo books.
1-D hydraulic network solver and Three.js real-time fluid visualizer.
Empirical evaluation harness and research paper investigating the predictive limits of Hilbert-Huang Transform (HHT) and Empirical Mode Decomposition (EMD) for financial volatility forecasting under causal, surrogate-controlled conditions.
Chrome extension to customize bookmark bar favicons and icons.
Add-on hiding duplicate search results from Gmail 'All Mail' folders in Thunderbird.
Improved backup and export utility for Todoist tasks, projects, and metadata.
Image-generation model router connecting Open WebUI to llama-swap and ComfyUI.
InsightFace SCRFD + ArcFace local CPU face recognition companion for Frigate NVR.
Save, sync, and responsively restore Frigate camera-group dashboard layouts across devices.
Standalone PowerShell script to back up your entire Trakt.tv watch history and ratings via OAuth.
Enhanced, privacy-hardened Chrome extension providing productivity shortcuts and custom level tools.
- Website: www.erwinmayer.com
- GitHub: @mayerwin