Projects

Outvo

outvo.app →

An AI speaking-practice app I built for language learners who understand more than they can say. It offers realtime voice conversations with an opinionated AI partner that responds to meaning rather than correcting grammar.

I built the Next.js/TypeScript frontend and Go backend, with PostgreSQL/Supabase for data and authentication, Redis, and Polar for subscription billing.

• Realtime audio streamed directly between the browser and Gemini Live, using short-lived tokens issued by the Go API.
• Personalized conversations with memory across sessions, post-session reviews and progress tracking.
• Backend usage metering and retry-safe background analysis, deployed on Hetzner with Coolify and monitored through OpenTelemetry and SigNoz.

Checksite

checksite.app →

A website-monitoring SaaS I independently built and launched. It tracks selected page content and uses AI to summarize relevant changes.

I owned the product from idea through production: the SvelteKit/TypeScript frontend, Go backend and background workers, PostgreSQL/Supabase, browser extension, authentication, subscription billing and deployment.

• Browser-based extraction with rod/Chromium and fallback selectors for changing page layouts.
• Queued notifications with retries across email, Slack, Discord, Telegram, Microsoft Teams and webhooks.
• Web app deployed on Vercel and Go workers on Hetzner, with OpenTelemetry and SigNoz for monitoring.

Status: I no longer actively develop it, as AI tools can now handle this kind of monitoring.

mac-cmd-scroll

github.com/kfurgol/mac-cmd-scroll →

A browser extension that enables Windows-style ctrl+scroll zooming but with cmd+scroll on macOS browsers.

Key features:

• cmd + scroll down = zoom in
• cmd + scroll up = zoom out
• Compatible with Brave, Chrome, and Edge

Status: Complete

Auto Scroll

Chrome Web Store →

A small browser extension I built that adds middle-click autoscrolling to Chrome and Brave, including on macOS. Move the mouse to control scrolling, with adjustable speed and an optional mode for scrolling in any direction.

Status: Complete