Easy Guitar Tuner
guitar.sisqo.devA chromatic tuner for 6-string guitar, 12-string guitar, and ukulele: real-time pitch detection straight from your microphone, no app install.
I'm Francesco Limberti — SisQo around here. I started writing code at 8 years old and never really stopped; three decades later it's still web projects, one deploy (and the occasional 2am debugging session) at a time.
As a developer, I work full-stack: Java, Spring Boot, MySQL, Redis, and Docker, on cloud infrastructure I own end to end, with years of e-commerce at real scale behind me. Clean Code by Robert C. Martin is still my core reference for how I reason about software: readability over cleverness, always. But clean code is the starting point, not the goal — what I care about is architecture that holds up, systems that stay fast under load, and code that reaches production.
Somewhere along the way I stopped just writing code for other people's ideas and started building my own. As a founder and CTO, I've built and led an e-commerce company from zero, steering both the technology and the business. What pulls me in is always the same: a real problem worth solving, and the shot at turning an idea into a product that reaches people at scale. The engineering is the easy part; making it matter is the work.
More recently that work runs on AI. I integrate LLMs into products that live in production and build agents and automations that do jobs that matter, built on the major model APIs with tool use and MCP where they earn their place. My take on AI is deliberately pragmatic: a genuinely powerful tool, best pointed where it creates real value, and ignored where it's just noise. I'd rather ship something useful with it than talk about it.
Three roles, one habit: I like building things that work, and then making them work better.
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Projects I build outside client work, just for the fun of shipping something end to end. Small tools and sites, real users, live in production rather than sitting in a repo.
A chromatic tuner for 6-string guitar, 12-string guitar, and ukulele: real-time pitch detection straight from your microphone, no app install.
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