
I'm Perttu Lähteenlahti, I like building things.
I've always needed to make things with my hands. Started as a carpenter, somehow ended up writing code, designed stuff along the way, and yeah—I've painted a few cars too (long story).
When I'm not working, I'm probably consuming some form of media. Movies, books, anime, games—the full geek package. Coding is weirdly relaxing for me, but when I actually need to step away from the screen, I'm either running or at the gym (the meathead in me needs the balance).
Then there's the apartment thing. I've been buying and renovating properties around Finland—8 so far. There's something deeply satisfying about doing the work yourself, seeing a place transform. Maybe it's the former carpenter in me that can't let go. Two of them are short-term rentals now, and you can book them directly through eames.fi.
Career-wise, I've bounced between startups, corporations, and consultancies. Started four companies along the way (with varying degrees of success, let's say). My bread and butter is React and React Native—web and mobile stuff. I like projects that make me slightly uncomfortable. Worked with some cool clients: Adidas, Nokia, Yle, Fingrid, Alma Media. I also spent a few years competing in hackathons—won 40+ of them.
On the side I design and ship my own iOS apps. Right now that's
SEO Console, Google Search Console for your phone,
Netli.fyi, a native client for managing Netlify projects, and
Convivial, a dashboard and Home Screen widgets for Hospitable hosts.
Recent Writing
I write about React Native, mobile development, and building products.
Reviewing your Shipaton apps
October 14, 2026
How not to ship slop
June 25, 2026
App.js 2026 recap
June 15, 2026