About
I'm Luca Silverentand, a Dutch programmer-entrepreneur based in Amsterdam. I build mobile apps, open source tools, and products that people love to use.
I started shipping iOS apps as a teenager — my weather app Mizzle went live when I was sixteen. Since then I've built and launched multiple products, contributed to open source, and co-founded a language learning startup.
I believe the best software combines technical excellence with delightful user experiences. Every product I build starts with a problem I've experienced personally.
What I Do
Mobile Development
Native iOS apps with Swift & SwiftUI, and cross-platform solutions with Flutter. Focused on performance, animations, and user delight.
Product Development
End-to-end product creation from concept to launch. User research, design, development, and growth.
Open Source
Building and maintaining developer tools used by hundreds. SwiftSky powers weather features in apps worldwide.
Startup Building
Co-founding and building SaaS products. Currently working on Ellie, an adaptive language learning platform.
Skills & Technologies
Mobile Development
Backend & Infrastructure
Web Development
Tools & Practices
Machine Learning & AI
Experience
Co-founder & Lead Developer
Ellie
Building an adaptive language learning platform from the ground up. Leading technical architecture, developing the Flutter mobile app, and implementing machine learning algorithms for personalized learning. Grew from 0 to 1,000+ beta users with 67% 30-day retention.
Founder
OneZero Company
Independent software development company focused on mobile apps and web products. Built and launched multiple iOS apps, open source libraries, and client projects. Specialized in Swift/SwiftUI development and product design.
Open Source Maintainer
SwiftSky & Other Projects
Created and maintain SwiftSky, a Swift weather API library with 500+ stars and 100+ apps in production. Active contributor to the iOS developer community through code, documentation, and mentorship.
iOS Developer
Mizzle (Independent)
Designed and developed a delightful weather app for iOS as a solo developer. Built entirely in SwiftUI with custom animations and personality-filled forecasts. Reached 10,000+ downloads with 4.7/5.0 rating, featured in Netherlands App Store.
Self-Taught Developer
Learning & Experimenting
Began programming journey as a teenager, learning Swift through Apple's tutorials and building personal projects. Shipped first apps to the App Store at age 16.
Achievements & Recognition
500+ GitHub Stars
SwiftSky library widely adopted by iOS community
10,000+ Downloads
Mizzle weather app organic growth
67% Retention
Ellie's 30-day user retention (2x industry average)
Tech Writer
Articles featured in iOS dev newsletters and blogs
Beyond Code
When I'm not writing code, I'm usually behind a camera shooting street photography around Amsterdam, experimenting with music production, or exploring new cities. I believe the best developers are curious about the world beyond their screen.
I'm passionate about design, typography, and the intersection of art and technology. These interests deeply influence how I approach product development - always striving for that perfect balance between functionality and beauty.
Currently
- → Building Ellie and preparing for public launch in Q2 2025
- → Maintaining SwiftSky and adding new weather provider integrations
- → Writing about mobile development, product building, and startup lessons
- → Available for select consulting projects and collaborations
Let's Connect
I'm always interested in connecting with fellow builders, discussing product ideas, or helping with mobile development challenges.