Hi, I'm Felix!

Full-stack software engineer and open source contributor.
I work on mobile and web products and organize events to bring developers together.

See my services and projects

Services

I build and advise on mobile and web projects — from architecture and development to store releases and hosting

Mobile App Development

Cross-platform Android and iOS apps with Flutter — from architecture to a shippable product, including ongoing maintenance.

Web Development

Websites and web apps with a focus on clean UX, performance, and maintainable code.

App Store Publishing

Google Play and App Store releases — signing, listings, screenshots, submission, and review.

Web Deployment

Hosting on a custom domain — DNS setup and a deployment process for publishing changes.

Consulting

Support for freelancers and companies — consulting on building Flutter apps (architecture, state management, release process, etc.), on websites and web deployment, and on advertising.

Attended Conferences

Growing with the community and exchanging ideas with leaders in the field.

Google I/O Connect 2026

Berlin, DE

Nerdearla 2025

Madrid, ES

Upscale Conf 2025

Málaga, ES

OpenSouthCode 2025

Málaga, ES

Google I/O 2024

San Francisco, CA

Upscale Conf 2024

Málaga, ES

FlutterCon 2024

Berlin, DE

OpenSouthCode 2024

Málaga, ES

FlutterCon 2023

Berlin, DE

OpenSouthCode 2023

Málaga, ES

Projects

Apps, websites, and other projects I've built

Picture describing the Park Radio project
Park Radio

Flutter app for streaming the Argentinian radio channel Park.

App
2025
Picture describing the This Person Does Not Exist project
This Person Does Not Exist

Flutter app reproducing the web page thispersondoesnotexist.com, which generates not existing people using AI.

App
2024
Picture describing the Gamper-Schwienbacher project
Gamper-Schwienbacher

Web page of the engineering office Gamper-Schwienbacher.

Web Page
2023
Picture describing the 3D Printing Projects project
3D Printing Projects

I love designing and printing 3D designs with my Creality Ender 3 Pro printer. Some of my designs are available on Thingiverse.

3D Printing
2020 - now
Picture describing the GWL Webpage project
GWL Webpage

The web page of the law office Gapp Wielander Laurenza.

Web Page
2020
Picture describing the Bleckl project
Bleckl

Flutter app. Re-make of WattenZähler. Point counter for the South Tyrolean card games Watten & Sockn.

App
2020
Picture describing the VerkehrsInfo Radio 2000 project
VerkehrsInfo Radio 2000

Native Android app for traffic announcements in South Tyrol. Supported by the traffic reporting centre. Powered by Radio 2000.

App
2014
Picture describing the dieAntenne - Sportergebnisse project
dieAntenne - Sportergebnisse

Native Android app for South Tyrolean live football scores. Powered by Radio Die Antenne.

App
2013
Picture describing the WattenZähler project
WattenZähler

Native Android point counter app for the South Tyrolean card game Watten. (Now replaced by Bleckl)

App
2012

Open Source

Flutter packages I maintain and contribute to

Picture describing the open_with_app project
open_with_app

Maintainer of open_with_app, a Flutter package for opening specific file types with an app.

Flutter Package
2025
Picture describing the TinyColor 2 project
TinyColor 2

Co-Maintainer of the community fork tinycolor2, forked from the original tinycolor Flutter package.

Flutter Package
2021
Picture describing the Number Paginator project
Number Paginator

Maintainer of number_paginator, a Flutter package for implementing pagination using page numbers.

Flutter Package
2021
Picture describing the HSV Color Pickers project
HSV Color Pickers

Maintainer of hsv_color_pickers, a Flutter package that offers widgets for picking the different attributes of a HSV color: hue, saturation and value.

Flutter Package
2021
Picture describing the Gallerize project
Gallerize

Maintainer of Gallerize, a Flutter package for creating a gallery (demo) app for developed Flutter packages/widgets.

Flutter Package
2020
Picture describing the Backdrop project
Backdrop

I am co-maintainer of the Backdrop package of Flutter Community. It implements the backdrop-functionality from the Material Design specification.

Flutter Package
2019

Blog posts

The blog posts I published on Medium

Flutter open_with_app package

05 Jan 2026

Handling “open with” in Flutter: Introducing the open_with_app package

Flutter number_paginator package

05 Jan 2026

number_paginator: a Flutter package for pagination

Flutter web deployment with GitHub actions

28 Dec 2020

Automatically deploy Flutter web project to GitHub pages using GitHub actions