Hans Otto Wirtz
Software Engineer, CTO, Founder
AltVelo
2025
BubblyDoo
2018 - present
Spices.app
2022, 2025
3D Hanzi Generator
2021 - 2022
angular-react
2022 - 2023
React Done Tracker
2023
GraphQL Workers Subscriptions
2023
Zoemin Website
2018
s[MAS]h!
2017
BN Classic Website
2016 - 2017
Learning Chinese
2018 - present
LP50xx Breakout Board
2019
Wall-mounted computer
2018 - 2021
3D Printing
Treehouse
2011 - 2015
Lego Antwerp MOC
2023 - 2025
UAntwerp Snapchat Filters
2018
Ottomatisch
2016 - 2023
BubblyDoo Renderer
2018 - present
BubblyDoo Website
2018 - present
BubblyDoo Data Pipeline
2022 - present
Arbiter
University of Antwerp Snapchat Filters
2018
Snapchat filters for the University of Antwerp.
A little side project we made for the University of Antwerp, without them asking. Made together with .
They were approved by the university and featured on their .
🏷️ Creative🧰 Adobe Illustrator