Niels Leenheer

Niels Leenheer

Niels is a self-professed browser geek. He loves procrastinating, collecting weird devices with even stranger browsers, drawing pixel art monsters, procrastinating, researching obscure browsers and tinkering with hardware.

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Baseline – which features are safe to 
use on the web today? DevFest Malta November 2025
Making money with Project Fugu DevFest Warsaw November 2025
Baseline – which features are safe to 
use on the web today? HalfStack London November 2025
How I used CSS animations to draw a clock on an oscilloscope HalfStack London November 2025
Resilience HalfStack Phoenix January 2025
Resilience HalfStack London November 2024
Making money with Project Fugu DevFest Venezia December 2023
Making money with Project Fugu HalfStack on the Shore(ditch) November 2023
Making money with Project Fugu DevFest Hamburg November 2023
Making money with Project Fugu HalfStack Vienna September 2023
Tips and tricks to improve your slide design skills GDE Summit January 2023
Sharing cat gifs after the twitpocalypse HalfStack London November 2022
Turtles all the way down HalfStack on the Thames September 2022
Turtles all the way down HalfStack at the Beach July 2022
JavaScript on Microcontrollers FOSDEM February 2020
JavaScript on Microcontrollers HalfStack Phoenix January 2020
JavaScript on Microcontrollers HalfStack London November 2019
JavaScript on Microcontrollers FrontMania November 2019
JavaScript on Microcontrollers Mobile Era November 2019
Sharing cat gifs after the apocalypse Fronteers Jam Session October 2019
Enhanced Tracking Protection in Firefox Mozilla TechSpeaker Meetup September 2019
I’m very sorry Ad Blocker Dev Summit September 2019
Fun with Bluetooth Food ‘n Code September 2019
JavaScript on Microcontrollers HalfStack Vienna September 2019
JavaScript on Microcontrollers HalfStack New York August 2019
Fun with Bluetooth OdessaJS July 2019
JavaScript on Microcontrollers YGLF Lithuania May 2019
Fun with Bluetooth DACHFest November 2018
Fun with Bluetooth Mobile Era 2018 November 2018
Fun with Bluetooth Refresh Conference October 2018
Fun with Bluetooth Undefined.js October 2018
Turtles all the way down Fronteers Jam Session October 2018
Fun with Bluetooth NLHTML5 August 2018
Fun with Bluetooth enterJS June 2018
Fun with Bluetooth Drupal Tech Talk June 2018
Fun with Bluetooth Amsterdam JSNation June 2018
Fun with Bluetooth Front-end United May 2018
Fun with Bluetooth JSConf Belgium May 2018
Fun with Bluetooth DevDays Vilnius May 2018
Fun with Bluetooth Universal JS Day April 2018
Fun with Bluetooth Frontend NE April 2018
Fun with Bluetooth GDG DevFest NL November 2017
Fun with Bluetooth Halfstack November 2017
Fun with Bluetooth Domotica Grunn November 2017
Don't Panic Fronteers Conference 2017 October 2017
Fun with Bluetooth code.talks 2017 September 2017
Monsters, brievenbussen en andere onzin Domotica Grunn September 2017
Monsters, mailboxes and other nonsense Front-Trends 2017 May 2017
Monsters, mailboxes and other nonsense IndieWebCamp May 2017
Flexbox Joomladagen March 2017

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