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WeAreDevelopers LIVE • Jan 21, 2026

WeAreDevelopers LIVE – You Don’t Need JavaScript, Modern CSS and More

Chris Heilmann , Daniel Cranney , Theodore Lefevre

Theodore Lere proves you can ditch JavaScript for complex UI interactions. Learn how modern CSS and semantic HTML natively handle modals and accordions, eliminating unnecessary codebase bloat.

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#1 about 8 min

Reevaluating the default reliance on JavaScript for interactions

Modern semantic HTML and CSS natively handle interactions and accessibility without unnecessary JavaScript dependencies.

#2 about 8 min

Managing AI generated code and slop in open source

Open source maintainers face overwhelming volumes of low-quality AI generated pull requests that game bug bounty programs.

#3 about 7 min

Handling complex date calculations with the Temporal API

The new Temporal API replaces the legacy JavaScript date object to provide predictable and standard time zone handling.

#4 about 6 min

Navigating native HTML regressions and browser compatibility issues

Broken native input elements like datalist on Safari force developers to implement complex custom UI workarounds.

#5 about 4 min

Exploring bad interface design through web navigation bots

Automating UI navigation exposes the extreme inefficiency and complexity of modern web application interactions.

#6 about 4 min

Understanding the repeated failures of 3D web environments

Virtual reality and 3D web applications remain novelties due to poor usability, nausea, and missing physical haptics.

#7 about 5 min

Analyzing bizarre technology headlines and software engineering news

A review of strange technological developments highlights AI lawsuits, extreme monetization, and evolving malware threats.

#8 about 7 min

Building accessible accordions using native HTML details tags

The native details and summary HTML elements provide fully accessible accordion components without relying on JavaScript event listeners.

#9 about 7 min

Creating interactive modal dialogs natively without JavaScript logic

The HTML dialog element combined with command invokers allows developers to build functional modals directly in the markup.

#10 about 7 min

Highlighting table of contents dynamically using CSS properties

The target-current and scroll-target-group CSS properties offer a native alternative to JavaScript intersection observers for navigation highlighting.

#11 about 9 min

Navigating CSS complexity and embracing core frontend technologies

Mastering fundamental CSS and HTML capabilities prevents developers from overusing external frameworks and unnecessary JavaScript abstractions.

Matching moments

3:51 min

Audience questions on accessibility and framework tradeoffs

Rowdy Rabouw Rowdy Rabouw · World Congress 2022

1:12 min

Overview of the JavaScript date and time ecosystem

Marco Sieben Marco Sieben · Europe 2026 Virtual

4:30 min

Tracking open source community trends in JavaScript native frameworks

Dan Cranney +2 · LIVE

2:14 min

Exploring frontend development choices beyond standard JavaScript frameworks

Stacy Cashmore · World Congress 2022

5:12 min

The rapid evolution of JavaScript and web tooling

Lorenzo Pieri · World Congress 2023

10:20 min

Advocating for semantic HTML over complex framework component workarounds

Chris Heilmann +2 · LIVE

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World Congress 2026 North America

September 24, 2026 · 12:50–13:20

Stage 7

Architecting Agentic Apps: WebMCP, A2UI, and Agent Experience

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Sr. Principal Engineer @ Secureworks | Angular GDE

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Open session

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Organizer of flutter vienna meetup and CEO of marqably

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Stage 6

Small LLM in your Browser: Huge Opportunities for Web Applications

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UI/UX Architect at Payoneer | AI Architect | Full Cycle Development Expert | Public Speaker | Open Source Contributor |

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Open session

World Congress 2026 North America

September 25, 2026 · 09:40–10:10

Stage 5

Vibe Coding Accessibility

Karl Groves

Focused on actively fixing accessibility

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Open session

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