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Coffee With Developers • Jun 5, 2025

Building Collaborative Open Source tools for Developers and Designers - Pablo Ruiz-Muzquiz from Penpot

Pablo Ruiz-Muzquiz

Pablo Ruiz-Muzquiz claims the design-to-code handoff is broken by a fundamental paradigm gap. Discover how Penpot leverages WebAssembly and declarative CSS rules to finally speak the developer's language.

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#1 about 3 min

Introduction to an open source design prototyping tool

Real-time web collaboration platforms enable teams to build software together without losing critical context.

#2 about 3 min

Reconciling imperative and declarative software design paradigms

Conflicting mindsets between visual creatives and structural developers cause friction throughout agile product workflows.

#3 about 3 min

Bringing declarative engineering rules into interface design tools

Introducing native code concepts directly within prototyping environments provides a shared vocabulary for engineering teams.

#4 about 5 min

Encouraging browser workspace adoption among developers and designers

Integrating familiar code syntax alongside an open-source ethos overcomes workflow inertia inside browser environments.

#5 about 2 min

Unifying product developer and visual designer user behaviors

Shared tooling capabilities naturally blend specialized roles and eliminate strict operational boundaries across product teams.

#6 about 6 min

Expanding open source contributions from the creative design community

Delivering polished user experiences shows creative professionals the long-term project value of adopting open standards.

#7 about 13 min

Monetizing open source software using enterprise feature restrictions

Charging enterprises to restrict default application features avoids limiting core software capabilities for individual builders.

#8 about 9 min

Managing open source community technical contributions and architectures

Transitioning legacy browser graphics toward web-assembly systems improves rendering performance and encourages diverse external codebases.

#9 about 5 min

Analyzing the fundamental limitations of generative artificial intelligence

Relying on generic generative tools fails to capture the interactive logic required for functional software interfaces.

#10 about 6 min

Implementing context-aware machine learning capabilities for interaction design

Applying targeted data algorithms streamlines precise interface workflow tasks without removing human creative agency over outputs.

#11 about 6 min

Understanding venture capital influences on the technology hype cycle

Pouring massive financial resources into unproven predictive modeling artificially inflates market urgency without guaranteeing functional workplace solutions.

Matching moments

2:44 min

Evaluating AI tooling and design platforms for developers

Chris Heilmann +2 · LIVE

4:32 min

Audience Q&A on tooling choices and AI application prototyping

MIlan Todorović MIlan Todorović · World Congress 2026 Europe

6:42 min

Improving designer and developer collaboration with unified tooling

Chris Heilmann +2 · LIVE

1:34 min

Reviewing strategies for scaling collaborative user experience practices

Erica Rider +1 · World Congress 2021

4:16 min

Balancing design freedom with framework accessibility restrictions

Chris Heilmann +2 · LIVE

10:09 min

Transitioning from graphic design to large scale frontend architecture

Erasmo Hernandez Erasmo Hernandez · World Congress 2026 Europe

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September 23, 2026 · 14:20–14:50

Stage 2

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Open session

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September 24, 2026 · 16:10–16:40

Outdoor Stage

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