Welcome to the Jukebox Podcast from WP Tavern. I’m Nathan Wrigley. Jukebox covers WordPress: people, events, plugins, blocks, themes — and in this episode, a firsthand look at the CloudFest Hackathon.

CloudFest takes place in Europa Park, Rust, Germany — a theme park hosting one of the world’s premier cloud and hosting conferences. Just before the main conference begins, the CloudFest Hackathon gathers developers, UX designers, system architects, and open source enthusiasts for an intense three-day collaboration focused on maintaining and improving the open web. Unlike many hackathons that push single-company APIs or startup pitches, CloudFest’s event is professional, non-commercial, and aimed at sustaining the ecosystem.

Carole Olinger, head of the CloudFest Hackathon, explains the event as a gathering of open source contributors who often haven’t met before, brought together to work on projects over three days. Her organizing team includes Lucas Ratke (Automattic), Alain Schlesser (Yoast), Thierry Muller (Google), and volunteer support from Simon Kraft (Group One). Planning begins months ahead: initial goal-setting in September, intense preparation from October, and a particularly hectic January.

Project selection has evolved. This year the team received 22 pitches and selected ten projects that align with CloudFest’s themes — notably AI — and prioritize cross-CMS collaboration. The hackathon intentionally brings together people from WordPress, TYPO3, Joomla, Drupal, and other communities to foster interoperability and shared solutions.

Participant selection is careful: roughly 300–400 applications for 110 spots. Partners supply part of the attendee pool, so about 60 slots were available to independent open source contributors this year. Applicants list skills during enrollment, which the organizers match to project needs. While attendees initially choose projects after short pitches, the team monitors skill coverage and gently reassigns people to ensure each project has the talent it needs.

Sustainability after the event is increasingly emphasized. The goal is not just three-day prototypes but durable outcomes that attract attention, resources, and ongoing contributions. CloudFest aims to better publicize projects and support follow-up so promising work continues beyond the hackathon.

A jury composed of partner representatives, a Groundbreaker Talents charity representative, and the project support team (nine members total) judges the projects. Awards include Tech Visionary (technical achievement), Pitch Perfect (best presentation), Social Media Master (tracked engagement), Breaking Barriers (inclusive tech and teamwork), category winners, and an overall winner based on points. Sponsorship funds support Groundbreaker Talents.

Why do people travel from 30+ countries for this? Because the cloud is an ecosystem of interconnected open source projects. Bringing maintainers, host operators, plugin authors, and platform engineers together in person dissolves barriers that slow progress when communication is limited to issues and docs. Face-to-face collaboration can clear months of backlog in days, and although prizes exist, the core aim is open source contribution and keeping the web’s plumbing robust, secure, and interoperable.

Voices from contributors and quick project summaries:

– Javier Casares — CMS Cloud Manager: Many one-click installers set up CMS software without configuring the server. This project aims to configure both CMS and server together. The public site and creation software are in progress and expected to meet hackathon goals.

– Mattias Pfefferle — ActivityPub / Fediverse Federated Events: Building a decentralized alternative for event discovery and management to reduce reliance on proprietary networks. Work revealed differences in standard implementations and produced bug reports and federation progress across WordPress and other platforms.

– Milana Cap — WP-CLI with AI: Integrating AI into WP-CLI to support development workflows on local instances. The team delivered a playful “spam machine” MVP on day one and is experimenting with AI behavior in development contexts.

– Patricia BT — CMS Freedom: Using LLMs to extract structure from arbitrary HTML and convert pages into WordPress block themes and content. The plan is to make the tooling adaptable to other CMSs so users can import extracted content into their systems.

– Nemanja Cimbaljevic — AI Accessibility Content Updater: A proof of concept using AI to help improve website accessibility automatically. The team approached the task as trial and error to see what AI can meaningfully fix.

– Anne-Mieke Bovelett — Accessible Infographics: A WordPress block/plugin to make infographics accessible by adding structured metadata and alternative content under the hood. Designed for portability to other CMSs and intended to support bulk processing to retroactively make existing infographics accessible — saving time and cost for organizations.

– Wesley Stessens — Peer-to-peer Federated RAG Framework: A decentralized Retrieval Augmented Generation (RAG) network where anyone can create and share niche knowledge bases. Queries are routed to the best-matching node in a peer-to-peer manner; results augment LLM responses without centralized servers.

– Tadas Pukas — WordPress Staging Environment Manager (Staging to Live): An open source plugin to create and manage staging environments and to sync changes from staging to live. The plugin is nearly complete and available in a public GitHub repo.

Across the rooms, teams tackled varied problems — server configuration, decentralized social and event tools, AI-assisted development and accessibility, content migration, and staging workflows. The atmosphere mixes competitive presentation with genuine community-driven problem solving; many contributors stayed late into the night, driven by the work and camaraderie.

CloudFest’s hackathon demonstrates the power of in-person collaboration to accelerate open source solutions that keep the web resilient. You don’t have to be a coder to contribute: projects need designers, marketers, project managers, and other roles. CloudFest 2026 events are upcoming in both the US and Germany. For details and links, visit wptavern.com/podcast.

Thanks for listening — more from CloudFest and the hackathon will follow.

Nathan Wrigley introduces the Jukebox Podcast from WP Tavern and explains this episode’s focus: a firsthand look at the CloudFest Hackathon, the three‑day event that precedes the main CloudFest conference in Europa Park, Rust, Germany. Unlike single‑vendor hackathons, CloudFest’s is professional, non‑commercial, and aimed at maintaining and improving the open web by bringing together developers, UX designers, and system architects to collaborate on open source projects.

Carole Olinger, head of the CloudFest Hackathon, describes the event as a gathering of open source enthusiasts who meet for three days to code, design, and improve projects together. She leads the operation with support from a project support team that includes Lucas Ratke (Automattic), Alain Schlesser (Yoast), Thierry Muller (Google), and volunteer Simon Kraft (Group One), who helps with logistics and attendee care.

Planning begins months ahead. Initial discussions start in September to set objectives and gather feedback; active work ramps up in October and intensifies into January. Carole emphasizes the careful selection of projects and attendees. This year they received 22 project pitches; the organizers considered CloudFest’s theme (including AI) and sought cross‑CMS collaboration—WordPress, TYPO3, Joomla, Drupal and others—so projects could benefit multiple platforms.

Attendee selection isn’t a free‑for‑all. CloudFest receives 300–400 applications for roughly 110 slots. Partners contribute funds and candidate slots, leaving about 60 spots for open source contributors. Applicants provide skills during their application, and organizers match those skills to project needs. During the initial pitch session, attendees choose projects, but staff actively monitor group balance and may reassign people to cover missing skills and maximize each project’s chance of success.

Sustainability and follow‑up are growing priorities. Carole wants to better publicize hackathon outputs and secure resources so projects can continue after the event. The goal is to help projects gain traction, support, and longevity beyond the three days.

There is competition: a jury of nine people (representatives from top partners, the Groundbreaker Talents charity initiative, and the project support team) awards prizes in categories such as Tech Visionary (technical achievement), Pitch Perfect (best presentation), Social Media Master (tracked engagement), and Breaking Barriers (inclusive technologies and diverse collaboration). The overall winner is the project with the most points. Sponsorship funds for awards go to the Groundbreaker Talents initiative.

Nathan reflects on the why: the cloud is built from countless open source projects and the people who maintain them. CloudFest Hackathon creates a “human API” by putting plugin maintainers, host engineers, and other specialists in the same room. Problems that might languish for months are often resolved quickly when the right people can talk face‑to‑face. While awards exist, the primary aim is contributing to free and open source software, strengthening interoperability and infrastructure.

Voices from contributors (short summaries):

– Javier Casares — CMS Cloud Manager: Aims to configure both CMS and server together (beyond one‑click installs), providing a public interface and backend software to set up CMS instances and server settings.

– Mattias Pfefferle — ActivityPub / Fediverse: Working on federated events to create a decentralized alternative to big proprietary event platforms like meetup.com. Progress includes filing interoperability bug reports and improving standards for federation between platforms.

– Milana Cap — WP‑CLI + AI: Introducing AI into WP‑CLI to aid development workflows in local environments. The team produced an MVP quickly and experimented with AI behavior in local setups.

– Patricia BT — CMS Freedom: Using LLMs to parse arbitrary HTML, detect structure and elements, and convert pages into WordPress block themes and content. The goal is cross‑CMS adaptability so other systems can use the extracted data to import content.

– Nemanja Cimbaljevic — AI Accessibility Content Updater: Building a proof of concept where AI helps improve website accessibility. The project is a trial‑and‑error effort to determine practical improvements AI can make.

– Anne‑Mieke Bovelett — Accessible Infographics: Developing a WordPress block to upload infographics and generate the extra descriptive information needed to make them accessible. The plan includes conceptualizing a cross‑CMS solution and bulk conversion tools for sites that already host many infographics.

– Wesley Stessens — Peer‑to‑peer Federated RAG Framework: Creating a decentralized Retrieval‑Augmented Generation network where anyone can publish niche knowledge libraries. Queries are routed peer‑to‑peer to the best matching node; retrieved documents then augment LLM responses without centralized servers.

– Tadas Pukas — WordPress Staging Environment Manager (Staging to Live): An open source plugin (already in a public repo) to create staging environments and sync changes from staging to live. The team focused on final touches for distribution.

The episode emphasizes that hackathons need varied talents—designers, marketers, project managers, as well as coders—and that the hackathon’s energy, face‑to‑face collaboration, and cross‑community mix produce outputs that strengthen the web’s infrastructure. CloudFest 2026 and the CloudFest Hackathon will continue this tradition; listeners are directed to wptavern.com/podcast for show notes and links. The podcast will return with more coverage from CloudFest and the hackathon.