# Guido X Jansen — gui.do > Guido X Jansen builds community functions for tech products. 20+ years > turning open-source platforms into working ecosystems: he founded > communities around Joomla! and Magento (Meet Magento NL, 600+ attendees), > created the CRO.CAFE podcast (200+ episodes across 4 languages), and built > the community function at Spryker from zero. Cognitive psychologist by > training. Based in the Netherlands. This file follows the llms.txt convention (https://llmstxt.org/) and the specification.website agent-readiness spec (https://specification.website/spec/agent-readiness/llms-txt/). ## About - [About Guido](https://gui.do/about/): biography, expertise, credentials, awards - [Contact](https://gui.do/contact/): how to reach Guido - [Press kit](https://gui.do/press/): bio, headshots, brand assets - [Author profile](https://gui.do/authors/gxjansen/): canonical author page with all social profiles ## Services - [Retainer / advisory](https://gui.do/retainer/): community + DevRel advisory engagements - [Services overview](https://gui.do/services/): the engagement menu - [Speaker](https://gui.do/speaker/): conference and event speaking ## Speaking and presentations - [Events](https://gui.do/events/): conferences, workshops, and meetups Guido has spoken at - [Presentations](https://gui.do/presentations/): talk catalogue with abstracts ## Communities and projects - [Communities](https://gui.do/communities/): communities Guido has founded, led, or shaped - [Projects](https://gui.do/projects/): notable initiatives and side projects - [Podcasts](https://gui.do/podcasts/): CRO.CAFE and other podcast work ## Writing - [Articles](https://gui.do/post/): long-form posts on community, DevRel, experimentation, e-commerce - [Newsletter](https://gui.do/newsletter/): how to subscribe - [RSS feed](https://gui.do/rss.xml): full-text feed for syndication ## AMA - [Ask Guido anything](https://gui.do/ama/): public AMA powered by AT Protocol / Bluesky ## Site - [Sitemap index](https://gui.do/sitemap-index.xml): full URL index - [robots.txt](https://gui.do/robots.txt): crawl policy (AI crawlers are explicitly allowed) ## Optional - [Privacy](https://gui.do/privacy/): privacy policy