For 21+ years I've helped tech teams turn developer & customer intelligence into product strategy, grounded in cognitive psychology and a habit of testing my assumptions. I help build communities, and the teams that run them.
So, euh... interesting discussions in the last couple days. Made me look again 👀 at the choices I've made building @sifa.id (public profiles...) 😅
Make sure to pour a cup 🍵 first
🧵👇
So cool, this now makes it a full Arc browser replacement for me (I had already switched back to Firefox over a year ago when Arc was abandoned), this was definitely some of the main things I missed! 🧡
Funny story: I had several people warning me that the apple developer program takes forever to get in.
Turns out I registered for this back in 2011 (only paid once, totally forgot about it). It was dormant ever since and I could just reactivate it without any hassle 😅
Can we get the post below to at least 487 likes to make it the most liked post about ATmosphereConf?
Or should we save that for the actual date/location announcement? 😄
@atstore.fyi would it be possible to add an optional "builder location" field?
That way it can be used to create "locally built atproto apps", which is useful for local atproto community websites, e.g. atproto.nl/tools/
(And also building this for be, no and eu-wide)
I lean on two things that don't always sit together: a cognitive-psychology read on how developers and customers actually behave, and an experimentation
habit (those 500+ A/B tests at Randstad & JDE) to check what works instead of guessing. I'm
still learning, mostly in the open.
Cognitive psychology
Why developers and customers actually behave the way they do.
Business experimentation
500+ A/B tests at Randstad & JDE. Measure what matters, prove what works.
Community building
Helped grow the Joomla!, Magento, CRO.CAFE and Spryker communities.
(AI) automation
Reliable AI workflows and local-first tooling that earns its keep.
Guido has a rare ability to translate community insights into tangible business intelligence, and to bring the business closer to the community.
Svitlana Kulynych Head of Learning Experience, Spryker · worked with me at Spryker
Recommendation excerpts written by colleagues on LinkedIn
"Guido is a thought leader in community building and developer relations. Any company serious about building an ecosystem should talk to him."
"Guido consistently brought energy and openness, making it easy to connect on both professional topics and personal interests like AI and podcasting. He also excelled at connecting people across business and technology, turning community exchanges into actionable collaboration. Guido showed real leadership without ever being my manager, creating alignment and momentum simply by bringing people together."
"He delivered results that mattered: developer feedback shaped our product roadmap, engineering teams connected directly with external developers, and our community became stronger after each challenge."
"Conversion rate optimization, psychology, leadership, and business are just a few of the topics he's spoken to at the highest level."
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that's me