I am Christian Strunk, a product coach in Berlin. 13 years in product, a master baker by trade, trained in body psychotherapy. Pixelstrunk is my avatar: the builder who plans, designs and ships software with AI, in public.
I work with founders, CEOs and product leaders of startups and scale-ups. I join your leadership meetings, help you set a clear product vision and a roadmap, and bring user story mapping to your team so it ships faster with less rework. For Trade Republic that cut a launch from five months to two.
The same method runs my own products. Every build is on this site as a video, an article and the working files.
Talk to customers before you write a spec. User story mapping turns what you heard into what the team builds next, in that order.
A strategy is a list of things you say no to. One vision, one roadmap, one process that connects the leadership meeting with the team's daily work.
Most products die because nobody wanted them, not because the code was bad. Find the people with the problem first, then build.
There’s the assumption that the “average” person has about 10 ideas in their life that could/would change the world. Very successful people have about 15-20 of these ideas. That’s interesting, isn’t it? How do you really know that an idea could become a life-changing billion-dollar product or...
A user story is a short description of a feature from the end user's perspective: As a [user type], I want [goal] so that [benefit]. This guide covers 10 real-world examples, the INVEST framework, acceptance criteria templates, and how to break epics into stories.
Definition of Ready (DoR) and Definition of Done (DoD) are team working agreements that answer two critical questions: When is work ready to start? And when is work actually finished?
OKRs work best when you see them in action. See 15 real-world OKR examples from Google, Netflix, Spotify, and top product teams. Each example includes the objective, key results, and guidance on how to adapt it.
User story mapping is a workshop-based technique that visualizes the user's journey through your product. This complete guide includes two detailed real-world examples, MVP definition techniques, and how to pitch your story map to teams and stakeholders.
Product coaching delivers 700% median ROI. Learn what product coaches do, why they work, and how to find the right one for your team.
The community for founders and product people who build with AI. A voting board decides what I build next, every second Friday we meet live with your product on screen, and every prompt, skill and blueprint from the builds is in the library. Plus the podcast: 139 episodes with the people who ship with Claude Code, Codex and Cursor every day.
Need support building your product? I coach founders and product leaders. You get a clear vision, a roadmap your team believes in, and a planning process that ships every week. It starts with a free call.
Pixelstrunk is the avatar of Christian Strunk: the builder who plans, designs and ships software with AI, in public. Every build is published in the journal on christianstrunk.com as a video, an article and the working files.
The Product Bakery is the community and the podcast behind these builds, at product-bakery.com. Founders and product people who build with AI meet live every second Friday, a voting board decides what gets built next, and the library holds every prompt, skill and blueprint. The podcast has 139 episodes with the people who ship with AI every day.
In the Product Bakery library. A free account is enough: enter your email on any build, click the magic link, and every file of every build is yours to download, no zip, no newsletter.
Founders, CEOs and product leaders of startups and scale-ups, in Berlin and remote. As a consultant for Trade Republic he cut a launch from five months to two; before that he built products at SumUp, NewStore and Shopgate. The work: product vision and roadmap with the leadership, user story mapping with the team.
For coaching or consulting, book the free first call on the services page. For everything around the builds, join the Product Bakery community, that is where the builds get discussed.
