Builder Sparring for people with ideas
You have an idea, a product or a technical problem — and you want to know fast what it could really become.
In the age of AI you can build almost anything faster. That's exactly why the decisive question matters more: should you build it at all? I help you sharpen ideas, assess feasibility, spot technical risks and find the next sensible step.
You come in with an idea. You leave with clarity.
Not classic consulting
In the age of AI you can build almost anything faster. But that makes one question more important: what is even worth building?
Not
- months of consulting
- PowerPoint advice
- abstract strategy
- an agency pitch
- “We’ll get back to you with a proposal”
Instead
- an intense thinking session
- a clear assessment
- honest feedback
- concrete next steps
- technical and product-strategic distillation
- fast feasibility clarification
“I'm not the consultant who builds slides for you for three months. I'm the sparring partner who takes your idea apart, puts it back together and tells you what should really be built.”
Why work with me?
Over 40 years of software and architecture experience
Years of experience in enterprise, consulting and product contexts
Deep understanding of AI-driven product development
My own agentic coding setup
Experience with countless app, web-app and platform ideas
Focus on building, not PowerPoint
A strong ability to challenge ideas critically and make them product-ready
“I don't come from theory. I build myself. That's exactly why I often quickly see where an idea is strong, where it breaks down and what's better left unbuilt.”
Who is this for?
A good fit for people who …
- have an idea they can't let go of
- want to build a product but don't yet see the core clearly
- want to check technical feasibility
- want to integrate AI into a product in a meaningful way
- want to know whether building it is worth it
- are facing an important architecture decision
- don't need three months of consulting, but fast clarity
Not a fit for people who …
- just want a free idea rating
- are looking for someone to “quickly” build an app
- don't want to invest energy in their own project
- only want validation
- don't like critical questions
What you get
Depending on the package:
The goal isn't a nice meeting. The goal is clarity.
Packages
Clear prices, clear boundaries. All prices net.
Clarity Sparring
€390 net
For fast clarity and honest feedback.
Good for
- a first take on a product idea
- checking a technical gut feeling
- sorting out an AI / app idea
- the next sensible step
- honest feedback before a bigger investment
What's included
- pre-session questionnaire
- 75 minutes of sparring
- a verbal assessment
- 3 concrete next steps
- a short written summary by email
Not included
- a detailed PRD
- a technical architecture diagram
- market analysis
- implementation
Product Shaping Session
€1,490 net
For product ideas to be sharpened and prepared for delivery.
Good for
- product ideas with serious intent to build
- founders before development starts
- SMEs with a digital product approach
- teams with an unclear scope
- people who want to avoid building the wrong product
What's included
- pre-session questionnaire
- preparation based on existing materials
- 3.5 hours of intensive session
- problem and audience clarification
- product core
- feature prioritisation
- a rough delivery path
- key risks
- technical feasibility
- AI / agentic-coding potential
- a written results document
Output
- Product Shaping Summary
- target audience
- core problem
- product promise
- scope proposal
- a first technical assessment
- the next 5 steps
Build Blueprint Day
€2,900 net
For serious product plans that need a solid delivery plan.
Good for
- serious product ventures
- technical pre-decisions
- AI-native product ideas
- app, web-app or platform ideas
- founders or companies before a development budget
- projects where clarity is more expensive than a wrong start
What's included
- pre-session questionnaire
- analysis of existing materials
- 1 day of sparring
- product core
- target audience
- value proposition
- feature cut
- architecture approach
- rough data-model structure
- stack recommendation
- AI / agent strategy
- risks and assumptions
- delivery phases
- make-or-buy assessment
- a written Build Blueprint
Output
- a compact Product Blueprint
- a technical architecture recommendation
- a prioritised feature structure
- risk analysis
- a concrete delivery path
- a recommendation on what should and shouldn't be built
All prices net, plus VAT.
Request sparring
Tell me briefly about your idea. I review every request personally.