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I build websites, apps, AI tools and automation for businesses that want to move faster, sell better and turn messy ideas into useful digital products.

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Collaboration focus

What I can build

  1. 01Websites & apps
  2. 02AI tools & automation
  3. 03Business systems
  4. 04Growth strategy
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Preferred contact method

Email

info@rijnhartman.com

Ideal for project inquiries & briefs

Project brief

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Response time

Within 2 business days

I personally review every inquiry and respond as soon as possible.

Availability

Open for new projects

Currently taking on websites, apps, AI automation and growth system builds.

Manifesto

How I think

  1. 01Useful before clever
  2. 02Speed with judgment
  3. 03Systems that compound
  4. 04Build what sells
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Tell me about the build

Notes on how I work

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01

Make it clear

Every project starts by making the idea clear: what it is, who it serves and how it should help the business move.

02

Build around outcomes

The work is shaped around practical outcomes: launch faster, sell better, automate the right things and reduce manual work.

03

Create the system

Websites, apps, AI tools and systems are built to work together instead of living as disconnected one-off pieces.

04

Grow real businesses

The goal is simple: useful tools that launch, sell, scale and create real momentum for the business.

Featured project

x Create

x Create builds websites, apps and automation for businesses that need practical technology, not noise. The work is about taking an idea, making it clear, building it properly and getting it in front of customers.

View case study
Role
Founder
Builder
Year
2026