Solutions
My own products. Built for everyday use.
Alongside client work I build my own software — for problems I keep running into. Ready to use and adaptable to your brand.
01 — ValidSlots · Online appointment booking
Appointment booking you own.
ValidSlots bundles years of experience with large-scale lab appointment booking — rethought and developed further by AI agents: multi-tenant, modern and under your brand.
Multiple locations
Branches with their own opening hours and booking windows.
Staff & skills
Services can only be booked where someone with the matching skill is available.
Live calendar
Free slots in real time — no double bookings.
Intake forms
Optional pre-appointment questionnaires per service, from simple to clinical.
Four languages
German, French, Italian and English — on desktop and mobile.
Managed or on-premise
I host it for you, or ValidSlots runs in your own infrastructure — with full data sovereignty.
02 — ValidLearn · Learning platform
Mandatory training that actually sticks.
ValidLearn is a lean, auditable learning platform for recurring mandatory topics. It starts with IT security awareness; the platform is deliberately built so further topics follow the same pattern.
Focused
One clear learning path from enrolment to certificate — no configuration jungle.
Auditable
Who completed what, and when: fully traceable, with reports at the click of a button.
Data-minimal
Only the data needed for training and proof. No tracking, no analytics SDKs.
Hands-on, not theory
In the Phishing Inspector, learners examine realistic phishing emails themselves and get instant feedback.
Re-certification
Certificates with an expiry date and an automatic reminder before they run out.
03 — Mary · Machine-Assisted Recruiting for You
A voice for real conversations.
Mary is an AI voice in the browser, friendly and clearly recognisable as an AI. She introduces people or companies and runs structured first interviews with candidates, no appointment and no app needed.
Introductions
Recruiters and clients ask, and Mary answers only from a reviewed, approved knowledge pack. You can try it live with me as the example; Mary can introduce your company or startup the same way.
First interviews with evidence
Your questions, your competencies, scored against your criteria. Every assessment needs a verbatim quote from the transcript.
A human decides
Mary only recommends and asks no questions prohibited under German anti-discrimination law. You decide whether to proceed, based on the evaluation and transcript.
German and English
Introductions run in both languages, interviews currently in German. Two voices to choose from: Mary or Marc.
Data-minimal
Conversations are deleted after 48 hours, and Mary only knows what you approve.
Next up: scheduling
Scheduling is planned: Mary will then take appointment requests right in the conversation.
04 — Your product
The next product could be yours.
ValidSlots, ValidLearn and Mary started small — as an idea, a prototype, a first MVP. That's exactly the path I'll take with you.
Interested in ValidSlots, ValidLearn or Mary?
I'm happy to show you what the solution could look like in your environment.
Send a request