Custom AI tools
A small AI tool copies data from invoices, emails or PDFs for you. You just check the result.
Custom AI tools and software
I help small businesses get rid of repetitive work. I build an AI tool or app made exactly for you, with only what you really need.
First hour of consultation free
Services
A small AI tool copies data from invoices, emails or PDFs for you. You just check the result.
When off-the-shelf software does not fit, I build an app that adapts to you, not the other way round.
I connect your spreadsheets and systems so you never type the same data three times.
AI tool demo
A photo of an invoice, a PDF from your accountant or just copied text is enough. AI reads the payment details, code validates them and you check them before anything is generated. No template, no required format.
1 · Input: anything
payments oct - social ins. 412,30€ IBAN SK31 1200 0000 1987 4263 7541 vs 2026100 due 8 Nov health ins 186,90 same date
2 · AI reads, you check
IBAN and amounts validated by code
3 · Output: QR codes ready to pay
PAY by square · scan it in your banking app and it is paid.
Process
We grab a coffee, online is fine too, and you tell me what slows you down. Nothing to sign, nothing to pay.
I send you a simple proposal and a price, running costs included. No surprises on the invoice.
You see results as they happen and we can change direction any time.
I launch the tool, show you how to use it and hand it over. Further changes are agreed as needed.
Work
Web application
A private community app for sensitive personal data: encrypted database, invitations, GDPR consent and its own server.
.NET · Blazor · Docker
AI tool
Turns invoices and documents in any format into QR codes ready to pay. A person always checks the data first.
AI · PAY by square

Samuel Baniar
Founder and managing director, developer
In the photo: me and Gulo. Neither of us is an AI.
About
Since 2014 I have been designing and building software in .NET: financial systems, back-office software for American university campuses and, as a tech lead, a high-performance backend that processes huge volumes of transactions in real time.
For a long time, custom software was mostly something big companies could afford. AI is changing that: development is much faster today, and so it is far more within reach. I started semeIO to bring that change to small businesses, with experience from large systems to make sure fast never means sloppy.
When my son could not yet say “smerovka”, the Slovak word for a turn signal, he said “semejo”. A turn signal shows where you are going before you turn. That is what I want to do for businesses: show the direction and help make the turn.
And IO? In computing it means input/output. You bring the chaos, you leave with order.
Pronounced: se-me-yo
Contact
A few sentences are enough. I will get back to you within two business days and we will book your free hour.