- sheet
- CRM
You copy data from emails into a sheet
Enquiries from email and forms land in a sheet or CRM on their own, and you get a short summary of the day.
ExampleAI and automationfor small businesses
I take repetitive office work off your business: retyping data, documents, reminders and first phone calls. I build a system that does it on its own, and I stay to keep it running.
Mateusz Reglinski, nefling.dev. I work remotely with businesses across Poland.
CertificatesSent
Certificate of completed health and safety trainingAnna NowakPeriodic training, office roles
Ready 0:42 after the form was filled in
30–60 minutes a day became 2 minutescertificates at a health and safety training firm
Where your time goes
Six places where small businesses lose the most hours.
Yours is different? Tell me about it- templates
You make the same documents from scratch
Certificates, quotes and contracts are built from a template in seconds and go to the client on their own.
Example- SMS
- sheet
You chase clients about payments
A text or email goes out by itself, at the right time, with the right amount. You see who has paid.
Example- Phone
- AI
You miss calls while you are with a client
An AI voice assistant answers or calls back, asks what it is about, and hands you only the real calls.
Example- Website
- Messenger
You answer the same questions again and again
An AI assistant answers from your price list and rules. Difficult questions come to you.
Example- sheet
You download invoices by hand
Invoices go to a sheet and to your accountant on their own, and unpaid ones come back as reminders.
ExampleExamples from your industry
Pick what you do. I will show you where I would start in your business.
Accounting office
TodayClients email documents, each in a different format.
AfterAI reads invoices and receipts, names the files and files them in the client's folder.
TodayEvery month you remind clients about documents by hand.
AfterClients who have not sent anything yet get a reminder before the deadline.
TodayThe same questions about deadlines, ZUS and JPK.
AfterAn assistant answers by your rules and passes unusual cases to you.
Work
Safety training firm
0:42from form to PDF in the inbox
About 2 minutes instead of 30–60 minutes. 115–230 hours a year saved.
- Problem
- 30–60 minutes a day making named PDF certificates by hand and updating the attendance register.
- Solution
- After a course, one form is enough. The system makes the certificates, sends them and updates the register.
Landlord with about 40 flats
38messages with one click
A few seconds instead of an hour a day.
- Problem
- About an hour a day sending payment reminders to each tenant, plus a series of emails for every new lease.
- Solution
- Payment reminders with one click and a welcome sequence that starts when a lease is signed.
CallerAgent
2:14call handed to the operator
People talk to the ones who want to talk.
- Problem
- An operator dialled by hand, number after number, losing time on voicemail and uninterested people.
- Solution
- An AI voice agent makes the first call and hands the operator only the interested people.
Rubin
I use it every day. It is where I test what I later build for clients.
- Problem
- Research, code review and notes scattered across several tools.
- Solution
- An AI agent on my own server, with access to my notes, code and scheduled reports.
PBI-MCP
VATwhite list and NBP rates for AI agents
Open source, on GitHub.
- Problem
- AI assistants do not know Polish company registries or current exchange rates.
- Solution
- An MCP server that gives AI agents access to the VAT white list and NBP exchange rates.
Reviews
I'm looking for my first 5 businesses. In return for the founding discount I ask for permission to describe the result and an honest review after the build, and it will appear right here.
I want to be one of themFirst, we talk.
Free. You show me the one task that takes most of your time.
Then I map one process.
You get a process map: exactly what the automation will do, what it costs and roughly how much time you get back. The price is fixed.
I build and test it with you.
Within 21 days of the deposit and access, on your own data. Important decisions are still approved by a person.
It runs, and I look after it.
If something changes or breaks, I fix it. The code and data stay in your accounts.
- Who
- Mateusz Reglinski, nefling.dev
- Where
- Remote, anywhere in Poland
- What I do
- Automations, AI assistants, voice agents, connecting your software, and reports
Who I am
My name is Mateusz Reglinski. I build automations and AI assistants for small businesses in Poland. I start from your problem, not from a tool: if something can be done more simply, without AI, I will tell you. You work directly with me, from the first call to support after launch.
Built
- CallerAgent, AI voice calls2026
- Safety certificate generator2026
- Tenant reminders2026
- Rubin, my AI assistant2026
- PBI-MCP, Polish registries for AI2026
Rules
- Code and data stay in your accounts
- A person approves important decisions
- GDPR compliant, with a data processing agreement
- A fixed price before we start
- No subscription if you do not need one
What one task costs you
Pick a task you do by hand and move the sliders.
That is 188 hours
worth about €3,750 a year
A small automation would pay for itself in about 5 weeks
An estimate based on 250 working days. We work it out properly on the free call.
Show me how to get these hours backPricing
First a call, then one automation, and after that I keep it running.
Call
For anyone who wants to check whether it makes sense.
- A call by phone or video
- You tell me about one task that eats your time
- I tell you plainly whether and how it can be automated
- You get a ballpark price, no commitment
€0free
Book a callFirst automation in 21 days
For a business that knows what eats its time.
- Process map and a fixed price before we start
- Integrations and tests on your data
- Video guide for you and your staff
- A list of the next 3 things to automate
You pay for it working, not for promises
For 30 days after sign-off I fix anything that does not match the map at no extra cost. If something breaks near the end of that period, I extend it until the automation has run 14 days without a fault, up to 45 days.
from €300for the first automation
Ask for a quoteFixed price, set after the free process map. No VAT added.
For the first 5 businesses: 25% off in return for permission to describe the result
I work alone, so I take on 2–3 new builds a month.
Support
First month free
I keep the automation running and adjust it when a program or the way you work changes. The report of how much time it saved is generated automatically and comes every month at no extra cost.
from €25then a month, or nothing at all, your choice
Questions
Not seeing your question? Write to me and I will reply within one working day.
Ask me directlyNo. You know your business, I know the tools. After launch you get a short guide, and day-to-day use is usually a form, a sheet or a message.
Where I can, I choose tools with servers in the EU or run them on your own server. If an AI model from outside the EU is needed, I tell you before we start and send it only what it needs. Data and access stay in your accounts, and when I process personal data, we sign a data processing agreement.
You'll find the price of the first automation in the pricing section. It's fixed, set after the free process map, with no VAT added. Bigger automations are priced the same way. You pay half at the start and the rest only once everything in the process map works. If an automation will not give you back more time than it costs, I will not recommend it.
For 30 days after sign-off I fix anything that does not match the map at no extra cost. If something breaks near the end of that period, I extend it until the automation has run 14 days without a fault, up to 45 days. After that you choose support from €25 a month, with the first month free, or report issues as they come.
That is not the point. AI takes the boring part of the work, and people look after clients. Important decisions, like sending a quote or a payment, are approved by a person.
Usually what you already have: Gmail or Outlook, Google Sheets or Excel, your invoicing program. I fit around your business, not the other way round.
Let's talk
Tell me which task takes most of your time. I will tell you whether it can be automated and what it costs.
Book a free call
Prefer to write or call?
Remote, anywhere in Poland. I reply within one working day.