Digital Orchestra, s.r.o.

Con gioiaĽudovít Lučenič

Notation of the notes hidden in the company name, in German note names: D, G, A, C, H, E, Es, A 𝄞 4 4 D G A C H E ♭Es A

The notes hidden in the company name, in German note names. Bach played with his own name the same way: B‑A‑C‑H.

I design and build custom information systems, most often for the financial sector. I also develop my own platform, Arinas, the accounting app Moje Účtovníctvo and the Moja eFaktúra service.

Write to meWhat I do

Simple things fast,
complex things simply.

My mission is to create solutions that make work easier and are a joy to use. And I get to enjoy creating them, too.

Services

First conversations can turn into years of operation. Time will tell how many bars we play together.

Custom software development
Information systems, internal applications and integrations. I design, build, deploy and maintain them.
Analysis and design
I map the processes, write down the requirements and design the architecture, so that it is clear what will be built before programming starts.
Project consulting
I help with planning, estimates and choosing the technology, including when a project already under way has stalled.
Data
Data analysis and transformation, migration from older systems, outputs and reports.
Infrastructure
Design and setup of the hardware and software the system runs on: servers, virtualization, deployment.
Free software
Solutions built on free software. Arinas itself is published under the GPL‑3.

Collaboration in four bars

  1. 1Moderato

    We identify the goalTogether we define what the solution should achieve and how we will know that it works.
  2. 2Allegro

    A fast working prototypeWithin a short time you have a working application in your hands and can try it out.
  3. 3Presto

    Fine-tuning in real timeToday’s AI models combined with the architecture of the Arinas platform make it possible to turn your requirements into a working application almost instantly. We tune together, like an orchestra in rehearsal.
  4. 4Perpetuum mobile

    Ongoing maintenanceI keep maintaining and monitoring the system, and step by step we automate its routine tasks.

Products

Alongside client work, I build my own instruments. Arinas is the one I play on, and Moje Účtovníctvo is a piece written for it.

Arinas

a software development platform

In Arinas, a program is a tree of modules, and that tree is also the architecture of the application. The architecture becomes visible, and you can walk through it and change it. This lets me adapt an existing solution quickly, and I often create a new one by transforming an existing one.

language D · license GPL‑3 · DConf 2025, London

Moje Účtovníctvo

accounting for non-accountants

Double-entry bookkeeping in the browser, built on Arinas. Since October 2026 the first company has been using it in production, and two or three more will join by the end of the year. If you would like to be one of them, get in touch.

Moja eFaktúra

92days until 1 January 2027
Price
€88 per year + VAT
Status
provided since 2 October 2026

From 1 January 2027, VAT payers in Slovakia will issue and receive invoices only electronically, through the Peppol network. Anyone who is invoiced by a VAT payer will also need to be able to receive e-invoices.

As an intermediary of a certified delivery service provider, I connect you to the network. Users of Moje Účtovníctvo have one worry less: Moja eFaktúra is built right into the program. If you use other software, I can build the connection.

I’m interested in Moja eFaktúra

Information about the delivery service provider

The delivery service for electronic invoices (Peppol network) is provided to you, in its own name and on its own responsibility, by Digital Orchestra, s.r.o., with its registered office at Poľná 19, 900 27 Bernolákovo, Company ID (IČO) 47 341 068, registered in the Commercial Register of the Municipal Court Bratislava III, Section Sro, Insert No. 92008/B, which is entered in the list of delivery service intermediaries of the Financial Administration of the Slovak Republic under the certified delivery service provider Verteco digital services, s. r. o., Company ID (IČO) 53 412 834 (PA SK ID EFSK000031). The contractual partner for the delivery service and the entity responsible for its proper provision, including compensation for damage under the legal regulations of the Slovak Republic, is Digital Orchestra, s.r.o.

The delivery service is technically provided by the certified provider Verteco digital services, s. r. o. (EFSK000031), which is responsible for it towards the Financial Administration of the Slovak Republic. Digital Orchestra, s.r.o. is neither an independently certified delivery service provider nor a member of the OpenPeppol network.

You can verify the intermediary’s entry and select the intermediary on the portal of the Financial Administration of the Slovak Republic: vpds.financnasprava.sk (selection of a certified provider). List of intermediaries of the certified provider: peppol.verteco.digital/nasi-sprostredkovatelia.

I’m interested in Moja eFaktúra

You can write to me right away, or first read more about the service at moja-efaktura.sk.

Write an emailLearn more

Projects

Of the more than 40 projects I have been involved in, these are the major systems built on the Arinas platform:

  1. Accounting · September 2026

    Moje Účtovníctvo

    A 30-year-old project brought into a modern form while keeping what was most valuable about it: ease of use. I converted the original 110,000 lines of code into a working application on the Arinas platform in 8 days.

  2. FinTech · 2019–2025

    Information system for a securities dealer

    143 database tables and about 300 functional requirements, developed and maintained by a team of two.

  3. FinTech

    Algorithmic trading simulator for forex

    An environment for testing trading algorithms on the foreign exchange market.

  4. FinTech

    Client management for a crypto bank

    A simple system for keeping client records and managing clients.

About

Ľudovít Lučenič

My name is Ľudovít Lučenič. I have worked as a business and software analyst, programmer, development team lead and software architect, on small applications as well as nationwide systems.

More than ten years ago I chose the D language for an architectural idea. Arinas grew out of it, and I presented it at the DConf conference in London in August 2025.

Today I work on my own. In the past I delivered larger projects with my own team, which I led. We can talk in Slovak, Czech, English, German and, to some extent, French.

“When every instrument knows when to come in, even a complex piece sounds simple. And when it is played with joy, you can hear it.”

Contact

Write to me or give me a call.

Profiles
LinkedIn·GitHub
Company
Digital Orchestra, s.r.o.
Poľná 1725/19, 900 27 Bernolákovo, Slovakia
Company ID (IČO)
47 341 068
Tax ID (DIČ)
2023868957
VAT ID (IČ DPH)
SK2023868957
Commercial register
Municipal Court Bratislava III, Section Sro, Insert No. 92008/B