I am a Software Information Technologist with a broad range of interests that extend beyond IT. My background spans diverse areas within the field, and I approach each new challenge as an opportunity to expand my knowledge and skills.
This is my personal website, which may include many things but it will cover mainly Information Technology, education and any kind of hobby projects. Originally, I created this website to learn Drupal but it will be used for personal purposes in practice as well.
Featured project: Nemesis Information System (NIS) is a business management system and webshop engine with lots of useful features in the e-commerce area. The target audience of this system is mainly small companies, who need a fast and easy solution for building a website and/or a simple business management system for basic tasks, but it may also be useful for home users, who need a smart application for managing business of their household.
This guide explains how to create a portable, encrypted development environment that runs entirely from external storage. It outlines how to combine VeraCrypt for encryption, VirtualBox for virtualization, the PortableApps Platform for mobility, KoboldCpp for local AI inference, and VSCodium for coding.
The result is a self-contained workspace that remains secure, consistent, and independent of the host system—ready to plug in and operate wherever you need it.
This article covers how you can build a secure, encrypted mini-server on a Raspberry Pi device using VeraCrypt and LXD containers step-by-step assuming you already have a working device with (a Debian-based) operating system installed.
In this post you will learn how you can build quickly a multilingual text recognition and translation web application based on Tesseract-OCR, LibreTranslate, Apache 2 and PHP that runs on Ubuntu Server 22.04 LTS.
This article is about how I built my first solar-powered workstation to survive a potential energy-crisis. Price for energy is rising in Europe, electricity is getting more expensive but I'll still have to do my job somehow so, for me, the solution is becoming independent from public utility network as quickly as possible. Not because it's cheaper, it's not cheaper at all in short term; I consume what I produce with my own utilities and I have to maintain them on my own and maintenance costs extra money. It simply makes me feel more secure that I can continue working even when power is completely out of public network.
This article will cover how you can replicate Nemesis Information System's web application between 2 or more Windows hosts keeping all of your data in the database and your entire configuration applied on the web application.
Assume you are a system administrator and you have forgotten your username or password so you have no longer access to your database. You don't have any other access to your database, you cannot reset the SYSDBA user's password because other people or applications are using it and you don't have access to them either but you really need access to certain records quickly. How annoying is that? Luckily, there is a solution for this problem but we also have to assume that we can shut down the database server for a short time.
Few years ago I wrote a simple bash script to generate employee codes for future project management systems. Now, that the time has come to create a system that must be able to generate employee codes automatically, I realized that it is more elegant to generate employee codes directly with PL/SQL functions so the script has become completely useless. I was going to delete it permanently from my filesystem, but then checked the code and decided to post it here because it is a simple but perfect example of how fast problems can be solved using Linux bash only. Experts can skip this post because probably it will show nothing new for them.
