Case Study: WordPress Migration & Security Remediation
The client operated a WordPress website that had been running without major updates for several years. The site was built on WordPress 4.9 with PHP 7.4 — both versions that had long passed their official end-of-life dates and no longer received security patches. The frontend was powered by WPBakery Page Builder, a legacy visual editor that had become increasingly difficult to maintain and was creating friction whenever the client needed to update content.
Case Study: datalandhobby.pl — Debugging & Fix Report
Symptoms
Saving a product in the admin panel took over 3 minutes before the page reloaded
All other admin forms (users, texts, orders) saved instantly
The delay occurred regardless of browser, device, or whether JavaScript was enabled
PHP debug logs showed the entire PHP execution completing in milliseconds — the delay was happening before PHP even started
WordPress Plugin PSTRC-Reservation-Calculator
A custom-built WordPress plugin that enables seamless vehicle reservations directly from your website. By placing a simple shortcode on any page, users can access an intuitive booking interface with date selection, real-time availability, and automatic price calculation based on seasonal rates and predefined fixed costs.
PL-TEKST Mobile App
PL-TEKST-App is a cross-platform mobile application developed with React Native and the Expo SDK, enabling a single JavaScript codebase to run natively on both Android and iOS.
Web Pages list
The simplest list of websites made
Excel Polish text from value
PL-TEKST is a project that converts monetary amounts to Polish words, including correct grammatical inflection for PLN, EUR, USD and GBP currencies.
