Sergio Tereshchenko
macOS specialist with a background in technical support and quality assurance.
Author Bio
Specialty

Sergio is a macOS expert at Nektony with an extensive background in technical support and QA.

With a background in technical support, quality assurance, and translation, he creates clear, actionable content on tech, digital tools, and user experience, making technical content accessible to everyone. Since transitioning into content marketing, Sergio has written a wide range of materials, from guides to case studies.

Education

Sergio has got two Master’s degrees in Law and Translation. He continuously sharpens his skills through professional development, including certifications in content marketing, software testing, etc.

Field

Sergio’s hands-on experience with testing software and assisting users with technical issues has given him a strong understanding of how products and tech work, how users interact with them, and what kind of guidance they need to solve problems quickly and effectively.

At Nektony, he creates user-focused content such as how-to guides, app overviews, and troubleshooting articles that simplify macOS tools and utilities. His mission is to turn technical processes into clear, actionable steps that empower users to make the most of their devices.

Certificates
Certificate awarded to Sergio Tereshchenko for completing the course 'The Fundamentals of Software Testing'

The Fundamentals of Software Testing

Articles
Regular apps keep their files as a single bundle. LLMs do not. Files from 2 GB (Llama 3.2 3B) to 40+ GB (Llama 3.1 405B) stay on your Mac in...
If you have ever tried updating Mac apps by yourself, you know how fragmented the process is. One app sends you to the App Store. Another opens a browser tab....
Speaking of Mac app updaters, 2026 has became the year many users started looking for something new after MacUpdater disappeared. On Reddit, people share their alternatives. And two names pop...
Mac app updates are still messy in 2026. Some updates come through the App Store. Others pop up inside the app. A few never show up anywhere unless you manually...
Every Mac, even a clean one, generates a surprising amount of network traffic. In a year when the Global Threat Landscape Report recorded a 500% spike in infostealer malware logs,...
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