MacOS · Jul 8, 2026
How macOS Evolved: From Tiger to Modern macOS
An engineer guide on how macOS has changed over the years.
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Dmitry Yarygin Tech
Applied QA, Android Automation & Mobile Traffic Analysis
I publish hands-on tutorials for QA engineers and technical professionals who want a deeper understanding of mobile apps—from automation and debugging to traffic analysis and security testing.
Fresh from the lab
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Android · Jul 2, 2026
Debloating the Lenovo Idea Tab (TB336FU): A Practical ADB Guide
A practical guide to safely debloating the Lenovo Idea Tab TB336FU and modern Lenovo tablets using ADB, without root or bootloader unlock.
NixOS · Jul 1, 2026
Nix Packages on macOS: Could It Be Better Than Homebrew?
Let's compare which package manager works the best for macOS.
linux · Jun 24, 2026
XDG Portals on Linux: The Invisible Layer Between Apps, Sandboxes, and Your Desktop
A practical Linux article explaining what XDG Desktop Portals are, how they work with Flatpak and Wayland, and how to debug them from the terminal.
linux · Jun 24, 2026
D-Bus Explained for Windows Users: Think of It Like the Registry... Until It Isn't
A practical introduction to D-Bus using Windows Registry analogies, with terminal examples and Linux internals.
JavaScript · Jun 18, 2026
JavaScript Testing Frameworks Beyond Playwright: Jest, Vitest, Cypress, WebdriverIO, and What to Actually Use
A practical QA-focused guide to JavaScript test frameworks in 2026: when to use Jest, Vitest, Testing Library, MSW, Cypress, WebdriverIO, Mocha, and Node's built-in test runner.
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Hands-on workshops for Appium, Android traffic analysis, Charles Proxy, Frida, Objection, and QA automation workflows.
About Dmitry
I’m Dmitry Yarygin, a QA engineer, educator, and technical content creator focused on practical mobile testing, automation, Android debugging, and security-oriented QA workflows.