Software engineering blog

Practical notes for developers learning to build better software.

Topzee is my way of giving back to the software engineering community: sharing mobile, web, AI, DSA, and build-in-public lessons that can help others learn faster and avoid familiar mistakes.

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Mobile architecture, DSA patterns, AI integrations, and shipping in public.

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Line-art phone outline inside a connected device grid on a blue and teal technical background, representing Xcode Device Hub.

Oct 18, 20267 min read

Mobile Development

Xcode 27's Device Hub Replaced the Simulator. Here's What You Lose and What You Gain

Xcode 27 replaced the iOS Simulator app with Device Hub. Here is what developers are missing, what is genuinely better, and what Flutter devs should check.

xcode 27 device hubxcode 27 simulatorFlutter

White line-art PC monitor connected by a teal line to a gold phone outline on a dark blue and teal grid background.

Oct 18, 20267 min read

Mobile Development

Build iPhone Apps Without a Mac? What xtool Actually Does (and What the Hype Skips)

xtool lets you build, sign and install iPhone apps from Linux or Windows (WSL). Here is how it works, what you still need, and what is still experimental.

xtooliOSSwift

Line-art upgrade arrow rising from a package box on a blue and teal technical background.

Sep 26, 20268 min read

Mobile Development

What's New in Flutter 3.47: What Actually Matters Before You Run flutter upgrade

A practical breakdown of Flutter 3.47's biggest changes: standalone Material/Cupertino packages, Xcode 27 breaking changes, and Impeller on desktop.

Flutter 3.47FlutterXcode 27

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