Posts on Alex Here - Blog

Netriders 2026

Sun, 10 May 2026 00:00:00 +0000

Finished strong!

Netriders Prep & Quick Break

Sun, 03 May 2026 00:00:00 +0000

Been buried in Netriders competition prep lately—practicing my packet tracer, all that good stuff. It’s been a rush getting ready, but I’m happy with how it’s coming together.

I’ll be off the grid for a few days while the competition runs, so no new posts until I’m back. Wish me luck!

post recovery

Tue, 21 Apr 2026 15:00:00 +0700

Hey everyone! Just a quick update from me.

I’ve been a bit under the weather this past week. I caught a little flu, unfortunately. Nothing too serious, but enough to slow me down a bit. I’m feeling much better now and getting back into the rhythm of things.

On a brighter note, I finally watched Project Hail Mary last week! What a film and if you’re into sci-fi with a good mix of humor and heart, I’d definitely recommend it. Without spoiling anything, let’s just say it reminded me why I love stories that blend science with human connection.

What I Learned About Infra Interviews Last Weekend

Tue, 14 Apr 2026 10:00:00 +0700

Last Saturday I met up with a senior of mine who’d been grinding away at their infrastructure interview prep. We chatted and he started walking me through what he’d been studying—different scenarios, real interview questions he’d encountered, the whole process.

I was honestly surprised by how realistic everything was. These weren’t textbook “what is TCP” questions. The scenarios had constraints, trade-offs, incomplete information. Just like actual industry production.

What hit me hardest was realizing how hard this actually is. I’d assumed infra interviews were about knowing your tools and protocols. But watching my senior work through these scenarios, I saw how much it demands—systems thinking under pressure, knowing what to ignore and what to investigate first. It’s not just knowledge. It’s judgment.

Structural Similarity Index (SSIM)

Tue, 07 Apr 2026 16:08:00 +0700

Why I Built SSIM From Scratch for My VSS Project

I’ve been working on a project called Visual Secret Sharing (VSS) for my final project in uni. It’s been a deep dive, taking color images, breaking them into shares that look like static noise (or not), and then reconstructing them. Along the way, I hit a problem: how do you actually measure if your reconstruction is any good?

Most developers instinctively reach for MSE or PSNR when evaluating image quality. I did too at first. The problem is they measure pixel differences, not what the eye actually notices. They’re simple to compute, sure, but they don’t match what our eyes actually see. And when you’re working on something as visual as image reconstruction, that’s a pretty big problem.

Hello, World! ᕕ(⌐■_■)ᕗ ♪♬

Tue, 31 Mar 2026 15:10:16 +0700

Hey there! I’m Alex, and welcome to my little corner of the internet. This is my first post, so I figured I’d start with a quick introduction.

I’ve been thinking about starting a blog for a while now, and today I finally took the plunge. Why? Because I believe in sharing knowledge and experiences. We all learn from each other, right?

If you want to learn more about me, visit my personal site at alexhere.me.