Posts by ruixiao liu

@ruixiao liu

Luxemn Liu

Programmer focused on web apps, APIs, and solving real-world problems with code....
Joined May 2026
1k Points20 Badges16 Connections17 Followers19 Following

Comments by ruixiao liu

Jul 22 Articles 4 min read
User onboarding is one of the easiest places for fraud to enter a business. It is fast, automated, and built to reduce friction, which also makes it attractive to bad actors. Fake identities, stolen credentials, bot signups, and account takeovers can...
Jul 22 Articles 4 min read
title: Dust Attacks on TRON: How Tiny Transfers Trick You Into Sending USDT to the Wrong Address published: false tags: web3, security, crypto, tron canonicalurl: https://tronsec.io/academy/tron-address-poisoning-scam/ TL;DR Dust attacks on TRON ...
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Jul 22 Articles 4 min read
You've been staring at the same 40 lines of code for two hours. You're convinced the problem is in the database query. You've rewritten it three times. You've Googled the same error message so many times that it's now in your browser autocomplete. Yo...
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Jul 19 Articles 1 min read
If you’re building technologies that help organizations meet the transparency obligations of the EU AI Act—such as AI content detection, provenance, watermarking, or related transparency mechanisms—it’s worth reviewing the registration process. The ...
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Jul 19 Articles 5 min read
Kalman filters shouldn't require a graduate seminar and 200 lines of matrix setup. Here's a small Python library that tries to fix that. Visit: pypi/kalbeehttps://pypi.org/project/kalbee/ The problem with Kalman filters Kalman filters are everywh...
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Jul 7 Tutorials 2 min read
The Crash You pull down a fresh React Native repo, or you upgrade your Expo project, navigate to your ios directory, and run your standard installation command: pod install Instead of a clean build, your terminal drops a wall of text pointing to...
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Jul 7 Articles 2 min read
The problem: you did the AEO work — robots.txt allows GPTBot, llms.txt is live, Product schema is complete — and GA4 shows... nothing. That's not because the work failed. It's because AI referral traffic hides in the wrong buckets: ChatGPT clicks lan...
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Jul 4 Articles 6 min read
The Same War, A Faster Engine: Cognitive Warfare’s Marriage to the Dark Web Underground It took me a few months to write the articles in Cognitive Warfare articles , The most important link, the one with dark web services and threat actors from tor/...
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Jul 4 Articles 3 min read
The MCP ecosystem went from a handful of servers to thousands in under a year. Most of them are demos you connect once and forget. A few have quietly become part of how I work every day. This is the short list that earned a permanent spot in my Clau...
Jul 4 Articles 7 min read
Back in April I wrote about why GitWand exists: most Git clients show you a conflict and stop, and I wanted one that actually understood the structure of what it was looking at. That article left off at v1.6.3 — the pattern registry, the merge previe...
Jun 17 Tutorials 3 min read
We’ve all been there. You find an awesome library, you run npx expo install, you import it into your code, and you start your development server. You expect magic. Instead, your simulator turns blindingly red with an error that looks something li...
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Jun 17 Articles 1 min read
The days of monolithic, rigid web builds are dead. We plan and execute our builds completely based on current situation needs, focusing on adaptability over strict, outdated documentation. Whether you are an engineer or a product manager, managing cl...
Jun 17 Tutorials 4 min read
The first time you try to test a TanStack app the way the React Testing Library docs suggest, the test file gets bigger than the component. You spin up a memory router, instantiate a new QueryClient per test, wrap everything in QueryClientProvider an...
Jun 4 Articles 6 min read
This is a submission for the Gemma 4 Challenge: Write About Gemma 4https://dev.to/challenges/google-gemma-2026-05-06 Which Gemma 4 Model Should You Actually Use? I Tested All of them, building a Healthcare AI for African Patients Most model compari...
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