Mobile Hackathon and Thoughts on Technology
Sharing my experience at Google Developer Group's Mobile Hackathon, lessons from an unsuccessful competition, the process of developing an exam practice app with Firebase, and observations about technology trends like AI, chatbots, and AR from a developer's perspective.

Related Posts
Discover more content you might enjoy

1DevTool: The Developer Cockpit I Built Because I Was Drowning in Windows
I was running Claude Code, Codex, and Gemini CLI in three different terminals, plus VS Code, Chrome, Postman, and TablePlus — just to ship one feature. So I built 1DevTool: one window per project, every AI agent in one place, everything persists.

Server Compass: Why I Built a Desktop App to Turn Any $5 VPS Into My Own PaaS
I was tired of paying $20+/month for Vercel and Railway, but also tired of self-hosted panels eating 2GB of RAM on my $5 VPS. So I built Server Compass — a desktop app that connects to any VPS over SSH and gives you the full power of a managed PaaS, with zero server overhead and one-time pricing.

Accidentally Building a Blogging Platform
I hadn't written blog posts for a long time and realized I was too dependent on AI. To rebuild my writing habit and think more clearly, I decided to build a writing platform: write.rocks.

Vibe Coding - Rebuilding My Blog from Scratch and Rebranding to khoa.blog
Detailed walkthrough of rebuilding a blog from scratch with vibe coding, from data migration to implementing new features, helping readers understand the personal blog development process.

Day 15 - Profitable MVP in 30 Days - How to Hire Freelancers on Upwork
Day 15 of the profitable MVP challenge, sharing experience hiring freelancers on Upwork. The post explains why I chose this platform, how to describe features clearly for freelancers, the job posting process, evaluating candidates, and setting appropriate project timelines.

FIRE and Fat FIRE: Financial Independence, Retire Early
An introduction to two popular financial concepts: FIRE (Financial Independence, Retire Early) and Fat FIRE. I explain the formula for applying the 4% rule to achieve financial independence, analyze risks like inflation, and compare regular FIRE with Fat FIRE - the upgraded version allowing more comfortable spending during early retirement.