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NAMVO WEBSITE
Ideas, code, and
everyday moments.
Practical code, useful ideas, and lessons I’m learning.
Notes from the journey in this life
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Recent moments
Capturing the beauty of everyday life through my lens.
Southern Vietnam from a plane
Minion Scooter
Tu Duc Tomb - Hue
Tainan - Taiwan
Dong Van - Ha Giang
Flower bike - Ha Noi
Shifen Railway - Taiwan
Blue gradient sky
Reading room
Insightful articles, tutorials, and my coding journey.
LATEST BLOGS
From Heroku to Kamal: Taking Control of My Rails Deployment
I used to deploy my Rails application to Heroku. It was convenient: push the code, wait for the build, and let the platform handle the infrastructure. But eventually, I wanted more control over my server and a more cost-effective way to host my perso
2026-10-26 21:46:17 +0700
· 5 mins read
Software Engineer
Software Engineer
Ruby on Rails
Ruby on Rails
Include, Extend, Prepend in Rails: Understanding Ruby Modules
When I first started working with Rails, I saw include everywhere. Models included modules, controllers included concerns, and some classes used extend or prepend. At first, the differences seemed simple:include adds instance methods.extend adds clas
2026-10-14 20:29:07 +0700
· 6 mins read
Ruby on Rails
Ruby on Rails
JavaScript Microtask and Macrotask Queue
JavaScript interviews often include questions about asynchronous programming, as it's a fundamental concept in modern web development. One common challenge is understanding the intricate dance between Promises, timers, and the event loop. The Ch
Frontend
Frontend
Interview
Interview
2024-07-10 12:03:29 +0700
·
3 mins read
Custom Fullscreen Button: A Cross-Browser Solution
Fullscreen functionality is a common requirement in web development, especially with media elements like custom video player. In this blog post, I'll share my experience working with fullscreen APITL;DRNote: On iOS browsers, the element must be a vid
Frontend
Frontend
2024-07-10 21:59:43 +0700
·
2 mins read
Docker compose basics: Essential commands
Docker has revolutionized the way we develop, package, and deploy applications. It allows us to containerize our applications, providing a consistent and reproducible environment across different platforms. Docker Compose takes it a step further by e
Software Engineer
Software Engineer
Docker
Docker
2024-09-22 18:29:37 +0700
·
3 mins read
How to customize YJIT in the Rails app
In this post, we'll dive into what YJIT is, how to enable it in your Rails app, and how to monitor and configure it for optimal performance.What is YJIT?YJIT is a lightweight Just-In-Time (JIT) compiler introduced in Ruby to speed up method execution
Software Engineer
Software Engineer
Ruby on Rails
Ruby on Rails
2025-02-01 17:28:04 +0700
·
3 mins read
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