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Nam Vo Website
I developed this website to
share my knowledge and satisfy my coding passion
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Moments Captured
Recent moments
Capturing the beauty of everyday life through my lens.
Red Sand Dune 1 - Mui Ne
Tay Ninh Holy See
Mui Dien - Phu Yen
Fallen Sky
Quy Nhon
Mekong Delta
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
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
Solving the "must appear in the GROUP BY clause" Error in Rails and PostgreSQL
This blog will give an example of how to resolve this common error when using group_by in Active Record1. Example problemFirst, take a look at this SQL problem. Imagine you're working on a booking application where users can have multiple sessions. Y...
Software Engineer
Software Engineer
Ruby on Rails
Ruby on Rails
2024-07-10 23:00:10 +0700
·
3 mins read
How Google achieves seamless SSO across multiple domains like Gmail and Youtube?
Have you ever wondered how logging into Gmail can automatically sign you into YouTube, Google Drive, and all other Google services? This behind-the-scenes technique is called Single Sign-On (SSO). In this blog, I will show you some techniques that Go...
Software Engineer
Software Engineer
2024-10-13 18:14:25 +0700
·
2 mins read
Interpreted vs Compiled Programming Languages
Programming languages serve as powerful tools for developers to create software applications and bring their ideas to life. Behind the scenes, these languages are executed by either compiling or interpreting processes. In this blog, we will explore t...
Software Engineer
Software Engineer
2024-07-10 17:07:38 +0700
·
4 mins read
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