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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.
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Minion Scooter
Dasara Waterfall - Bao Loc
Japanese Bridge - Hoi An
Ancient Town - Hoi An
Quy Nhon
Handicraft shop in Chiang Mai
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
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
Rails 7.2+: How to show all model attributes in Rails Console
With the release of Rails 7.2, a new change was introduced to the way ActiveRecord models are inspected in the Rails console. Prior to this version, calling inspect on an ActiveRecord model instance would display all the model's attributes by default...
Ruby on Rails
Ruby on Rails
2025-04-22 11:12:40 +0700
·
2 mins read
How to Manage and Renew SSL Certificates Using Docker Compose
Securing your website with SSL certificates is essential to protect data transmitted between the server and client. Managing and renewing SSL certificates can be a cumbersome task, but Docker simplifies this process. In this blog post, we will demons...
Docker
Docker
Software Engineer
Software Engineer
2024-08-15 21:06:08 +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
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