How to add bootstrap 5 to an existing Rails 7 app

I tried to install bootstrap 5 in existing Rails 7 application. The keyword "existing" is very important because for a new application you can try following.

$rails new app-name -j esbuild --css cssbundling-rails (Note: Do NOT miss -j flag to install JavaScript first. In one Youtube video, it was skipped, however it did NOT work for me for a test app I tried to install. Not sure why.)

How to set up Ubuntu 20.04 laptop

Recently, I could not boot into my laptop because the laptop ran out of space. No attempt to resize sda was successful. Since the disk was encrypted, I could not even access my data files.

I had to wipe out my current installation of Ubuntu 18.10 and install Ubuntu 20.04

Here are the steps I had to take to get the laptop ready.

0. Create Ubuntu iso image CD and install Ubuntu 20.04 onto laptop.

1. Install Mullvad VPN client

2. Customize Firefox browser

Rails and environment variables - Lesson Learned 5

I was trying  to send emails from my Rails app and I was NOT getting any success.

As per Rails documentation, I did everything I was supposed to do.

$rails generate mailer UserMailer

Then I created method inside UserMailer class /app/mailers/user_mailer.rb and built the email templates in folder /app/views/user_mailer folder.

Then I added code to invoke the user mailer with following code.