Add platform to ruby application

Check connection to rubygems service

Install ffi gem on MacOS Big Sur

An error occurred while installing ffi

Firebase Cloud Messaging invalid argument error when sending to more than 1000 devices

via Ruby FCM gem

Setting up ruby on rails on Ubuntu 18.04

2019 updated

Changing the passenger max process

Adjust to balance the performance vs. resources

Install new version of Ruby via rbenv

For mac and homebrew & For ubuntu

Integrate Google Sign-In

Using Google OAuth2 with Omniauth

Handling weekdays, weekends and public holidays

By using various built-in methods in Ruby and Rails

Define .ruby-version for all your app

To prevent wrong ruby version and gems being used in a multi-apps server

False warning for Style/AndOr cop when used as chaining operation

"and" and "&&" does not always give equivalent result

Use rails 5.1 encrypted secrets

To protect production credentials even if they are committed into git

Use .gitignore to prevent committing unwanted files

Logs, temporary files, credentials are not supposed to be committed into git repository

10 Common Rubocop Catches

Rubocop is a powerful static code analysis tool for Ruby Language

Reconstruct query string from request

For string compare or generate signature hash