rainbow VS Clearance

In Ruby, this is possible using a gem like Colorize or Rainbow.

You can add methods to every object but again, usually not the best way. If you need this very often in a class / file and want to avoid a lot of repetition of calling a method on a utility class you can use Refinements to alter e.g. String for that class / file. example in Rainbow

Rainbow is a ruby gem for colorizing printed text on ANSI terminals. It provides a string presenter object, which adds several methods to your strings for wrapping them in ANSI escape codes. 669 stars by now

https://github.com/thoughtbot/clearance It is simple and good. You can also customize it easily.

Clearance has been better for most of my projects. Its got a cleaner implementation that Devise, and comes with a generator that will optionally dump all of the basic routes and views into the standard locations which you can then edit at will.

I tend to suggest Clearance for Rails apps that need a more focused toolset. It may not do everything that Devise does, but it definitely works well with Rails 7. https://rubygems.org/gems/clearance/versions/2.5.0

I've found a much simpler/cleaner authentication gem is Clearance. Devise does just about everything, but Clearance is more opinionated so out of the box it does more of what you normally want.

...because some folks prefer clearance to devise! :-D

Clearance is a Rails authentication with email & password. It is intended to be small, simple, and well-tested. It has opinionated defaults but is intended to be easy to override. 3,321 stars by now