Action Text is what i was looking for before DHH announce it.

2 hours before DHH announcing that the Rails team is working towards bringing Trix, the rich text editor from Basecamp into Rails applications by default as Action Text. I was googling simple way to use editor in my blog and i found this video that he showed quickly how to get started with Action Text by building a blog with a rich text area. This shows off some other things coming to Rails 6, like the default use of web-packer. Action Text hooks closely into Active Storage which was only new in Rails 5.2.

Take a look at the video and see what you think

Rails 6 really is shaping up to be a major release.
Besides Action Text, Basecamp have been cooking several other new frameworks in Basecamp 3 that we hope to extract.
On top of all the wonderful work coming from others in the community,
like the multi-db and parallel testing extractions that the team at GitHub are responsible for.
This is a great time to be in Rails!

Have you had a need for rich text and struggled to use something
that works well? Will this get you to install the edge version of Rails to try it out?

References

https://github.com/rails/actiontext

https://weblog.rubyonrails.org/2018/10/3/introducing-action-text-for-rails-6/