vim-rails binary package in Ubuntu Focal arm64

 vim-rails provides several tools for Rails development with vim:
 .
  * only affects buffers of files inside Rails projects.
  * fills key variables like 'makeprg', 'path' with appropriate values for your
    application.
  * enhanced syntax highlighting for files in Rails projects.
  * interface to Rails' scripts/*
  * automated partial extraction
  * integration with project and dbext vim addons, present in the vim-scripts
    package.

Source package