As you may have noticed, this package has not been updated for some time. I'm sorry, but unfortunately I'm not able to continue to maintain it, so I'm looking for someone who would like to take it over and maintain it. If you are interested, please contact me at wikiki@protonmail.com to discuss how to proceed.
Bulma's extension to display checkbox as a toggle button (find all my bulma's extensions here)
You can find the Documentation and a demo here