I contributed in a few open-source projects during my career, however, I’m proud of this one.
I’ve written this Terraform provider while working at Babbel, and we open-sourced it. Moreover, it got listed at the official Terraform community providers page.
The full announcement and the article about why we’ve done this and whether it was difficult, you can find at Babbel’s blog: https://bytes.babbel.com/en/articles/2019-06-13-open-source-terraform-provider-for-codeclimate.html