CommentEX is a elixir application that receives user-generated content and create data files to a Github repository. Its inspired on StaticMan.
It consist on a hight performace web service to handle the POST request from your forms and generate the data files to be included in your repository as a Pull Request. You can choose if the Pull Request are auto merged or if you prefer to moderate the user content.
You can deploy CommentEX on your infraestructure or use the public instance for free.