Hi there, I’m working on Weblate’s integration.
I do not plan to make it talk with YunoHost users, as it aim to be a platform for translators, I doubt we would like to create user accounts for every project contributors 
Please test it
Remember to carefully read how to configure a component in weblate: https://docs.weblate.org/en/weblate-2.16/admin/projects.html#component
Here is a proof it works well with github: https://github.com/YunoHost/yunohost/pull/378/commits/43dbf03ac8fd1c5ac599ca7b0089d5b17cbbd85b