Looking for a simple blog system

Hi everyone,

Do you guys know of a simple blog system available for download using CI 3? A tutorial on how to build one could also be good. Something with the following functionality is good enough:

- Creating/editing/deleting a post
- Manually adding users from admin panel is good (no need for a front end registration form)
- SQL DB preferably
- Something easy to integrate with existing theme
- Categories
- Tags
- SEO META information if possible

That's about it,

Thanks for any help!