A feature of jinja that I just discovered is including sub templates. Here is an example from the docs.
``` html
{% include 'header.html' %}
Body goes here.
{% include 'footer.html' %}
```
And inside of my thoughts project I used it to render posts.
``` html
{% for post in posts.__root__ %}
{% include 'post_item.html' %}
{% endfor %}
```
> note that post_item.html automatically inherits the post variable.