Ask HN: Resources for learning Wordpress for people with technical backgrounds

I've recently begun to tinker around with Wordpress. I have a strong technical background but when looking in to the documentation it seems to fall mostly in the camp of installation support and then support for "I've never made a website before" users, with a ton of content for the later. Wondering if folks here have recommendations for resources that assume a strong technical foundation in order to gain a better overall understanding of WP as a platform.