Yes, what this means in practice is that it's easy to customize common aspects of your site (such as how images are displayed). I found this to be very easy us

Yes, what this means in practice is that it's easy to customize common aspects of your site (such as how images are displayed). I found this to be very easy using Markdown+pandoc. I turned image tags containing youtube links to thumbnails with video tag and alt text, hooked up image tags to local video files to ffmpeg to optimize and resize videos to then do the same, etc in a few lines of code.