OP here. I'm pretty cavalier about which Markdown features I use. I employ them differently in various contexts - in plain Markdown files and on my blog, for in

OP here. I'm pretty cavalier about which Markdown features I use. I employ them differently in various contexts - in plain Markdown files and on my blog, for instance. But primarily, I treat them as plaintext files. If I needed to remove frontmatter at some point, it would be a simple script. For any feature specific to a particular Markdown flavor, preprocessing, or system - I expect it to work only as plain text elsewhere. Also, thanks for sharing about TSMU! I was thinking about similar issues—for example, a photo can simultaneously be "from 2022," "from a conference," and "emotionally important." This doesn't work well with typical nested filesystems, where we need to decide on a single folder hierarchy rather than allowing us to filter based on need (as we can in SQL).