(note to self)
exe/serveto generate (and watch for changes then recompile)
exe/new my great postto create a draft file.
exe/publish _drafts/my-great-post.mdto move that file into the
_postsdirectory and add the current timestamp
number_of_bytes-- actually count the bytes of the audio file, e.g. 4000000
length_as_text-- e.g. "07:05"
custom_artif an episode should have special art, link it here