Think more about how to handle failures on startup
add ability to create subfolders
extract subtitle *text* at selected timestamp and include it in posts
ok yeah i don't think ffmpeg is gonna be cooperative, what we should probably do is just extract the whole subtitle track as an srt, and then use the srtlib
crate to parse it, and just iterate…
extract subtitle *text* at selected timestamp and include it in posts
option to retry on error in oneshot mode