On the subject of yt-dlp, I use it to get (timestamped) transcripts from YouTube, to shove into LLMs for summaries.

    ytsub() {
        yt-dlp \
            --write-sub \
            --write-auto-sub \
            --sub-lang "en.*" \
            --skip-download \
            "$1" && vtt2txt
    }

    ytsub [youtube_url]

Where vtt2txt is a python script — slightly too long to paste here — which strips out the subtitle formatting, leaving a (mostly) human readable transcript.