im using yt-dlp with crontab and archive i.e. (execerpt from script):

mkdir -p /share/_ANIME/_ANIME/Z_Download/Downloaded/yt_channels/DUST/ && 
cd /share/_ANIME/_ANIME/Z_Download/Downloaded/yt_channels/DUST/ &&
yt-dlp -N 4 --write-auto-sub --sub-lang "en,pl" --embed-metadata -i --restrict-filenames --add-metadata --embed-thumbnail --embed-subs --download-archive /exploit/logs/youtube_channels/DUST.log "https://www.youtube.com/watch?v=T08deT2tnf0&list=PL2X2odndvaIe-Fd-XVtE4LuRrwi0W1E_s&pp=iAQB"

unplug it’s internal DOM (disk on memory - look it up)

then boot installation from USB stick of desired OS - you might have problem with fan control (old docus: https://www.cyrius.com/debian/kirkwood/qnap/ts-41x/tips/)

gmail with separate account than primary one

always put limits on containers !

i.e.

services:
    qbittorrent:
        container_name: qbittorrent
        cpus: 1
        mem_limit: 1g
        environment: