YouTube increasingly demands a Proof-of-Origin token (or shows 'confirm you're not a bot').
Instead of manual cookies, run the bgutil POT provider as a sidecar that mints tokens on demand:
- compose: bgutil-pot service (brainicism/bgutil-ytdlp-pot-provider:1.3.1, port 4416, init)
- requirements: bgutil-ytdlp-pot-provider==1.3.1 plugin (version pinned to the image)
- config: DOWNLOAD_POT_BASE_URL (http://bgutil-pot:4416) + DOWNLOAD_PLAYER_CLIENTS
(web_safari,web,tv — POT-capable; the default android_vr client never requests a token)
- formats.build_ydl_opts wires extractor_args youtube:player_client + youtubepot-bgutilhttp:base_url
Verified: the sidecar mints a valid PO token (BotGuard challenge solved) and yt-dlp fetches it
from the provider. NOTE: end-to-end download couldn't be confirmed here because the test IP got
hard-flagged by YouTube from heavy testing (~16 GB + dozens of extractions) — a hard abuse block
needs cooldown/cookies, which POT doesn't lift; POT bypasses the normal soft bot-check.
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