Provision curl_cffi so yt-dlp's Reddit workaround runs as designed - #27
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yt-dlp's merged fix for Reddit's anonymous-API removal bootstraps its session with browser impersonation, which silently degrades without curl_cffi installed (yt-dlp/yt-dlp#16877): scrapes then fail with 429s whenever Reddit's rolling enforcement tightens. Both images now install it and strip the build-only pip afterward. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DL3md3a3RoeRNStaDv1PDf
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Problem
Reddit is removing anonymous JSON API access; when its rolling enforcement bites, scrapes fail with
HTTP Error 429(observed twice in production logs on 2026-07-24/25, where a non-video link then drew a group error reply because the scrape failed before the bot could classify the link). yt-dlp's merged workaround (yt-dlp/yt-dlp#16839) bootstraps a session using browser impersonation, and its author notes the bootstrap 403s without that capability (yt-dlp/yt-dlp#16877). Both our images lack the impersonation dependency the workaround requires, so by upstream's account the bot runs it degraded.Fix
Install
curl_cffiin both images, viapython3-pipwith--no-cache-dir, strippingpython3-pipagain after use. In the built imagescurl_cffiimports, yt-dlp reports impersonation targets available, and pip is absent at runtime.Not verified empirically against the failure itself: enforcement isn't currently biting, so a with/without comparison cannot discriminate right now. This ships on the upstream maintainers' documented requirement; if 429 windows recur with this in place, the investigation reopens.