Comment by mike-cardwell

This works for me:

    FROM python:3-slim
    RUN python3 -m pip --no-cache-dir install 'yt-dlp[default]'
    RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -q -y ffmpeg curl unzip \
     && curl -fsSL https://deno.land/install.sh -o /tmp/deno.sh \
     && sh /tmp/deno.sh -y \
     && mv /root/.deno/bin/deno /usr/local/bin/ \
     && rm --force --recursive /var/lib/apt/lists/* /tmp/* /var/tmp/*
    ENTRYPOINT ["yt-dlp"]