Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-mirrors/jellyfin/blame/commit/8489febcc72ac6ddaf23c45fdd4d575d2a07bbd8/Dockerfile
You should set ROOT_URL correctly, otherwise the web may not work correctly.
ARG DOTNET_VERSION = 2
# Download ffmpeg first to allow quicker rebuild of other layers
FROM alpine as ffmpeg
ARG FFMPEG_URL = https://www.johnvansickle.com/ffmpeg/old-releases/ffmpeg-4.0.3-64bit-static.tar.xz
RUN wget ${ FFMPEG_URL } -O - | tar Jxf - \
&& mkdir ffmpeg-bin \
&& mv ffmpeg*/ffmpeg ffmpeg-bin \
&& mv ffmpeg*/ffprobe ffmpeg-bin
FROM microsoft/dotnet:${DOTNET_VERSION}-sdk as builder
WORKDIR /repo
COPY . .
RUN export DOTNET_CLI_TELEMETRY_OPTOUT = 1 \
&& dotnet clean \
&& dotnet publish --configuration release --output /jellyfin
FROM microsoft/dotnet:${DOTNET_VERSION}-runtime
COPY --from= builder /jellyfin /jellyfin
COPY --from= ffmpeg /ffmpeg-bin/* /usr/bin/
EXPOSE 8096
VOLUME /config /media
RUN apt update \
&& apt install -y libfontconfig1 # needed for Skia
ENTRYPOINT dotnet /jellyfin/jellyfin.dll -programdata /config