[Suggestion] Read a bridge list from file.

[phantomcraft]

Easy to implement:

if [ "$(command -v obfs4proxy)" ]; then
    echo "ClientTransportPlugin obfs2,obfs3,obfs4,scramblesuit exec $(command -v obfs4proxy)" >> "$TORCONFIGFILE"
fi

cat --squeeze-blank /path/to/bridge_list | shuf -n 20 | while read line;
    do
      echo "Bridge ${line}" >> "$TORCONFIGFILE"
    done
echo "UseBridges 1" >> "$TORCONFIGFILE"

The bridge central (https://bridges.torproject.org) is only providing "normal" (vanilla) and obfs4 bridges and obfs4proxy is avaliable for installing on Debian:

https://packages.debian.org/bullseye/obfs4proxy

https://packages.debian.org/bookworm/obfs4proxy