libnginx-mod-http-brotli-filter 1.0.0~rc-3 (armhf binary) in ubuntu mantic

 Brotli is a generic-purpose lossless compression algorithm that compresses
 data using a combination of a modern variant of the LZ77 algorithm, Huffman
 coding and 2nd order context modeling, with a compression ratio comparable
 to the best currently available general-purpose compression methods. It is
 similar in speed with deflate but offers more dense compression.
 .
 ngx_brotli filter module - used to compress responses on-the-fly