+ On the compressor side, Zstd's compression levels map to several internal
+ strategies. In environments where the higher compression levels aren't used,
+ it is possible to exclude all but the fastest strategy with
+ `ZSTD_LIB_EXCLUDE_COMPRESSORS_DFAST_AND_UP=1`. (Note that this will change
+ the behavior of the default compression level.) Or if you want to retain the
+ default compressor as well, you can set
+ `ZSTD_LIB_EXCLUDE_COMPRESSORS_GREEDY_AND_UP=1`, at the cost of an additional
+ ~20KB or so.
+