[$] Format-specific compression with OpenZL

Lossless data compression is an important tool for reducing the storage
requirements of the world’s ever-growing data sets. Yann Collet developed
the LZ4
algorithm and designed the Zstandard (or Zstd)
algorithm; he came to the 2025
Open Source Summit Japan in Tokyo to talk about where data compression
goes from here. It turns out that we have reached a point where
general-purpose algorithms are only going to provide limited improvement;
for significant increases in compression, while keeping computation costs
within reason for data-center use, turning to format-specific techniques
will be needed.