[fnordpiglet]

I do this to make extraordinarily small UDP packets for a low latency system. I record the raw payload then build a dictionary for the data, then share it on both sides. It reduces the packet overhead by removing the dictionary and it does a much better job than other approaches.

[muragekibicho]

I saw that zstd and brotli both suppport creating custom dictionaries but I couldn't find any tutorials showing how to do this. Perhaps you could share code?