[sargun]

I love SQLite. It’s pluggable interfaces and concise C code make it enjoyable to use (and sometimes to debug - as long as you don’t have to go through the single file version!).

Unfortunately, I wish there were multiple implementations of it, and that the file format was documented and stable.

[ankitrgadiya]

The sqlite file format is documented and probably has the most insane backwards compatibility out there. The developers pledged to keep it backwards compatible until 2050. In fact Library of Congress has recognised it as one of the few data formats for long term archival.

https://sqlite.org/fileformat2.html https://sqlite.org/lts.html https://sqlite.org/locrsf.html