Binary package “libflatbuffers-dev” in ubuntu focal

efficient cross platform serialization library - development files

 FlatBuffers is an efficient cross platform serialization library for C++, C#,
 C, Go, Java, JavaScript, TypeScript, PHP, and Python. It was originally
 created at Google for game development and other performance-critical
 applications.
 .
 This package contains the development headers and static libraries needed for
 writing C++ applications.