Zephyr memory usage is of interest for those who want to use it in constrained hardware, limited to a few hundred kilobytes. In this talk, audience will be taken into what Zephyr currently does to keep its footprint down – such as compiler and linker options, as well as explore different approaches that can be used in the future; for example, a look into Zephyr current APIs (Application Programming Interfaces), based on function pointers, and how a "static dispatching" mechanism could help the linker to shave some dead code and reduce Zephyr's memory usage further.