Lularible

An open-source book on storage technology and file systems. From knot records to Flash physics, from FAT to LittleFS — complete with KnotFS, a teaching-grade log-structured embedded file system (~1770 lines C).

A comprehensive open-source book on the Precision Time Protocol (IEEE 1588/gPTP). From thought experiments to protocol internals, LinuxPTP source code analysis, and a hands-on ptp-lite implementation (~1000 lines C). A complete guide from theory to running code.

From sand to chip to system — a panorama of computing for automotive embedded engineers. 33 chapters covering computation theory, semiconductor physics, processor architecture, on-chip/off-chip communication, AUTOSAR software, UDS/HSM/OTA, and engineering philosophy.