But the truth is both simpler and harder: No PDF can save you. The handbook is a metaphor.
Given current global instability—supply chain issues, cyberattacks on utilities, and political unrest—the Lazarus methodology is more relevant than ever. However, some sections are dated.
This is considered the definitive "current" version, covering FPC (Free Pascal Compiler) necessities. A New Lazarus Handbook (Part 1) has been recently developed for version 4.0 and higher.