Zig's comptime feature is intentionally restrictive, focusing on compile-time evaluation without allowing host leakage, dynamic code generation, or custom syntax. It emphasizes safety and hermeticity, sacrificing some flexibility found in other languages to maintain clarity and ease of understanding. The article discusses the limitations of Zig's comptime capabilities compared to other programming languages.

The article discusses the use of metaprogramming in the Zig programming language, particularly focusing on parsing CSS into structured types. It explains the implementation details of a CSS parser that converts simplified CSS syntax into Zig data structures, including the use of reflection and helper functions for parsing rules and properties. The author also shares links to a live implementation video and the source code on GitHub.