Very opinionated extension to the Zig style guide.

Top-to-bottom source file hierarchy

File Group	Sorting Order	Letter Case
Directory	Descending alphabetically	kebab-case
Namespace file	Descending alphabetically	snake_case
Struct file	Descending alphabetically	TitleCase

Top-to-bottom file container layout

For imports, aliases, and namespaces first list std, then modules, then files.

Item Group	Sorting Order	Letter Case
Imports	Ascending by length	Original case
Namespaces	Ascending by length	Original case
Global variables	Ascending by length	SCREAMING_SNAKE_CASE
Global constants	Ascending by length	SCREAMING_SNAKE_CASE
Type aliases	Ascending by length	TitleCase
Error sets	Descending by length	TitleCase
Enums	Descending by length	TitleCase
Unions	Descending by length	TitleCase
Structs	Descending by length	TitleCase
Error set values	Ascending by length	TitleCase
Enum values	Descending by length	TitleCase
Union enum fields	Descending by length	TitleCase
Union fields	Descending by length	snake_case
Struct fields	Descending by length	snake_case
Init/deinit methods	Ascending by length	camelCase
Other methods	Descending by length	camelCase
Utility functions	Descending by length	camelCase
Test declarations	Original order	snake_case