A generic LRU (Least Recently Used) cache implementation originally from Google. It supports setting a maximum number of entries, an eviction callback, and provides standard cache operations (Add, Get, Remove). The implementation uses a doubly-linked list and a hash map for O(1) operations. It is self-contained, has no external dependencies, and can be extracted into any Go project needing a simple LRU cache.

A generic set data structure using Go's built-in map. It provides Add, Remove, IsMember, Clone, and Count methods. The implementation is straightforward but demonstrates a clean use of Go generics (comparable type constraint) to create a reusable collection. It is self-contained and can be extracted as a utility library for any Go project requiring a set.

A set of generic HTTP handler wrappers that allow binding typed arguments to handler functions, reducing boilerplate when passing dependencies to HTTP handlers. It defines Handler, Handler2, Handler3 types with one, two, or three generic parameters, and corresponding Handle, Handle2, Handle3 functions. This pattern enables clean dependency injection for HTTP handlers without global state. It is self-contained and can be reused in any Go web server.