A Library Approach to Constant Template Parameters

A comprehensive exploration of implementing a library solution for extending constant template parameters in C++26 using reflection. The author demonstrates how to create a `ctp::Param<T>` wrapper that enables non-structural types like `std::string`, `std::vector`, and `std::variant` to be used as template parameters through serialization and deserialization techniques. The solution leverages C++26 reflection features including `std::meta::info`, `std::meta::substitute`, and various reflection utilities to achieve template-argument-equivalence while working around limitations like non-transient constexpr allocation. The library provides customization points for user-defined types and handles complex cases like string literals and reference types.