@trufflesuite/bigint-buffer is a utility package for converting between JavaScript BigInt values and Buffer objects. This package facilitates the seamless integration of large integer arithmetic, represented by BigInt, with byte-oriented operations using Node.js Buffers, crucial for cryptography, data serialization, and working with Ethereum (and similar technologies) where large numbers are common. It offers functions for encoding and decoding BigInt values to and from Buffer representations, catering to various needs within the Truffle Suite and beyond.