Rsen enhanced the constraint system for the IrreducibleOSS/binius repository by enabling direct support for constant values within channel flush operations. By introducing the OracleOrConst enum and refactoring the Flush logic, Rsen removed the dependency on OracleId for constants, streamlining constraint construction and reducing boilerplate in the API. This work improved the expressiveness and maintainability of the system, addressing potential edge-case errors in constraint evaluation. The implementation leveraged Rust and focused on system design principles relevant to zero-knowledge proofs and constraint systems. The depth of the changes reflects a thoughtful approach to both usability and long-term code consistency.