Paper Title
MetaRun: A Unified Execution Runtime for Multi-Language Interoperability

Abstract
MetaRun brings a new way of cross-language interoperability through the removal of Foreign Function Interfaces (FFIs), Virtual Machines (VMs), or Intermediate Representations (IRs). Instead, it employs a Global Symbol Registry (GSR) to handle exported functions and variables so that it can execute across different languages without overhead. To make integration straightforward, MetaRun introduces a new syntax and .mlx file format, allowing direct cross-language calls to functions with no need for manual bindings. This provides excellent efficiency, with direct function lookup, zero-copy data sharing, and adaptive memory management used to optimize execution without compromising on memory safety through type-safe access, sandboxing, and automatic leak detection. With its light-weight architecture, MetaRun is well-suited for high-performance computing, artificial intelligence, game development, and real-time applications, providing a more effective approach than conventional cross-language execution models. Keywords - Cross-Language Interoperability, MetaRun, Foreign Function Interface (FFI), Virtual Machine (VM), Intermediate Representation (IR), Global Symbol Registry (GSR), Multi-Language Execution, Zero-Copy Data Sharing, Adaptive Memory Management, High-Performance Computing, .mlx File Format, Real-Time Systems, Sandbox Execution.