Valdr - Valkey/Redis in safe Rust, passes >99% of Valkey test suite

Valdr is a memory-safe, Rust-based reimplementation of Valkey/Redis that passes over 99% of the official Valkey test suite, offering developers a drop-in replacement with enhanced safety guarantees. It targets engineers running Redis-compatible databases who want to eliminate memory safety bugs without sacrificing performance or compatibility. The project is interesting because it demonstrates that a complex, high-performance database can be rebuilt in safe Rust while maintaining near-perfect compatibility with an existing ecosystem.