Developer Ditches VS Code for Custom 30MB Native IDE to Cut IPC Latency

A developer building V.E.L.O.C.I.T.Y.-OS, a bare-metal operating system project, has abandoned the VS Code extension model due to its high memory overhead, which can exceed 300MB at idle. The decision came after JSON-RPC serialization in the agent processing path was identified as a performance bottleneck consuming unnecessary CPU cycles. As a replacement, the developer built a standalone native IDE weighing just 30MB, paired with zero-allocation binary parsing using C# and Rust. Benchmarks show the new binary format reduced read latency from 846 nanoseconds with JSON to 61 nanoseconds, a roughly 92.7% improvement. This is the third installment in a 12-part series documenting the project's progression toward a fully self-contained, CPU cache-resident operating system.