Local LLM User Highlights "Harness Matters" for Performance, Praises `codex cli` over `pi` and `opencode`

Core summary

One sentence to understand this update

A LocalLLaMA user shared their experience, emphasizing that the chosen "harness" (tooling/environment) significantly impacts local LLM performance, specifically finding `codex cli` superior to `pi` and `opencode` for running models like Qwen 3.8 Flash Next.

Impact & opportunity

What this could mean

Builders should experiment with different LLM inference frameworks and tooling (`harness`) for optimal local performance, as the choice can significantly affect speed and usability.