How to Setup a Local Coding Agent on macOS

A technical guide details how to set up a local coding agent on macOS using the Gemma 4 model with Multi-Token Prediction (MTP). The author demonstrates how to optimize performance on Apple Silicon hardware to achieve usable token generation speeds.
Why it matters
Local AI deployment is becoming increasingly accessible for developers, reducing reliance on cloud-based APIs and improving privacy for coding tasks.
I'd had my internet fail a few times recently leaving me stranded without a coding agent, and so when I saw the "Gemma 4 now runs 2x faster with MTP" Multi-Token Prediction update for Gemma 4 I decided to have a go at getting it running.
The content is a technical tutorial and personal project report with no political or social bias.
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