Your code never leaves your machine. Your API bill is zero. Your assistant still works on a plane. ✈️ That's the pitch. Here's how to actually build it. 🤔 Why Go Offline in 2026? Three reasons pushed me (and a lot of other devs) toward local AI: 💰 Cost. If you're running coding sessions multiple times a day, API bills add up fast. A one-time hardware investment pays for itself in months. 🔒 Privacy. Some codebases — client work, proprietary algorithms, internal tools — should never touch someone else's server. ⚡ Resilience. Cloud APIs throttle, go down, and change pricing. A local model just runs. Gemma 4 finally makes this practical. Previous Gemma generations scored 6.6% on function-calling benchmarks — basically useless for agentic coding. Gemma 4 31B scores 86.4% on the same benchmark. 🤯 That's the jump that makes "local coding assistant" go from toy to tool .…