I tried a Claude Code alternative that's local, open source, and completely free - how it works

I was curious if Block's Goose agent, paired with Ollama and the Qwen3-coder model, could really replace Claude Code. Here's how I got started.
IEEE

High-efficiency CNTFET-based Inverter and Pass Transistor Design for Hamming Code Encoder and Decoder for Fault-Tolerant Data Transmission

Abstract: To create error-free digital data transfer, this investigation outlines the design of a Hamming code encoder and decoder circuit that combines inverter-based pass transistor logic and CNTFET ...