Show HN: PhenixCode – Open-source, self-hosted alternative to Copilot Chat

说明与用途

PhenixCode 是一个免费、本地化的代码助手，替代 GitHub Copilot Chat，开源且完全控制模型和数据。

问题

Need a code assistant that runs locally, free, with full control over models and data, avoiding cloud dependency and subscription costs of GitHub Copilot Chat.

结果

PhenixCode provides a free, local code assistant with full control over models and data, eliminating subscription costs and cloud data transfer.

工作流

• 1. Install PhenixCode on local machine.
• 2. Configure local models or provide API keys for external services.
• 3. Use Svelte + webview UI to interact with the assistant.
• 4. Leverage RAG architecture with HNSWLib for vector search and SQLite for metadata to retrieve relevant code snippets.

证据

I built PhenixCode as an open‑source alternative to GitHub Copilot Chat.

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I wanted a code assistant that runs on my hardware with full control over the models and data.

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GitHub Copilot is excellent but requires a subscription and sends your code to the cloud.

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PhenixCode lets you use local models (completely free) or plug in your own API keys.

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Tech stack: Pure C++ with RAG architecture (HNSWLib for vector search, SQLite for metadata). The UI is Svelte + webview.

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