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Headlines · 2
- devvm launches project-scoped VM sandboxes for coding agents
devvm is an MIT-licensed, open-source tool that creates an isolated virtual machine for each project and configures the toolchain its files require. Developers can inspect, confirm, or customize a new VM before devvm opens a shell in it, where Claude Code, Codex, or opencode can run. The documentation also describes network tiers, local credential proxying, custom layers, automatic port forwarding, and support for macOS and Linux.
Hacker News 首页（100+ 分） · 🔥 0 - A practical guide to SFT and LoRA with Qwen3-0.6B-Base
The Juejin AI tutorial explains how supervised fine-tuning adapts a base model to follow instructions, covering loss masking, Alpaca and ShareGPT data formats, and approaches such as Self-Instruct and model distillation. It demonstrates LoRA-based fine-tuning of Qwen3-0.6B-Base with TRL and PEFT, including code, configuration choices, and guidance on matching training and inference chat templates. The author reports that a 1,000-sample run on a 16 GB M2 Mac took about 44 minutes and changed the model from repeating questions into answering them completely.
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