nvm can be used to manage Node.js versions and switch between them quickly. I don't use it much day to day, but I had a rough memory of it, so I searched and found I'd written about it in August 2024. Back then it was to solve the problem of "npm install -g always lacking permission" — I installed nvm, expecting to use it to manage nodejs and maintain directory permissions. But I didn't end up using it to manage nodejs; instead I managed directory permissions manually, adding the path `~/.npm-global` to npm config so that `npm install -g` installed packages to a different path, which solved the permission problem. `hexo` and `yarn` were involved too, and after the change they were both installed under the `~/.npm-global` directory.

It's Chinese New Year, and everyone is talking about DeepSeek. Ruirui wants to play "Who's the Spy" but can never round up enough people, so I built an AI-powered "Who's the Spy" game bot that calls an LLM to generate character descriptions and voting strategies — but I ran into problems like unstable model output and formatting errors. After tweaking the model and the prompts over and over, I finally got the basic functionality working, and the whole process was full of funny mistakes and challenges.

Notes on deploying a TSRPC server on the Baota panel, including configuring an Nginx reverse proxy and fixing the issue where the Node.js project fails to start. Modify the Nginx configuration file, add CORS-related settings, and comment out the conflicting port listening configuration to ensure the service runs properly.