razhangwei

• Use Markdown All in One extension so that the most common editing features, like bold, indent, can be greatly improved.
• Turn on its auto open preview at side window.

razhangwei

Awesome — we’ll cover the .github/ folder from a reader’s POV: what it is, how it changes what you see on GitHub, and how to quickly make sense of it in any repo.

What the .github/ folder is • Purpose: holds GitHub-specific config (templates, automation, repo metadata). It doesn’t ship in packages or affect runtime code. • Scope: affects issues, PRs, Discussions, security disclosures, CI (GitHub Actions), and repo presentation.

How it changes your experience • Issues/PRs: you’ll see structured forms or prefilled text when opening issues/PRs. • Automation: PRs may auto-label, auto-assign reviewers, run checks/tests, or block merges. • Docs & policies: contribution rules, code of conduct, and security reporting paths show up in dedicated UI entries.

razhangwei

Great question 👍. A pyproject.toml file looks intimidating at first, but it’s just a TOML-formatted config. The trick is to know the sections that matter.

⸻

How to Read a pyproject.toml

1. Build system

[build-system] requires = ["setuptools>=61.0"]

razhangwei

Category	File / Directory	Purpose
Configuration & Build	.gitignore	Specifies files/folders Git should ignore.
Configuration & Build	.pre-commit-config.yaml	Defines linting/formatting hooks for pre-commit.
Configuration & Build	.pylintrc	Config file for pylint (style/linting rules).
Configuration & Build	tox.ini	Automates testing across multiple environments.
Configuration & Build	pyproject.toml	Defines packaging, dependencies, and build system.
Configuration & Build	Dockerfile	Provides containerized build/runti

razhangwei

• process isolation
• For Linux and WSL.

razhangwei

• Async, cloud-based AI agent.

Concepts:

• environment

vs Claude Code

razhangwei

#!/bin/bash

# === Cache Cleanup Script ===
# Cleans caches for Homebrew, UV, Hugging Face, and NPM
# Usage: bash cleanup.sh [options]
#   Options:
#     -a, --all       Clean all caches
#     -b, --brew      Clean Homebrew cache
#     -u, --uv        Clean UV cache
#     -h, --huggingface Clean Hugging Face cache

razhangwei

How can I find the model implementation for a particular model?

• Usually it's avaiable from transformers/models/xxxx, e.g., for qwen2_5_vl

razhangwei

from typing import List, Tuple, Optional, Union, Callable
import numpy as np

# Define a Tensor type for clarity in this pseudocode
Tensor = np.ndarray  # In real implementation, this would be a framework-specific tensor type

# Qwen2.5-VL Vision Encoder Pseudocode

class Qwen25VisionEncoder:
    def __init__(self, 

razhangwei

Personal Website Tech Stack Cheatsheet

Core Technologies

Technology	Version	Purpose
Next.js	14.2.0	React framework with file-based routing, static site generation
React	18.2.0	UI library for component-based development
TypeScript	5.3.3	Static type-checking for JavaScript
TailwindCSS	3.4.1	Utility-first CSS framework