Frank Zheng fkztw

name	explain-diff-html
description	Use when the user asks for a rich explanation of a code change, diff, branch, or PR. Produces HTML output.

Explain Diff

Please make me a rich, interactive explanation of the specified code change.

It should have these sections:

LLM Wiki

A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.

The core idea

Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.

Using Gmail SMTP with Cloudflare Email Routing: Step-by-Step Guide

Learn how to send emails through Gmail SMTP with Cloudflare Email Routing in this comprehensive guide.

Step 1: Enable 2-Factor Authentication

To proceed with this method, ensure that you have enabled two-factor authentication for your Google account. If you haven't done so already, you can follow the link to set it up → Enable 2FA in your Google account.

Step 2: Create an App Password for Mail

Open GitHub repo with VSCode Remote Repository

How to use

Install VS Code extension: GitHub Repositories in VSCode before enabling this userscript.
press , (comma key) on GitHub to open code in VSCode.

Configuration

欲取得推薦的 URL: https://code.tutsplus.com/tutorials/developing-google-chrome-extensions--net-33076 (Pocket ID: 541935239)

$ curl -H "Content-Type: application/json" --data @content.data https://getpocket.com/v3/getSuggestedItems

Fixing Selenium Webdriver Compatibility Errors in Heroku

The Problem

If you are using the chromedriver and Google Chrome Heroku buildpacks together, you may run into a driver compatibility issue with the version of chrome installed.

Example error:

Selenium::WebDriver::Error::SessionNotCreatedError (session not created: This version of ChromeDriver only supports Chrome version 83):

如何使用python3逃逸沙箱，获得进程上下文权限提升

最近突发奇想，想对所掌握的python知识进行总结一下，目前其实还停留在python层面如何使用，还没有深入到虚拟机部分，如果下面有哪些错误，欢迎指出。

背景

OJ(Online judge, 在线编程测评提交代码到后台运行检查)网站一般都允许各种各样的代码提交，其中很有可能包含python3，于是决定尝试通过python3的代码执行，进行沙箱逃逸，以及绕过各种限制。

我随便找了一个OJ网站，这个站点的python3有如下限制

Today (April 16th 2019 at noon) the first major clues to discover key #1 was set to be released in a few cities. A QR code with the words 'orbital' were found at these locations and looked like this: (https://imgur.com/a/6rNmz7T). If you read the QR code with your phone you will be directed to this url: https://satoshistreasure.xyz/k1

At this URL you are prompted to input a passphrase to decrypt the first shard. An obvious first guess was to try the word 'orbital' from the QR code. Not suprisingly this worked! This reveals a congratulations page and presents the first key shard:

ST-0001-a36e904f9431ff6b18079881a20af2b3403b86b4a6bace5f3a6a47e945b95cce937c415bedaad6c86bb86b59f0b1d137442537a8.

Now, we were supposed to wait until April 17th to get clues from the other cities for keys #2 and #3 but that wouldn't stop me from digging around with all the new information we had. All that time "playing" notpron (http://notpron.org/notpron/) years ago was going to help me here.

The first thing I noticed was

	- name: 'gcr.io/cloud-builders/git'
	secretEnv: ['SSH_KEY']
	entrypoint: 'bash'
	args:
	- -c
	- \|
	echo "$$SSH_KEY" >> /root/.ssh/id_rsa
	chmod 400 /root/.ssh/id_rsa
	volumes:
	- name: 'ssh'

	# Julia 1.0.3
	buzzwords = (
	"自經區", "自貿區",
	"摩天輪", "愛情摩天輪", "愛情產業鏈",
	"發大財", "愛河的水甘甘", "選總統",
	"迪士尼",
	"F1", "F1賽車場", "F1 賽車場",
	"賭馬", "賽馬",
	"九二共識", "一中各表", "一國兩制", "兩岸統一",
	)