geoffreylitt

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:

w3cj

C# for TypeScript Developers

Setup

• Set up your local environment
  • Download / Install .NET
• C# Dev Kit for VSCode

Learning Plan

TheLastProject

import os
import sys

import requests

BASE_URL = "https://api.cleanapk.org/v2/"

for package_id in sys.argv[1:]:
    app_details = requests.get(BASE_URL + "apps", params={
      'action': 'search',

Impact123

Proxmox VE tips

Just a somewhat chaotic list of Proxmox VE related tips/notes.

Please note that unless you see a shebang (#!/...) these code blocks are usually meant to be copy & pasted directly into the shell. Some of the steps will not work if you run part of them in a script and copy paste other ones as they rely on variables set before.
The { and } surrounding some scripts are meant to avoid cluttering your shell history with individual commands, etc. You can ignore them if you manually copy paste the individual commands.

Table of contents

• Proxmox VE tips
• Table of contents

morkev

#!/bin/bash

# ==============================================================================
# KEYCHRON LINUX FIX FOR HID DEVICE C0NNECTED [K]
# Author: morkev
#
# Contributors:
# - SIMULATAN: Fixed dongle interference by filtering out "Link" devices.
# - karoltheguy: Added SELinux context reset (restorecon) to prevent silent blocks.
# - wanjas: Verified 'input' group addition is required for distros like Pop_OS.

aamiaa

Caution

As of April 7th 2026, Discord has expressed their intent to crack down on automating quest completion.

Some users have received the following system message:

There isn't much I can do to make the script undetected, so use it at your own risk, as you most likely WILL get flagged by doing so.

Complete Recent Discord Quest

cereblab

What xAI's Grok Build CLI Actually Sends to xAI: A Wire-Level Analysis

By @cereblab — Independent AI Safety Checker. Reproduce it yourself: github.com/cereblab/grok-build-exfil-repro

A measured, reproducible teardown. Findings are backed by captured artifacts (endpoint, HTTP method, status code, byte size, host) and repro commands; where an observation was seen live but not retained as a file, §7 says so explicitly. Section 8 is an evidence appendix with SHA-256s and a "what we did not prove" list. All captures are of my own traffic on my own machine, using a throwaway repository containing fake "canary" secrets — no real credentials were exposed.

---

0. Summary

matthewzring

Markdown Text 101

Want to inject some flavor into your everyday text chat? You're in luck! Discord uses Markdown, a simple plain text formatting system that'll help you make your sentences stand out. Here's how to do it! Just add a few characters before & after your desired text to change your text! I'll show you some examples...

What this guide covers:

• Text Formatting
• Organizational Text Formatting
  • Headers
• Subtext

karpathy

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.