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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.

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	`${#VARNAME}`
Get a single character	`${VARNAME[index]}`

Raspberry Pi VPN Router

This is a quick-and-dirty guide to setting up a Raspberry Pi as a "router on a stick" to PrivateInternetAccess VPN.

Requirements

Install Raspbian Jessie (2016-05-27-raspbian-jessie.img) to your Pi's sdcard.

Use the Raspberry Pi Configuration tool or sudo raspi-config to:

	"""
	The most atomic way to train and run inference for a GPT in pure, dependency-free Python.
	This file is the complete algorithm.
	Everything else is just efficiency.

	@karpathy
	"""

	import os # os.path.exists
	import math # math.log, math.exp

	set -e

	if [ -z "$1" ]; then
	echo "Usage: $0 <iterations>"
	exit 1
	fi

	for ((i=1; i<=$1; i++)); do
	echo "Iteration $i"
	result=$(claude -p "@test-coverage-progress.txt \

	<?php
	/**
	* TimeoutGuard — A lightweight timeout wrapper using PHP ticks.
	*
	* This lets you interrupt execution of any callable if it exceeds a time limit.
	* Works even on Windows (unlike pcntl).
	*
	* ⚠️ Requires `declare(ticks=1);`
	*/

	#!/usr/bin/env php
	<?php

	require __DIR__ . '/../../vendor/autoload.php';

	use Castor\Console\Command\CompileCommand;
	use Symfony\Component\Console\Application;
	use Symfony\Component\Console\Command\Command;

	// We extends the CompileCommand, to be able to remove the constructor, because

	// router/index.js

	import Vue from 'vue'
	import VueRouter from 'vue-router'

	import routes from './routes'
	import middlewarePipeline from './middleware-pipeline'

	Vue.use(VueRouter)

	# Delete all logs
	TRUNCATE ps_log;


	# Delete old connection data (only used for stats)
	# change 2016-02-01 00:00:00 according to you needs
	DELETE c, cs
	FROM ps_connections c
	LEFT JOIN ps_connections_source cs ON (c.id_connections = cs.id_connections)
	WHERE c.date_add < '2016-02-01 00:00:00';

	<?php

	function slugify($string) {
	$string = transliterator_transliterate("Any-Latin; NFD; [:Nonspacing Mark:] Remove; NFC; [:Punctuation:] Remove; Lower();", $string);
	$string = preg_replace('/[-\s]+/', '-', $string);
	return trim($string, '-');
	}

	echo slugify("Я люблю PHP!");