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.

arianvp

Native Secure Enclave backed ssh keys on MacOS

It turns out that MacOS Tahoe can generate and use secure-enclave backed SSH keys! This replaces projects like https://github.com/maxgoedjen/secretive

There is a shared library /usr/lib/ssh-keychain.dylib that traditionally has been used to add smartcard support to ssh by implementing PKCS11Provider interface. However since recently it also implements SecurityKeyProivder which supports loading keys directly from the secure enclave! SecurityKeyProvider is what is normally used to talk to FIDO2 devices (e.g. libfido2 can be used to talk to your Yubikey). However you can now use it to talk to your Secure Enclave instead!

h4x0r-dz

(?i)((access_key|access_token|admin_pass|admin_user|algolia_admin_key|algolia_api_key|alias_pass|alicloud_access_key|amazon_secret_access_key|amazonaws|ansible_vault_password|aos_key|api_key|api_key_secret|api_key_sid|api_secret|api.googlemaps AIza|apidocs|apikey|apiSecret|app_debug|app_id|app_key|app_log_level|app_secret|appkey|appkeysecret|application_key|appsecret|appspot|auth_token|authorizationToken|authsecret|aws_access|aws_access_key_id|aws_bucket|aws_key|aws_secret|aws_secret_key|aws_token|AWSSecretKey|b2_app_key|bashrc password|bintray_apikey|bintray_gpg_password|bintray_key|bintraykey|bluemix_api_key|bluemix_pass|browserstack_access_key|bucket_password|bucketeer_aws_access_key_id|bucketeer_aws_secret_access_key|built_branch_deploy_key|bx_password|cache_driver|cache_s3_secret_key|cattle_access_key|cattle_secret_key|certificate_password|ci_deploy_password|client_secret|client_zpk_secret_key|clojars_password|cloud_api_key|cloud_watch_aws_access_key|cloudant_password|cloudflare_api_key|cloudflare_auth_k

theevilbit

#!/bin/zsh

: '
You need a personal access token for GitHub to avoid hitting the rate limit. Refer to the docs:
https://docs.github.com/en/rest/guides/getting-started-with-the-rest-api
https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token
'

APPLE_OSS_DIR="all_apple_oss_archives"
APPLE_OSS_REPO_FILE="all_apple_oss_repo_names.txt"

nytr0gen

#!/bin/bash

version=$(curl -s https://portswigger.net/burp/releases | grep "Professional / Community" | head -n1 | grep -E "[0-9\.]+" -o)

if [[ -d ~/Applications/BurpSuite.app ]]; then
    local_version=$(cat ~/Applications/BurpSuite.app/Contents/Resources/version.txt)
    if [[ "$version" == "$local_version" ]]; then
        echo "Latest version is $version - which is the same as the local"
        exit 1
    fi

thesailordev

Carthage to Cocoapods

We recently had the need to align our frameworks to one dependency management system. Previously we were using Carthage and Cocoapods (or both) amongst different frameworks. The burden of supporting both platforms coupled with long build times on our CI/CD drew us away from Carthage. During this conversion I encountered several "gotcha" moments in our Xcode projects that I want to share with others who might be doing the same thing to get you to a clean Cocoapod based build.

Assumptions

• You have a working knowledge of Carthage and Cocoapods
• You have a working knowledge of Xcode project settings

jeffersonmartin

server {
    listen 80;
    server_name learn.mydomain.com;

    return 301 https://learn.mydomain.com$request_uri;
}

server {
    listen 443 ssl;
    server_name learn.mydomain.com;

pofat

// Using UInt8 as Byte
typealias Byte = UInt8
enum Bit: Int {
    case zero, one
}

extension Data {
    var bytes: [Byte] {
        var byteArray = [UInt8](repeating: 0, count: self.count)
        self.copyBytes(to: &byteArray, count: self.count)

genedelisa

/// soundbanks are either dls or sf2. see http://www.sf2midi.com/
var soundbank:NSURL!
var mp:AVMIDIPlayer!

func playMIDIFile() {

        // Load a SoundFont or DLS file.
        self.soundbank = NSBundle.mainBundle().URLForResource("GeneralUser GS MuseScore v1.442", withExtension: "sf2")
        
        // a standard MIDI file.