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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.

The experience of using Node.JS with TypeScript, ts-node, and ESM is horrible.

There are countless guides of how to integrate them, but none of them seem to work.

Here's what worked for me.

Just add the following files and run npm run dev. You'll be good to go!

`package.json`

sdkman vs jenv

Jenv is great, but the JDKs have to be manually installed. If you need more than just a couple of them, you'll want to be able to install them via command line, and sdkman provides this capability very cleanly for java. So... is it possible to work with both sdkman and jenv? Yes and no. Some tricks will allow you to tell jenv about the java versions that are managed by sdkman, but setting defaults (using jenv local 17.0 for instance) does not work very well. Time for a cleaner solution. Sdkman provides all of the same functionality, with more power and a slightly different (but equally simple) syntax. I've switched from jenv to sdkman. Here's my cheat sheet.

Setup

Download and install sdkman. Follow the required instructions after installing. Then, run the config command to enable auto_env support.

echo “Installing SDKMAN"
curl -s https://get.sdkman.io | bash

Server Template for Busy Hackers

These are the instructions for the Server Template for Busy Hackers.

Getting started

1. Sign up for a DigitalOcean account (if you don't have one)

We'll be using DigitalOcean to spin up a server (or droplets as they're called). DigitalOcean is a popular choice for developers because of its friendly user interface and good customer support. Their prices are competitive and they offer good value for what you pay.

Quick Tips for Fast Code on the JVM

I was talking to a coworker recently about general techniques that almost always form the core of any effort to write very fast, down-to-the-metal hot path code on the JVM, and they pointed out that there really isn't a particularly good place to go for this information. It occurred to me that, really, I had more or less picked up all of it by word of mouth and experience, and there just aren't any good reference sources on the topic. So… here's my word of mouth.

This is by no means a comprehensive gist. It's also important to understand that the techniques that I outline in here are not 100% absolute either. Performance on the JVM is an incredibly complicated subject, and while there are rules that almost always hold true, the "almost" remains very salient. Also, for many or even most applications, there will be other techniques that I'm not mentioning which will have a greater impact. JMH, Java Flight Recorder, and a good profiler are your very best friend! Mea

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

Markdown License badges

Collection of License badges for your Project's README file.
This list includes the most common open source and open data licenses.
Easily copy and paste the code under the badges into your Markdown files.

Notes

The badges do not fully replace the license informations for your projects, they are only emblems for the README, that the user can see the License at first glance.

Translations: (No guarantee that the translations are up-to-date)

🇫🇷 Cette liste en français

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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	the best way (I've found) to completely uninstall node + npm is to do the following:

	go to /usr/local/lib and delete any node and node_modules
	go to /usr/local/include and delete any node and node_modules directory
	if you installed with brew install node, then run brew uninstall node in your terminal
	check your Home directory for any local or lib or include folders, and delete any node or node_modules from there
	go to /usr/local/bin and delete any node executable
	You may need to do the additional instructions as well:

	sudo rm /usr/local/bin/npm