Neill Pearman njpearman

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.

PostgreSQL is Enough

See the new site: https://postgresisenough.dev

Purpose

Bootstrap knowledge of LLMs ASAP. With a bias/focus to GPT.

Avoid being a link dump. Try to provide only valuable well tuned information.

Prelude

Neural network links before starting with transformers.

Map	Action
<F1>	Causes Netrw to issue help
<cr>	Netrw will enter the directory or read the file
<del>	Netrw will attempt to remove the file/directory
-	Makes Netrw go up one directory
a	Toggles between normal display, hiding (suppress display of files matching g:netrw_list_hide) showing (display only files which match g:netrw_list_hide)
c	Make browsing directory the current directory
C	Setting the editing window
d	Make a directory

Command line tools every developer should know

Prior reading

The Unix philosophy, specially the "Make each program do one thing well" [1]

Basic

File and directory navigation/manipulation (ls, cd, mkdir, rm, rmdir, touch, cp, mv)
ln/unlink/readlink

	# Typescript TSX ctags
	# Based on https://github.com/romainl/ctags-patterns-for-javascript/blob/d965c4abfd00e438a24f6f828b5a1d00258f330c/ctagsrc

	--langdef=tsx
	--langmap=tsx:.tsx

	# These are the added ctags

	--regex-tsx=/^[ \t]*(export[ \t]{1,})?type[ \t]{1,}([A-Za-z0-9_$]{1,})/\2/t,Type,Types/{pcre2}
	--regex-tsx=/^[ \t]*(export[ \t]{1,})?interface[ \t]{1,}([A-Za-z0-9_$]{1,})/\2/t,Type,Types/{pcre2}

	HTTP status code symbols for Rails

	Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

	Status Code Symbol
	1xx Informational
	100 :continue
	101 :switching_protocols
	102 :processing



	ENCODER = Hash[('a'..'z').map {\|x\| [x,x] }].merge(Hash["aeiouya".chars.each_cons(2).to_a])
	DECODER = ENCODER.invert

	def encode string
	string.chars.map {\|c\| ENCODER[c] \|\| c }.join
	end

	def decode string