shan23

Enable native memory tracking in JVM by specifying the following flag

-XX:NativeMemoryTracking=detail

Known the <PID> of the java process

jps

To print ps based RSS

ps -p <PID> -o pcpu,rss,size,vsize

To print native memory tracking summary

Stop using JWTs!

TLDR: JWTs should not be used for keeping your user logged in. They are not designed for this purpose, they are not secure, and there is a much better tool which is designed for it: regular cookie sessions.

If you've got a bit of time to watch a presentation on it, I highly recommend this talk: https://www.youtube.com/watch?v=pYeekwv3vC4 (Note that other topics are largely skimmed over, such as CSRF protection. You should learn about other topics from other sources. Also note that "valid" usecases for JWTs at the end of the video can also be easily handled by other, better, and more secure tools. Specifically, PASETO.)

A related topic: Don't use localStorage (or sessionStorage) for authentication credentials, including JWT tokens: https://www.rdegges.com/2018/please-stop-using-local-storage/

The reason to avoid JWTs comes down to a couple different points:

The JWT specification is specifically designed only for very short-live tokens (~5 minute or less). Sessions

LLM Wiki v2

A pattern for building personal knowledge bases using LLMs. Extended with lessons from building agentmemory, a persistent memory engine for AI coding agents.

This builds on Andrej Karpathy's original LLM Wiki idea file. Everything in the original still applies. This document adds what we learned running the pattern in production: what breaks at scale, what's missing, and what separates a wiki that stays useful from one that rots.

What the original gets right

The core insight is correct: stop re-deriving, start compiling. RAG retrieves and forgets. A wiki accumulates and compounds. The three-layer architecture (raw sources, wiki, schema) works. The operations (ingest, query, lint) cover the basics. If you haven't read the original, start there.

	/**
	* Island universe
	*/

	import eu.ace_design.island.{PointGenerator, RandomGrid, SquaredGrid}
	val MAP_SIZE = 800
	val generators: Map[String,PointGenerator] = Map(
	"RANDOM" -> new RandomGrid(MAP_SIZE),
	"SQUARE" -> new SquaredGrid(MAP_SIZE)
	)

	# Quick intro to accessing Stubhub API with Python
	# Ozzie Liu ([email protected])
	# Related blog post: http://ozzieliu.com/2016/06/21/scraping-ticket-data-with-stubhub-api/
	# Updated 3/5/2017 for Python 3 and Stubhub's InventorySearchAPI - v2

	import requests
	import base64
	import json
	import pprint
	import pandas as pd

	from selenium import webdriver
	from selenium.webdriver.support.ui import WebDriverWait
	from webdriver_manager.chrome import ChromeDriverManager

	class Autotrader:
	def __init__(self, url):
	self.url = url
	self.driver = None
	self.page_num = None
	self.xpath_dict = self.XPathDict()