jpuffsh

hi, i'm daniel. i'm a 15-year-old with some programming experience and i do a little bug hunting in my free time. here's the insane story of how I found a single bug that affected over half of all Fortune 500 companies:

say hello to zendesk

If you've spent some time online, you’ve probably come across Zendesk.

Zendesk is a customer service tool used by some of the world’s top companies. It’s easy to set up: you link it to your company’s support email (like [email protected]), and Zendesk starts managing incoming emails and creating tickets. You can handle these tickets yourself or have a support team do it for you. Zendesk is a billion-dollar company, trusted by big names like Cloudflare.

Personally, I’ve always found it surprising that these massive companies, worth billions, rely on third-party tools like Zendesk instead of building their own in-house ticketing systems.

your weakest link

SQLite Journal Modes Explained

SQLite supports several journal modes, each offering advantages in performance, concurrency, and the way changes are logged and applied. This guide explains the journal modes available in SQLite so you can choose the right one for your application.

1. WAL (Write‑Ahead Logging)

PRAGMA journal_mode = WAL;

Description

Cobalt's OUTDATED Guide to Discord Bot Hosting

Here is a guide to help you what Discord bot host to pick. This was originally a tag on the discord.py server, but was moved to this GitHub gist as it eventually rolled over the 2000 character limit.

VPS Hosting (best)

I recommend a cheap VPS server as the best way to host your bot online for 24/7. Here are some good picks, credit to the discord.py server for this

Scaleway - EU
Linode - EU/US/Asia

Openlab

Openlab is a Linux server that ICS students can connect to and use for coursework.

Prerequisites

Must be an ICS student at UC Irvine
Know your ICS password
- If you don't have one, active your ICS Account.
- If you forgot, reset your ICS Password.

How to connect to Openlab

Install homebrew from https://brew.sh/ (follow the instructions there)
tap the https://invent.kde.org/packaging/homebrew-kde/ repo, brew tap kde-mac/kde https://invent.kde.org/packaging/homebrew-kde.git
brew edit okular, workaround now is to comment out or delete the line depends_on "chmlib" (won't compile on macos arm64 for now as of 2021-08-18), then save (if using vim you need to first press i to insert/type, when saving then <esc> then :wq then <enter>.
brew install okular, wait for stuff to compile and/or install
It may ask for keychain credentials (to sign the binaries? because of mac arm64 security policy https://eclecticlight.co/2021/01/26/when-you-dont-have-permission-to-run-an-app-on-an-m1-mac/)
$(brew --repo kde-mac/kde)/tools/do-caveats.sh
Now okular is in your $HOME/Applications/KDE folder, and will show up in Launchpad! You can view pdf, djvu, etc documents.

Edit: as of 2025 there is now a precompiled nightly binary available for download at https://okul

Since I sometimes get asked about what I would recommend as reads to gain a deeper understanding about software engineering, I was thinking to just compile a list of my favourite books in this area, which I consider a very valuable read 🙂

Object Oriented Programming

Design Patterns: Elements of Reusable Object-Oriented Software

By Gamma et. al.

I think this is one of the classics and a very recommended read (but with a pinch of salt), basically, one of the books starting the patterns movement in OOP. While one has to be careful to not blindly force those patterns into your own software design, it is critical knowledge and part of the cultural backbone of the software industry. Knowing those patterns and being able to quickly identify them helps tremendously in understanding unfamiliar code bases and when having architecture discussions with peers.

	#!/bin/zsh

	# Define color codes
	RED="\033[31m"
	GREEN="\033[32m"
	YELLOW="\033[33m"
	BLUE="\033[34m"
	RESET="\033[0m"

	# Define arrays to track installed and failed apps

	# This screenshot method will simply display the timestamp, take a screenshot of it, and then tell you it took a screenshot.
	s show-text '${time-pos}';screenshot window;show-text "Screenshot Saved\n${screenshot-directory}/${filename/no-ext} · ${playback-time}.${screenshot-format}" "2500"

	# Quit MPV but retain watch position
	q quit-watch-later

	#!/usr/bin/env bash

	# Builds mpv & mpv.app on Apple silicon Macs.
	# Run this script from the root directory of the mpv repo.

	# if anything fails, gtfo
	set -ex

	meson setup build
	meson compile -C build

	function run(input, parameters) {
	const appNames = [];
	const skipAppNames = [];
	const verbose = true;

	const scriptName = 'close_notifications_applescript';

	const CLEAR_ALL_ACTION = 'Clear All';
	const CLEAR_ALL_ACTION_TOP = 'Clear';
	const CLOSE_ACTION = 'Close';