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Krunker WebSockets Explained

WebSocket

WebSocket is a protocol over http. You should read: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API for more info on WebSocket.

Encoding/Decoding

Krunker uses msgpack for decoding and encoding packets. Msgpack is also smaller and sometimes faster depending on the implementation you use/make.

Packets

Like I said earlier, Krunker uses msgpack for decoding and encoding packets. A ping packet would like this: ["po"] which you send when you get a ["pi"] packet, and the ping result packet you receive is ["pir", ]. For fetching a profile, you can use ["r", "profile", , null]. The result packet would be like ["0", "profile", , , , , ...etc]. For finding packets, you can download https://krunker.io/social.html using a command like cURL, formatting the file and lo

Change Arc Browser Icon

A collection of commands that change the Arc Browser icon.

Commands

Theme	Command
Candy Arc	`defaults write company.thebrowser.Browser currentAppIconName candy`

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

Chat GPT "DAN" (and other "Jailbreaks")

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

	def get_github_token(app_id, pem_file, organization_slug, repository, private_key_file):
	jwt = get_jwt_token(app_id, private_key_file)
	installation = requests.get(f'https://api.github.com/orgs/{organization_slug}/installation', headers={'Authorization': f'Bearer {jwt}'})
	access_tokens_url = installation.json()['access_tokens_url']
	# values for the permissions are documented here: https://docs.github.com/en/rest/overview/permissions-required-for-github-apps
	data = {'repository': repository, 'permission': {'contents': 'write'}}
	token_request = requests.post(access_tokens_url, headers={'Authorization': f'Bearer {jwt}'}, json=data)
	token = token_request.json()['token']
	return token

	#!/bin/bash

	# To build podman, you have enough resource on the instance.
	# I tested this script on t2.xlarge.

	topdir=${HOME}/work
	mkdir -p ${topdir}

	# Install prereq rpms
	sudo dnf install -y git golang libseccomp-devel gpgme-devel autoconf automake libtool yajl yajl-devel libcap-devel systemd-devel cni-plugins iptables-nft rpm-build meson golang-github-cpuguy83-md2man.x86_64

	#!/usr/bin/env bash

	# Create directory for keyrings if it does not exist
	sudo install -d -m 0755 /etc/apt/keyrings

	# Download and save keyring
	wget -q "https://packages.mozilla.org/apt/repo-signing-key.gpg" -O- \| sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null

	# The fingerprint should be 35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3
	gpg -n -q --import --import-options import-show /etc/apt/keyrings/packages.mozilla.org.asc \| awk '/pub/{getline; gsub(/^ +\| +$/,""); print "\n"$0"\n"}'

	#!/usr/bin/env bash

	# =============================================================================
	# description: Ubuntu 22.04 Desktop Setup Script
	# author: Victor Miti <https://github.com/engineervix>
	# note: In its current state, this won't run unattended without issues.
	# There are some manual interventions in between certain steps.
	# The script primarily serves as documentation of the setup process
	# for future reference.
	# TODO: make this run unattended.

	#!/usr/bin/env sh
	:: default : yabai -m config active_window_opacity 1; yabai -m config normal_window_opacity 1;


	# Focus
	shift + alt - home : yabai -m window --focus north
	shift + alt - j : yabai -m window --focus north
	shift + alt - end : yabai -m window --focus south
	shift + alt - k : yabai -m window --focus south
	shift + alt - delete : yabai -m window --focus west