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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.

Design rules

ArchLinux ElGato FaceCam - Chrome V4L2Loopback

IMPORTANT

This is not required any more, you need upgrade your firmware to the version +4.09 using ElGato Cammera Hub

https://help.elgato.com/hc/en-us/articles/4406041241997-Elgato-Facecam-Firmware-Update

Changes in firmware 4.09

Added MJPEG as a fallback video format. MJPEG requires less USB bandwidth and improves compatibility with programs that cannot handle uncompressed video.

How do I dropdown?

This is how you dropdown.

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Computer Graphics Programming Resources

List of freely available resources to study computer graphics programming.

0. Getting Started

Replace empty-branch with your desired branch name.

git checkout --orphan empty-branch

Then you can remove all the files you'll have in the staging area (so that they don't get committed):

git rm -rf .

At this point you have an empty branch, on your machine.

	# Check these threads before proceeding:
	# https://github.com/microsoft/WSL/discussions/5857
	# https://github.com/microsoft/WSL/issues/5821
	if (-Not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) {
	$CmdLine = "-File `"" + $MyInvocation.MyCommand.Path + "`" " + $MyInvocation.UnboundArguments
	Start-Process -FilePath PowerShell.exe -Verb Runas -ArgumentList $CmdLine
	Exit
	}
	# Restart the Host Network Service
	Restart-Service -Force -Name hns

	# filter by request host header
	varnishlog -q 'ReqHeader ~ "Host: example.com"'

	# filter by request url
	varnishlog -q 'ReqURL ~ "^/some/path/"'

	# filter by client ip (behind reverse proxy)
	varnishlog -q 'ReqHeader ~ "X-Real-IP: .*123.123.123.123"'

	# filter by request host header and show request url and referrer header

	pacman -S --needed git base-devel
	git clone https://aur.archlinux.org/yay.git
	cd yay
	makepkg -si

	yay -S flutter

	java -version

	sudo pacman -S jre8-openjdk

	#include <https://raw.githubusercontent.com/SanderMertens/flecs/master/flecs.h>
	#include <https://raw.githubusercontent.com/SanderMertens/flecs/master/flecs.c>
	#include <https://gist.githubusercontent.com/ArnCarveris/535cf7c25007271bfa75d6396853a4a3/raw/99b57783a906995b4b89c4fb8d053c0ed2981603/flecs_godbolt.h>

	typedef struct {
	float x, y;
	} Position, Velocity;

	typedef struct {
	float time;