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Github : Signing commits using GPG (Ubuntu/Mac) 🔐

Do you have an Github account ? If not create one.
Install required tools
Latest Git Client
gpg tools

# Ubuntu
sudo apt-get install gpa seahorse
# MacOS with https://brew.sh/

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export your tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

Setting up proper permissions to a laravel directory

There are basically two ways to setup your ownership and permissions. Either you give yourself ownership or you make the webserver the owner of all files.

Webserver as owner (the way most people do it):

Assuming www-data is your webserver user.

NB: This document describles a 'Old-School' way of using Yubikey with SSH

Modern OpenSSH has native support for FIDO Authentication. Its much simpler and should also be more stable with less moving parts. OpenSSH also now has support for signing arbitary files witch can be used as replacement of gnupg. Git also supports signing commits/tags with ssh keys.

Pros of FIDO

Simpler stack / less moving parts
Works directly with ssh, ssh-add and ssh-keygen on most computers
Simpler
Private key can never leave the FIDO device

Cons of FIDO

How to Install Nginx, MariaDB, PHP-FPM on Ubuntu 20.04

This is a way to install and set up Nginx, MariaDB and PHP-FPM on Ubuntu 20.04.

NOTE: This has been prepared for ease of use in mind, not security, mostly in development machine. Please do not use these instructions to setup on a public server environment. Use other proper manuals instead.

First fetch the latest package list of Ubuntu:

$ sudo apt update

PHP 註解規範

通用註解寫法

一、文件的註解通用樣例（普通程式文件，類文件，函數文件，變量定義文件）

/**
 * XXXXX的文件
 *

Apple Borked my Nix!

Ok, so you've had nix (home-manager) working fine. Then Apple tells you it's time to update.

Ok. Reboot. Oops. It has now broken your Nix setup. Here's some stuff to work through. YMMV.

Note: This is what worked for me, who was just using nix + home-manager. The upgrade that I last did that caused all these issues was 12.3.X > 12.4

	<?php

	return [

	// ...

	'redis' => [
	'options' => [
	// Options can be specified here (with the lowest precedence).
	],

	{{-- You do not need to add this component if you are using the permanent option in the head component --}}
	<script>
	if (!window.sessionTimerPermanent && window.Livewire) {
	window.livewire.hook('afterDomUpdate', startSessionTimer)
	}
	// if you are on livewire > 1.3.1 and want to avoid the default error alert
	// https://github.com/livewire/livewire/pull/1146

	window.livewire.onError(statusCode => {
	if (statusCode === 419) {

	#!/bin/sh

	sudo yum install -y https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
	sudo yum install -y mysql-community-client