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Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

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Docker Hub 镜像加速器

国内从 Docker Hub 拉取镜像有时会遇到困难，此时可以配置镜像加速器。Docker 官方和国内很多云服务商都提供了国内加速器服务。

Dockerized 实践 https://github.com/y0ngb1n/dockerized

配置加速地址

Ubuntu 16.04+、Debian 8+、CentOS 7+

Modern Software Engineering

Knowledge and Education should be open and free. Hierarchy and Exploitation must be abolished.

Z. (down) Notes below. Avoid funnel sales, if you spent money, there's something wrong. Also don't forget good OpSec, self defense gears, and physical/mental strength.
A. (go) Development Environment.
B. (go) Complementary Subjects (Linguistics, English, Security, OpSec, Psychology, Anthropology, History, Philosophy, Economics, Business, Defense, Cooking, Xenology, Self Defense).
C. (go) Fundamentals of Science and Technology (Logic, Physics (Classical/Quantum Mechanics, Thermodynamics, Electricity, Relativity, Electronics, Electromagnetism, Optoelectronic, Semiconductor, Fusion), Mathematics (Calculus, Linear Algebra, Statistics, Applied Math), Game Theory, Biology, Medical, and Their Applications).
D. ([go](#d-computer-science-and-competitiv

This article intends to provide a quick refresher and reference guide for aspiring drone pilots in German territory, particularly those from outside the EU.

Disclaimer: The author is not a law professional and assumes no liability, but strives to keep this guide up-to-date and factually correct. Please check the laws yourself before conducting a flight. No commission, referrals or similar awards have been provided to the author. The guide only applies to actual EU member states and Germany specifically, unless noted otherwise. The author has no knowledge about the edge cases Switzerland, Norway, Iceland, Liechtenstein and the UK - they may or may not have adopted the EU regulations. Please file a comment if you have corrections, questions, new edge cases or links to state-specific information.

Basic EU-wide rules

German drone law follows the basic EU harmonized rules:

Drone classes

Drones are classified by weight and capabilities by the manufacturer:
C0 drones weigh below 250g (e.g. the DJ

Cómo colaborar en un proyecto en GitHub

Fork del repositorio
Clonar el repositorio
Actualizar la rama master
Crear una rama
Hacer los cambios
Hacer un Pull Request

Fork del repositorio

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

Instalação dos pacotes do Ubuntu

apt-get install pv nginx-extras                                   \
    php-fpm php-gd php-mbstring php-cli php-mysql php-zip php-xml \
    mariadb-server mariadb-client

	import 'package:cloud_firestore/cloud_firestore.dart';
	class DatabaseService<T> {
	final String collection;
	final Firestore _db = Firestore.instance;
	final T Function(String, Map<String,dynamic>) fromDS;
	final Map<String,dynamic> Function(T) toMap;
	DatabaseService(this.collection, {this.fromDS,this.toMap});
	Future<T> getSingle(String id) async {
	var snap = await _db.collection(collection).document(id).get();
	if(!snap.exists) return null;

	#!/usr/bin/env python3
	import ctypes

	LC_SYMTAB = 0x2


	class mach_header_64(ctypes.Structure):
	_fields_ = (
	("magic", ctypes.c_uint32),
	("cputype", ctypes.c_uint32),

	import { ref, computed, onBeforeUpdate, Comment, Fragment, Text, useSlots } from 'vue'

	// Adapted from https://github.com/vuejs/vue-next/blob/ca17162e377e0a0bf3fae9d92d0fdcb32084a9fe/packages/runtime-core/src/helpers/renderSlot.ts#L77
	// Demo: https://play.vuejs.org/#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