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Languages, Compilers, Debuggers, and Development Infrastructure Engineering Internships at Apple

Apple's Languages, Compilers, Debuggers and Development Infrastructure teams are now looking for interns for 2022!

We are looking for students who are motivated to get hands on experience working on these exciting technologies. We have interesting problems to solve at every level, from low-level assembly to high-level Swift code. No prior language, compiler or debugger experience is required and candidates without such experience are encouraged to apply. Candidates should be comfortable writing code in C++.

These are paid internships. While most internships last 3 months, starting in May or June, the starting dates and the internship length are flexible. Internships are restricted to students. Students must be enrolled in school in the quarter/semester immediately following the internship. We are looking for candidates of all education levels, from Bachelor’s to Ph.D. Applicants from outside the U.S.A. are w

Which web animations are expensive and which are cheap?

You can add a lot of polish to a website or app with animations and transitions. Some animations can be built in two seconds with a single line of code. Others take days, and still others have to be hand-drawn by an actual animator. How do you tell which is which?

Skip to examples of "cheap" animations

(Note to developers: The examples are all simple hand-written SVGs, animated with CSS. Click on an image to open it in a new tab, and then "view source.")

What makes animations "expensive"?

利用 NGINX 的 Stream 模塊 sni_preread 功能，可以做到讓 Trojan 和其他網站在同一台機器上共享 443 端口。

TCP + TLS + Web

背景

目前 Vmess + WebSocket + TLS （以下简称 wss）方式，因其特征如同 HTTPS 流量，可以隐藏 V2Ray 路径，主动侦测会得到正常 HTTP 网站响应，具有良好的伪装能力，目前被广泛用于反审查。
但是如此强大的伪装能力，需要付出严重的性能代价：TLS 1.3 握手需要消耗 1-rtt，WS 握手也需要消耗 1-rtt，增大了握手延迟。V2Ray 增加了 mux 以减少握手的发生，然而实际使用中 mux 体验并不好，很多用户选择关闭。
最近兴起了一个新的反审查工具——Trojan，这个工具将一个类似 Socks 的协议直接通过 TLS 传输，并将认证失败的流量交由 Web 服务器处理。降低 WS 延迟的同时，提供与 wss 方式一样的伪装能力。但是该工具较为年轻，没有路由功能，各平台图形化客户端也不完善。

Using Git Commit Message Templates to Write Better Commit Messages

The always enthusiastic and knowledgeable mr. @jasaltvik shared with our team an article on writing (good) Git commit messages: How to Write a Git Commit Message. This excellent article explains why good Git commit messages are important, and explains what constitutes a good commit message. I wholeheartedly agree with what @cbeams writes in his article. (Have you read it yet? If not, go read it now. I'll wait.) It's sensible stuff. So I decided to start following the

Commit Message Conventions

These rules are adopted from the AngularJS commit conventions.

Goals
Generating CHANGELOG.md
- Recognizing unimportant commits
- Provide more information when browsing the history
Format of the commit message
Subject line

Introduction

An introduction to curl using GitHub's API.

The Basics

Makes a basic GET request to the specifed URI

curl https://api.github.com/users/caspyin

	{
	"log": {
	"access": "",
	"error": "",
	"loglevel": "warning"
	},
	"inbounds": [
	{
	"port": 1080,
	"listen": "127.0.0.1",

	# LVDB - LLOOGG Memory DB
	# Copyriht (C) 2009 Salvatore Sanfilippo <[email protected]>
	# All Rights Reserved

	# TODO
	# - cron with cleanup of timedout clients, automatic dump
	# - the dump should use array startsearch to write it line by line
	# and may just use gets to read element by element and load the whole state.
	# - 'help','stopserver','saveandstopserver','save','load','reset','keys' commands.
	# - ttl with milliseconds resolution 'ttl a 1000'. Check ttl in dump!