Li-Wen Hsu lwhsu

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

Overview

How to configure FreeBSD and applicable applications to work with Yubikey for authentication. This serves as my work-in-progress documentation of the configuration knobs needed to make this work properly.

FreeBSD ssh with piv smartcard slot on Yubikey (pkcs11 via libykcs11.so)
FreeBSD ssh with fido support on Yubikey
FreeBSD Firefox/Chromium with fido + webauthn support on Yubikey
FreeBSD local console and gdm authentication using pam on Yubikey
FreeBSD official YubiKey tools

Latest Tested FreeBSD versions

FreeBSD 13.2 Testing (Aug 2023)
FreeBSD stable/13 Testing (Aug 2023) with OpenSSH_9.3p2

Think twice before abandoning X11. Wayland breaks everything!

Source: https://x.com/LundukeJournal/status/1940441670098809093

Wayland breaks everything! It is binary incompatible, provides no clear transition path with 1:1 replacements for everything in X11, and is even philosophically incompatible with X11. Hence, if you are interested in existing applications to "just work" without the need for adjustments, then you may be better off avoiding Wayland.

Wayland solves no issues I have but breaks almost everything I need. Even the most basic, most simple things (like xkill) - in this case with no obvious replacement. And usually it stays broken, because the Wayland folks mostly seem to care about Automotive, Gnome, maybe KDE - and alienating everyone else (e.g., people using just an X11 window manager or something like GNUstep) in the process.

Mappings for DMI/SMBIOS to Linux and dmidecode

Information can be put into dmi tables via some qemu-system hosts (x86_64 and aarch64). That information is exposed in Linux under /sys/class/dmi/id and can be read with dmidecode. The names are very annoyingly inconsistent. The point of this doc is to map them.

See qemu-system-x86_64 --help for the fields that qemu will accept. qemu smbios flags vary with qemu version.

Mappings

Example qemu cmdline:

qemu-system-x86_64 -smbios type=,field=value[,...]

這篇文章旨在作為快速參考與展示。要更多完整的資訊，請見 John Gruber 原本的規格與 Github 偏好的 Markdown（Github-flavored Markdown，簡寫為GFM）資訊頁。

如果你正在找 Markdown Here 的小抄（Cheatsheet），這裡也有一篇。你也可以看看更多 Markdown 的工具。

譯註：可以參考這份中文版文件，有更詳盡的 Markdown 語法說明；如果需要可以練習的線上編輯器，可以試試看HackMD。

Vim 推廣貼紙

想幫筆電 (Laptop) 貼上 Vim 貼紙嗎？喜歡 Vim 嗎？現在您可以帶回家了！

[» 更多照片][more]

貼紙圖檔來源：[File:Vimlogo.svg | Wikimedia Commons][VimLogo.svg]。
尺寸：5cm * 5cm。

Edward Snowden at IETF 93

Edward Snowden answered questions after a showing of CITIZENFOUR at the IETF93 meeting; this is a transcript of the video recording.

For more information, see the Internet Society article.

Introduction
Scale of Pervasive Monitoring
Returning to the US
Preserving the Internet

	#!/usr/bin/env python

	import os

	f = open('revisions')
	revisions = [x.rstrip('\n') for x in f.readlines()]

	low = 0
	high = len(revisions) - 1
	ptr = 0

	-- This exercise covers the first 6 chapters of "Learn You a Haskell for Great Good!"

	-- Chapter 1 - http://learnyouahaskell.com/introduction
	-- Chapter 2 - http://learnyouahaskell.com/starting-out
	-- Chapter 3 - http://learnyouahaskell.com/types-and-typeclasses
	-- Chapter 4 - http://learnyouahaskell.com/syntax-in-functions
	-- Chapter 5 - http://learnyouahaskell.com/recursion
	-- Chapter 6 - http://learnyouahaskell.com/higher-order-functions

	-- Download this file and then type ":l Chapter-1-6.hs" in GHCi to load this exercise

	Copy all the files to the build directory.
	Copy icudtl.dat to the build directory. (you can find it in the vscode downloads ex for linux).
	chromium version in port is 52.0.2743.116.
	This was built with FreeBSD 11.0-RELEASE-p1. If building with other versions probably need to change
	the freebsd versions in diff files (ex. freebsd11 => freebsd10)
	Installed
	node => v6.9.1
	npm => 3.9.2

	>chmod 755 vscode_build.sh