Wu Tingfeng elliotwutingfeng

Installing Ubuntu 24.04 on a 2014 Macbook Air

Recommended: Use LVM + Encryption.
Expect slow installation speeds (the ports are USB 3.0 but are stuck at 2.0 speeds during installation)
Do not bother with installing proprietary components during OS installation; it is too slow. Do it post-installation.

Wi-Fi

Wi-Fi will not work out of the box. You will need a USB Wi-Fi dongle to download Wi-Fi drivers from the Internet.
After installing the OS, plug in your Wi-Fi dongle and run the following commands to update the system, install Wi-Fi drivers, and upgrade snap packages.

Disable Google Assistant on Google Pixel devices

Stop Google Assistant from popping up whenever you plug in your earphones by disabling the "Google" app on your Google Pixel device (phone or tablet).

	export MANPATH="/usr/local/man:$MANPATH"

	# You may need to manually set your language environment
	export LANG=en_US.UTF-8
	export LC_ALL=en_US.UTF-8

	"""
	This is free and unencumbered software released into the public domain.

	Anyone is free to copy, modify, publish, use, compile, sell, or
	distribute this software, either in source code form or as a compiled
	binary, for any purpose, commercial or non-commercial, and by any
	means.

	In jurisdictions that recognize copyright laws, the author or authors
	of this software dedicate any and all copyright interest in the

	"""Estimate password entropy.

	Entropy (bits) \| Estimated Strength
	---------------\|-------------------
	0 to 35 \| Very weak
	36 to 59 \| Weak
	60 to 119 \| Strong
	120+ \| Very strong

	WARNING: High entropy is of little use if the password has been leaked before in data breaches.

	def seconds_diff(time1: str, time2: str) -> int:
	def to_seconds(time_str: str) -> int:
	minutes, seconds = map(int, time_str.split(':', 1))
	return minutes * 60 + seconds
	return abs(to_seconds(time1) - to_seconds(time2))

	# mOTP algorithm in Ruby under a permissive license. Permission has been granted by original author Matthias Straub
	# to redistribute the mOTP algorithm under the MIT License.
	# References: https://github.com/elliotwutingfeng/motp/blob/main/CREDITS.md and https://motp.sourceforge.net
	require 'openssl'

	secret = '0123456789ABCDEF'
	pin = '0000'
	period = 10
	digits = 6
	unix_seconds = Time.now.to_i

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	#!/bin/sh
	# SHA1, 30 seconds, 6 digits; the most common configuration.
	# Adjust accordingly if your OTP credential uses different parameter values.

	# Upon entering this command, type in your TOTP secret (it will not be echoed back to the screen), then press 'Enter'
	stty -echo;oathtool --totp=SHA1 --time-step-size=30s --digits=6 --base32 -;stty echo