bnwa

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:

brew is a bad neighbor

This isn't a guide about locking down homebrew so that it can't touch the rest of your system security-wise.

This guide doesn't fix the inherent security issues of a package management system that will literally yell at you if you try to do something about "huh, maybe it's not great my executables are writeable by my account without requiring authorization first".

But it absolutely is a guide about shoving it into its own little corner so that you can take it or leave it as you see fit, instead of just letting the project do what it likes like completely taking over permissions and ownership of a directory that might be in use by other software on your Mac and stomping all over their contents.

By following this guide you will:

Never have to run sudo to forcefully change permissions of some directory to be owned by your account

Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

Use ESM yourself. (preferred)
Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
Stay on the existing version of the package until you can move to ESM.

True Color (24-bit) and italics with alacritty + tmux + vim (neovim)

This should make True Color (24-bit) and italics work in your tmux session and vim/neovim when using Alacritty (and should be compatible with any other terminal emulator, including Kitty).

Testing colors

Running this script should look the same in tmux as without.

curl -s https://gist.githubusercontent.com/lifepillar/09a44b8cf0f9397465614e622979107f/raw/24-bit-color.sh >24-bit-color.sh

Delimited Continuations

Delimited continuations manipulate the control flow of programs. Similar to control structures like conditionals or loops they allow to deviate from a sequential flow of control.

We use exception handling as another example for control flow manipulation and later show how to implement it using delimited continuations. Finally, we show that nondeterminism can also be expressed using delimited continuations.

	1) add TaskScheduler spring bean:

	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.scheduling.TaskScheduler;
	import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;

	@Configuration
	public class AppConfig {

	# /etc/nsmb.conf - macOS 11.3 - 2021-04-29
	#------------------------------------------------------------------------------
	# SMB configuration for macOS 11.3 <-> Synology
	#------------------------------------------------------------------------------
	# Additional information:
	# -----------------------
	# https://support.apple.com/de-de/HT211927
	# https://support.apple.com/en-us/HT208209
	# https://apple.stackexchange.com/questions/309016/smb-share-deadlocks-since-high-sierra
	# https://photographylife.com/afp-vs-nfs-vs-smb-performance

	/*

	limitLoop.js - limit the frame-rate when using requestAnimation frame
	Released under an MIT license.

	When to use it?
	----------------
	A consistent frame-rate can be better than a janky experience only
	occasionally hitting 60fps. Use this trick to target a specific frame-
	rate (e.g 30fps, 48fps) until browsers better tackle this problem