Heechul Ryu ryuheechul

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:

Go to OpenWRT release page, select the latest release stable release, then targets -> x86 -> 64. Right-click generic-ext4-combined.img.gz (not the "efi"!) and copy the link.
On the Proxmox host, download the archive and unpack it:

wget *paste link here*
gunzip openwrt-*.img.gz

Resize the image to be the size you want your VM's disk to be (example with 8 GiB):

In the following gist I'm going to guide you through the process of installing and booting an entire linux distribution with full desktop environment just like you would have with a classical VM, but with much better performance and much worse isolation :)

The reason why I did this was mainly because it's cool, but also to test new distros with decent graphics performance without actually booting them on my PC.

If you "try this at home" just keep in mind a container is not as secure as a VM, and some of the option we're going to explore will weaken container isolation from "a bit risky" to "totally unsafe" depending on what you choose.

Also, we're going to use systemd-nspawn for containers as it's probably the best fit for our use case and can also boot any linux partition without needing to prepare an apposite container image.

Less go!

Remarkable 2 Remux and KOReader

Lightly extended and updated version of Megan Walker's tutorial

Linux Desktop on Apple Silicon in Practice

I bought M1 MacBook Air. It is the fastest computer I have, and I have been a GNOME/GNU/Linux user for long time. It is obvious conclusion that I need practical Linux desktop environment on Apple Silicon.

Fortunately, Linux already works on Apple Silicon/M1. But how practical is it?

Two native ports exist.

Think twice before abandoning Xorg. Wayland breaks everything!

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.

As 2024 is winding down:

Use pre-built gccemacs

Fortunatly we could use pre-built gccemacs right now.

Those two repos did the greate job for us.

https://github.com/twlz0ne/nix-gccemacs-darwin

https://github.com/twlz0ne/nix-gccemacs-sierra

Here is the tutorial:

	#!/bin/bash

	AUTH_NAME="auth2kube"
	NEW_KUBECONFIG="newkubeconfig"

	echo "create a certificate request for system:admin user"
	openssl req -new -newkey rsa:4096 -nodes -keyout $AUTH_NAME.key -out $AUTH_NAME.csr -subj "/CN=system:admin"

	echo "create signing request resource definition"

	# high sierra
	sudo launchctl stop com.openssh.sshd
	sudo launchctl start com.openssh.sshd


	# latest
	sudo vim /etc/services # (update the port config for ssh and save)
	sudo launchctl unload /System/Library/LaunchDaemons/ssh.plist
	sudo launchctl load -w /System/Library/LaunchDaemons/ssh.plist

	# Put this function to your .bashrc file.
	# Usage: mv oldfilename
	# If you call mv without the second parameter it will prompt you to edit the filename on command line.
	# Original mv is called when it's called with more than one argument.
	# It's useful when you want to change just a few letters in a long name.
	#
	# Also see:
	# - imv from renameutils
	# - Ctrl-W Ctrl-Y Ctrl-Y (cut last word, paste, paste)