MacOS on Notities

Deskflow: Control multiple computers with 1 keyboard and mouse for: macOS, Windows and Linux

Mon, 24 Mar 2025 17:57:51 +0000

With Deskflow you control multiple computers — macOS, Windows or Linux — using a single mouse and keyboard. It works as a software-based KVM switch (without video) and is sponsored by Synergy. This program is still actively maintained, with an intuitive interface that makes it easy to use. Tip: disable TLS in the settings for a smooth start.

Download it via: https://github.com/deskflow/deskflow/releases. Look for the “latest” tag and check all assets for the correct version!

macOS desktop extended across 3 screens: iMac, MacBook and iPad

Sun, 26 Nov 2023 15:16:27 +0000

In the setup I use I have the following 3 devices:

iMac 27" late 2015 with OpenCore Legacy Patcher Sonoma: 14.1.1
MacBook Pro 15" late 2016 with OpenCore Legacy Patcher Sonoma: 14.1.1
iPad 10.2" 7th Gen with iPadOS version: 17.1.1

They are connected to the same WiFi network.

Steps:

On the iMac go to: System Settings -> Displays
Click the plus sign to the right of the Built-in Display
Choose under Mirror or Extend to: MacBook Pro
Choose under Link keyboard and mouse to: iPad
You now see the 3 screens under Displays, but it is not yet extended across all 3
Click on the iPad
Choose for the option: “Use as” - select: Extend or mirrored display
You now see the same desktop on all 3 devices
And you can drag applications from the iMac to the MacBook or the iPad

Multiple versions of Java on macOS

Wed, 27 Sep 2023 17:43:18 +0000

$ ls -al /usr/local/opt/ | grep -i openjdk

$ brew install jenv

$ jenv add /Library/Java/JavaVirtualMachines/openjdk-17.jdk/Contents/Home/

$ jenv versions
$ jenv local 1.8
$ java -version
$ jenv global 1.8
$ java -version
$ jenv shell 1.8
$ java -version
$ jenv versions

The Linux mlocate command on macOS

Wed, 27 Sep 2023 17:40:13 +0000

The Linux mlocate command under macOS

sudo /usr/libexec/locate.updatedb

sudo ln -s /usr/libexec/locate.updatedb /usr/local/bin/updatedb

Sharing files with MS-DOS 6.22 in VirtualBox and macOS

Sun, 17 Sep 2023 12:29:24 +0000

How to create an ISO file of a directory on macOS that can be mounted as a CDROM in MS-DOS 6.22 ?

Start Disk Utility on macOS

Go to: File -> New Image -> Image from Folder
Choose the directory and press Choose
Set Image Format to: DVD/CD master and press Save
A *.cdr file will be created
Go to the command line
Cd to the directory with the *.cdr file
Type the command: $ hdiutil makehybrid -iso -joliet -o tcc.iso TCC.cdr
Go to your virtual machine running MS-DOS 6.22 and mount the newly created *.iso file
In the MS-DOS 6.22 virtual machine you can now access the contents on drive D:

Any questions?

Bring an old / second-hand Apple Mac computer back to life with OpenCore Legacy Patcher

Sun, 30 Apr 2023 12:53:36 +0000

Is computing your hobby and have you always wanted to try an Apple Mac? A tip / recommendation is OpenCore Legacy Patcher.

See the official website: https://github.com/dortania/OpenCore-Legacy-Patcher/releases

And the YouTube channel: https://www.youtube.com/@Mr.Macintosh

With this tool you can still use older / second-hand and now cheaper hardware with the latest software. Truly worth trying at least once.

Installing Virtual Machines on macOS Monterey OpenCore Legacy Patcher

Thu, 01 Dec 2022 21:20:43 +0000

Try Oracle VirtualBox version 6.1.40 the older version. In my home lab the newest version of VirtualBox 7.0.4 did not work due to the error: hv_vm_create() failed: 0xfae94001 (VERR_NEM_INIT_FAILED)

In the older version this was not an issue.

New life in an old Apple computer (iMac, MacBook)

Fri, 25 Feb 2022 11:09:02 +0000

Install the VirtualBox application and run a virtual machine inside it with the latest version of Linux or Windows. In many cases this can solve problems with browsing the internet — for example, making it possible to visit websites that no longer work in the old Apple environment.