# MacOS



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# Research on alternative to native Calendar application in MacOS

# Disadvantages or "What could be done better"

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/scaled-1680-/juP4KzxhMxATDfaT-image-1753543902450.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/juP4KzxhMxATDfaT-image-1753543902450.png)


## Creating overlapping event

The biggest challenge in the native calendar app on Macintosh is to get the new meeting of the new event created in the middle of the day because there is many layers of events overlapping and it's impossible to click into the empty space without being selected another event.

In the screenshot below, it is demonstrated that it is impossible to create an event on 10.30 on Friday without selecting the green event. 

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/scaled-1680-/geeFFtSA3hdCdmWC-image-1753543552613.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/geeFFtSA3hdCdmWC-image-1753543552613.png)


## Setting up the time is non-intuitive and difficult

Another challenge is to set the time when event beings and ends. it is necessary to press [Space], follown by [Tabulator] several times to move from one field to another.

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/scaled-1680-/K4uG0Lb6ZsiOxqoE-image-1753543761839.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/K4uG0Lb6ZsiOxqoE-image-1753543761839.png)




# Advantages or what I like:

It is positive that the duration of event can be chosen.

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/scaled-1680-/G7m3cD5khFJG2Ww7-image-1753544298182.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2025-07/G7m3cD5khFJG2Ww7-image-1753544298182.png)

# MacOS Software update using CLI

# Manual update

# Software Update using CLI

This is how to update MacOS from command-line / terminal


```bash
sudo softwareupdate --install --recommended
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/scaled-1680-/CCzRxTeFDCiVMkEO-image-1785047340823.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/CCzRxTeFDCiVMkEO-image-1785047340823.png)


List what available
```bash
sudo softwareupdate --list

sudo softwareupdate --list | grep -i label | grep -i macos
```

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/scaled-1680-/rlB9rePg0TEumhTN-image-1791176018159.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/rlB9rePg0TEumhTN-image-1791176018159.png)


Download only  (first)
```bash
sudo softwareupdate --download "macOS Tahoe 26.7.1-25G241"
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/scaled-1680-/aEGJhwIkEGygViUH-image-1791176091810.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/aEGJhwIkEGygViUH-image-1791176091810.png)

Do not install, download first.

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/scaled-1680-/S3kRN3qdce3OK27d-image-1790872005458.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/S3kRN3qdce3OK27d-image-1790872005458.png)

And reserve some space :-)

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/scaled-1680-/8D43MkT2Egq3uM48-image-1790872053153.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/8D43MkT2Egq3uM48-image-1790872053153.png)

Downloaded

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/scaled-1680-/kDzRAjiP6vahP5Gs-image-1791178084577.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/kDzRAjiP6vahP5Gs-image-1791178084577.png)

Install, once downloaded

```bash
sudo softwareupdate --verbose --install "macOS Tahoe 26.7.1-25G241"
```

# Apple Store updates using CLI

Using 'mas', installed using 'brew', Update software from Apple Store
```bash
brew install mas
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/scaled-1680-/eUF4fx0SwzIwatFO-image-1785057360433.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/eUF4fx0SwzIwatFO-image-1785057360433.png)


List outdated
```bash
mas outdated
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/scaled-1680-/bKSyf4XZdSvM8hCa-image-1785057944011.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/bKSyf4XZdSvM8hCa-image-1785057944011.png)


Upgrade
```bash
mas upgrade
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/scaled-1680-/HJVaT019Q8WKg1Rv-image-1785060401931.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/HJVaT019Q8WKg1Rv-image-1785060401931.png)


Applications are linked to different accounts need to be updated with correct user login

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/scaled-1680-/atY4aljKv8EQXnKx-image-1785066228207.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/atY4aljKv8EQXnKx-image-1785066228207.png)


After OS update, disable automatic updates, as they are turned on back automatically

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/scaled-1680-/m97uPVPH9Q6Lu2L9-image-1785073096112.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-07/m97uPVPH9Q6Lu2L9-image-1785073096112.png)






Verbosity not by design
```bash
log stream --info --debug --predicate 'process == "softwareupdated" OR process == "SoftwareUpdateNotificationManager" OR subsystem == "com.apple.SoftwareUpdate"'
```




AAaah, 'GarageBand' ?!

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/scaled-1680-/p1qugU76wgZbZTsI-image-1791176576318.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/p1qugU76wgZbZTsI-image-1791176576318.png)


`brew` had some old things
```bash
brew cleanup
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/scaled-1680-/5cjYyKq5Z8UhEa2E-image-1791176946324.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-10/5cjYyKq5Z8UhEa2E-image-1791176946324.png)

# Disable MacOS going to sleep

Use-cases
- let local Claud Code run with laptop lid closed, be connected to Internet via tethered mobile connection (via mobile phone) and with mobile Claude Code app, connect to the laptop to continue the session. That is useful in commuting, when carrying laptop.


Purpose: 
- let loads be running when Macbook's lid is closed and AC electricity is disconnected = carrying laptop in the bag / backup


Set
```bash
sudo pmset -a disablesleep 1
```

Verify
```bash
sudo pmset -g
```

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-09/scaled-1680-/NHdxw2YPsiGqtWjC-image-1789203763565.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-09/NHdxw2YPsiGqtWjC-image-1789203763565.png)


To enable "go to sleep"
```bash
sudo pmset -a disablesleep 0
```

Verify
```bash
sudo pmset -g
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-09/scaled-1680-/rxJLInoQdyrHXKMD-image-1789203816649.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-09/rxJLInoQdyrHXKMD-image-1789203816649.png)



There is another widely used application for this purpose, but upon it's naming, it will be avoided on this page.

Warnings:
- running laptop without sufficient colling might damage it
- author does not carry any responsibility on circumstances