Just a quick note, as this seems not to be mentioned anywhere so far:
macOS High Sierra beta is booting successfully from an external APFS formatted SSD disk. Read the full story here.
Turns out that Apple has hidden the option to allow launching Apps downloaded from «Anywhere» since macOS Sierra.
Here is a summary how you can restore this feature or whitelist specific single Apps within Gatekeeper – the application responsible for app security in macOS.
This Unix Bash Shell script was designed to fetch a list of website URLs using curl, returning – upon success – the HTTP status code and the final URL retrieved following redirects.
When you drag’n’droped the Spotlight search bar in macOS, it can be put back at it’s original position with a simple click.
Update Feb-2017: as @jsfaq kindly pointed out on Twitter, this recording error also effects regular Movie Recording in QuickTime! There is a unfixed Screen Recording bug in QuickTime Player for macOS affecting even the most recent versions like macOS Sierra 10.12:…
To help you with getting the maximum throughput speed out of your Wi-Fi network, here are a few recommendations how you should configure it.
In macOS you can use the built-in Wi-Fi Scan from the Wireless Diagnostics.app to find the best possible or least busy channels and bandwidth frequencies for your own Wi-Fi (or there is the open source tool KisMac2 to do the same).
When you are running a local copy of Wordpress in a MAMP development environment on your Mac, you might have run into troubles with Wordpress being “stuck” in maintenance mode after trying to update Wordpress (plugins, themes or core updates). In order to fix this – and have your precious Wordpress updates run through smoothly again locally – you can use a chmod-command with the Terminal.app in macOS.