If you’re doing local development on your Mac and you’re always getting SSL warnings (or maybe the local site won’t load at all in Safari), use the following instructions to make the SSL certificate for the local site always trusted by your Mac. In the address bar, click the little lock with the X. This…

For example, when doing $ sudo nano /etc/hosts in the Terminal on Mac. Move cursor to start of line and type Ctrl + K Repeat (Type Ctrl + X to quit)

Shift-click the refresh button, or choose View → Reload Page From Origin (⌥⌘R) to refresh ignoring cached resources for the current domain. You can observe the effect in the Web Inspector’s Network tab. What I suspect is catching you out here is how a force refresh only bypasses cache for the same domain as the…

If I restart in the activity window coreaudiod then the sound comes back. Source: Audio/Sound fails in macOS Catalina – Apple Community

Source: macos – Adjust width of spacer between Mac OS dock icons – Ask Different