It looks like you're interested in downloading and learning more about OBS Studio, a popular live streaming software.

Let me help you with that!

Firstly, I noticed that you mentioned downloading OBS Studio for Mac, specifically version 30.0.0. You can download the latest version of OBS Studio from their official website: 'OBS Studio - Homepage'(https://obsproject.com/).

On this page, you'll find links to download the software for Windows, Mac, or Linux. Make sure to choose the correct operating system for your MacBook Air 2020.

Additionally, I noticed that you mentioned a PTZ camera control panel plugin for OBS Studio. You can find more information about this plugin on GitHub: 'obs-ndi/obs-ndi'(https://github.com/obs-ndi/obs-ndi).

If you're new to OBS Studio, I recommend checking out their help guide and tutorials to get started quickly. The help guide is available in PDF format: 'Open Broadcaster Software Studio Multiplatform Help Guide'(https://obsproject.com/wiki/help-guide.pdf).

Finally, if you have any questions or need further assistance with setting up OBS Studio on your MacBook Air 2020, feel free to ask!

OBS Studio 30.0.0 for mac download