Windows Installation (Download "Minecraft.Note.Block.Studio.exe.zip")
Download and extract the ZIP. Run the executable, and it will install the application to a directory of your choosing. Requires administrative privileges to launch the installer. Once installed, a start menu shortcut should be added to your system. If you aren't an administrator on your machine, you'll need password input from one.
Macintosh Installation (Download "Minecraft.Note.Block.Studio.app.zip")
After downloading, extract the ZIP to your "Downloads" folder, (happens automatically under Safari). Then, enter the following command into the terminal to allow the app to run without me needing to codesign or notarize it, (costs $100/year and I'm not wasting my money when you could just learn how to use a terminal emulator):
xattr -d -r com.apple.quarantine $HOME/Downloads/Minecraft\ Note\ Block\ Studio.app && cd $HOME/Downloads/Minecraft\ Note\ Block\ Studio.app/Contents/Resources && $HOME/Downloads/Minecraft\ Note\ Block\ Studio.app/Contents/MacOS/Mac_Runner
Linux Installation (Download "Minecraft.Note.Block.Studio.AppImage.zip")
It's an AppImage, so it is distro-agnostic, however, built specifically for Intel and AMD based platforms. Should just be a matter of extracting the ZIP and then run with a double-click, (or a single-click depending on Desktop Environment or Window Manger configuration). Ubuntu 22.04 LTS GNOME is officially supported/recommended.