Click the "Download" button to download the font suite (usually a .dmg file, which contains the .ttf or .otf files).
According to the Apple Font License Agreement, these fonts are meant for creating mockups and designing apps for Apple platforms, not for general distribution or non-Apple projects [1].
Open the downloaded file, locate the "SF Pro" or "SF Compact" folder, and install the Regular font variant on your system [1].
Navigate directly to the Apple Developer Fonts page [1].
Choose SF Pro or SF Compact depending on your needs.
