Get the Meridian desktop app. Select your platform below — we'll try to recommend the right version automatically.
Click the Apple menu () in the top-left corner and choose About This Mac. If you see "Chip: Apple M1/M2/M3/M4", choose Apple Silicon. If you see "Processor: Intel …", choose Intel. Not sure? The Apple Silicon version is correct for any Mac bought in 2021 or later (excluding refurbishments of older models).
On macOS, after opening the downloaded archive, drag the app into your Applications folder. If Gatekeeper warns about an unidentified developer, right-click the app and choose Open. On Windows, run the installer and follow the prompts — no administrator rights are required.