Windows users: There is no installer. Open or extract the ZIP, copy Polarity-SC-Dark.clap to C:\Program Files\Common Files\CLAP, and copy Polarity-SC-Dark.vst3 to C:\Program Files\Common Files\VST3. Full steps: Windows install guide. 
https://polarity.productions/polarity-sc/windows-install.html

macOS users: Polarity-SC-Dark is currently unsigned, so Gatekeeper may block it on first launch. Use the macOS install guide for step-by-step methods via System Settings, right-click Open, or Terminal.
https://polarity.productions/polarity-sc/macos-install.html

Linux users: Copy the .vst3 bundle or .clap file into your plugin folder, then rescan the DAW. Full steps: Linux install guide.
https://polarity.productions/polarity-sc/linux-install.html
