Sill streams any Mac window to your iPhone or iPad with touch and Apple Pencil

Any window from your Mac, on your iPhone and iPad

Sill is a free, open-source tool that shows any Mac window or the entire desktop on an iPhone or iPad. It captures the window with ScreenCaptureKit, encodes it as HEVC, and sends it over an encrypted connection with no server or account. You control the Mac with touch, trackpad, keyboard, or Apple Pencil. It works over local network, USB, direct Wi-Fi, or your own VPN like Tailscale.