Sill shows a window from your Mac, or the whole desktop, on your iPhone or iPad. You use it there with touch, a trackpad, a keyboard or Apple Pencil. Sill for Mac captures the window, encodes it as HEVC video and sends it to the Sill app on your device. Your taps, clicks, scrolls and keys go back to your Mac. Your Mac and your device connect on the same network, over a USB cable, with Direct Wireless Connection when they share no network, or through your own VPN, such as Tailscale, with Remote Access. There is no account and no server in between.
Sill for Mac is a free, notarized download from getsill.app; with Homebrew, brew install --cask saffsanity/sill/sill installs the same download from Sill's own tap. Sill for iPhone and iPad is free on the App Store, and you can also build it from source (below).
