Flip Clock Screensaver

A macOS screensaver: a split-flap "airport" style clock in pyneo orange on a black screen. The pyneo logo sits off the clock's bottom-right corner, and both jump to a new random spot every 20 seconds.

Features

• HH:MM split-flap tiles (24-hour) with a flip animation when a digit changes
• Jumps to a new random position every 20 seconds, always fully on screen
• Low power: sleeps between events and only redraws when something changes
• Universal binary (Apple Silicon + Intel), macOS 13 or later

Build and install

Requires the Xcode Command Line Tools (xcode-select --install).

./build.sh            # build to build/FlipClock.saver
./build.sh install    # build and copy to ~/Library/Screen Savers

Then open System Settings → Screen Saver and choose Flip Clock. If an old version still shows, close and reopen System Settings.

Customize

Settings at the top of Sources/FlipClockView.swift:

Setting	Default	What it does
use24Hour	true	24-hour or 12-hour time
flipDuration	0.6	Length of the flip animation (s)
moveInterval	20	Seconds between position jumps
digitColor	#F3A900	Digit and colon color

Logo size and distance from the clock are set in logoRect(). Run ./build.sh install after any change.

Files

• Sources/FlipClockView.swift: the screensaver code
• Info.plist: bundle info
• pyneo.png: logo, copied into the bundle at build time
• build.sh: build and install script

Uninstall

rm -rf ~/Library/Screen\ Savers/FlipClock.saver