---
title: FlipClock
url: https://nandomoreira.dev/en/lab/flipclock-app
collection: lab
tech:
  - Go
  - Fyne
  - OpenGL
date: 2026-04-01
---

# FlipClock

Flip clock for the desktop, built in Go with Fyne, with a two-phase flip animation, a fullscreen mode and a screensaver mode that covers every connected monitor. The font is embedded in the binary, so the app runs with no external file dependency.

## Problem

Desktop flip clocks are usually a web page open in a tab or a heavy app from
another platform. I wanted a small native binary that sat in the tray and
turned into a screensaver on every monitor.

## Decisions

Go with Fyne, for a single binary with no runtime and the same base on Linux
and Windows. The Bebas Neue font is embedded in the executable, so the look
does not depend on the system. In screensaver mode, each monitor gets its own
window, all synced to the same second and closed together by any key. On
Wayland the compositor positions windows, and the README documents that
limitation instead of hiding it.

## Outcome

Two releases published, with .deb and .zip packages for Linux (x86_64 and
ARM64) and a .zip for Windows. Personal use on the desktop. Three stars on
GitHub, which is one-off interest and not traction.

## Links

- Repo: https://github.com/nandomoreirame/flipclock-app