Enzi — A Customizable Notch for Windows

Enzi on the desktop: the notch open on the music player, with the floating to-do widget

// 01 / THE STORY

Why this was built.

The challenge

Windows has no glanceable place for what matters right now, like the playing song, a focus timer or the next meeting, without opening apps or covering what you're working on.

The approach

A transparent, always-on-top Tauri window only captures the mouse over the visible notch, tucks away when a browser reaches the top, and hides in full screen. A small Rust backend talks to Windows media, clipboard, Bluetooth and drag-and-drop APIs.

What it delivers

A 2.4 MB app with no runtime to install, every module switchable and re-themable, privacy-respecting clipboard history, and signed auto-updates.

// 02

Key capabilities

Everything opens from one hover at the top of the screen.

A slim notch at the top of the screen that opens on hover and gets out of the way
Now playing from Spotify, browsers and any app using Windows media controls
Synced lyrics from LRCLIB with an adjustable timing offset
Pomodoro focus timer with breaks, a chime and a daily session count
To-do list with an always-on-top floating widget
Drag-and-drop file shelf with real image previews
Drop an image to convert it to PNG, JPG or WebP
Searchable clipboard history that skips password managers' private copies
Quick actions: screenshot, mute mic, screen color picker, quiet mode, lock PC
Popups for volume, Caps Lock, charger, network and Bluetooth battery
Eight color palettes or custom colors, glow and corner roundness
Signed auto-updates built by GitHub Actions

// 03

Inside the notch

Music tab with album art, controls, volume and synced lyrics

Focus timer with a progress ring and the current task

File shelf with image previews and file-type tiles

Clipboard history with search and an image preview

Quick actions: screenshot, microphone, color picker, quiet mode and lock PC

The to-do tab in the pink Sakura palette

// 04

Architecture

About 2,300 lines of Rust and 3,600 of HTML, CSS and JavaScript.

App shell: Tauri 2 (tao, wry) on the WebView2 built into Windows
Backend: Rust with the windows crate (Win32 and WinRT), image, webp, arboard, ureq
Interface: Vanilla JavaScript, CSS custom properties for theming, inline SVG icons
Data: Local JSON in %APPDATA%; weather from Open-Meteo, lyrics from LRCLIB
Delivery: 2.4 MB NSIS installer, GitHub Actions releases, signed updates

// OPEN SOURCE

Try Enzi on your PC

Download