PostNote

About

PostNote is a modern, high-performance note-taking application for Linux, written in Go with native Wayland support. Inspired by the work of Umang Varma (Indicator Stickynotes), PostNote offers convenient management of multiple notes through a system tray indicator.

Wayland

X11

Features

• System tray indicator for sticky notes
• Multiple notes with category support
• Customizable colors and fonts per category
• Lock/unlock notes to prevent accidental editing
• Export/import note data
• Keyboard shortcuts (Ctrl+W: Delete, Ctrl+L: Lock, Ctrl+N: New)
• Note button designs can be changed to suit your preference
• Allow one small image to be pasted into the note (one image per note)
• Wayland support for position saving and restoration with GNOME extension
• Wayland support for "Always on top" feature, Hide/Show notes
• All resources are embedded in the binary for portability

Wayland Support

With the extension installed:

• Window positions are automatically tracked and saved
• Notes restore to their previous positions on restart
• Position updates happen in real-time as windows are moved

Without the extension (or on X11):

• On X11: Window positions work normally using GTK methods
• On Wayland without extension: Window positions cannot be saved (Wayland security limitation)

Requirements

GNOME Extension (for Wayland)

APT Packages (Ubuntu/Debian)

Required packages for running the application (usually pre-installed):

Limitations

• Wayland window positioning: Requires the window-calls GNOME extension. Without it, window positions cannot be saved on Wayland (this is a Wayland security limitation, not a bug).
• System dependencies: It uses system GTK libraries (not bundled), so GTK3 and Ayatana AppIndicator must be installed on the target system.
• Desktop environment: Currently optimized for GNOME desktop environment with AppIndicator support.

Technology

PostNote is written in Go using:

• GTK3 for the graphical user interface
• Ayatana AppIndicator for system tray integration
• CGO for C library bindings
• Go's embed package for bundling resources

Shareware / Honorware Copyright Notice

Copyright © 2026 Runable.app. All rights reserved.

This software is distributed as shareware (honorware).
It is not public domain and not open source.

Permission is granted to copy and redistribute this software free of charge, provided that it is distributed only in its original, unmodified form and that no fee is charged for its distribution.

The software may be used without time limitation for personal, non-commercial purposes.
Payment of a license fee is voluntary but encouraged to support continued development.

Commercial use of this software requires the purchase of a commercial license.

Modification, reverse engineering, decompilation, or redistribution of modified versions is strictly prohibited without prior written permission from the copyright holder.

This software is provided “as is”, without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement.

In no event shall the copyright holder be liable for any claim, damages, or other liability, whether in an action of contract, tort, or otherwise, arising from, out of, or in connection with the software or the use or other dealings in the software.

This copyright notice applies worldwide.