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Sticky Hours

Easily find common schedule gaps

MrStickyPiston ✓ Verified

io.github.mrstickypiston.stickyhours
View on Flathub ↗

Sticky Hours is an app designed to find common gaps in secondary school schedules. Useful for finding time to speak someone or work on a project. Do note that the app requires that your school uses Zermelo to schedule, and you need access to it. Sticky Hours is an unofficial app using the Zermelo api and not associated with Zermelo.

For help with logging in, please take a look at the faq on the website.

The app uses GTK for the ui, so you can apply any GTK theme to the app. To do that you will need to allow the flatpak to access the GTK themes folder. The GTK themes folder is ~/.themes for user installed themes, or xdg-config/gtk-3.0 for package installed themes. This value will be referenced as INSERT_GTK_THEMES_FOLDER later on. If you installed the flatpak system-wide, run the following command: sudo flatpak override --filesystem=INSERT_GTK_THEMES_FOLDER If installed Sticky Hours for only one user, run flatpak override --user --filesystem=INSERT_GTK_THEMES_FOLDER

Screenshots

The main menu with one selected user with default settings.
The main menu with one selected user with default settings.
The main menu with two selected users with default settings.
The main menu with two selected users with default settings.
The login menu with default settings.
The login menu with default settings.
The main menu with one selected user with Breeze-Dark theme
The main menu with one selected user with Breeze-Dark theme
The main menu with two selected users with Breeze-Dark theme
The main menu with two selected users with Breeze-Dark theme
The login menu with Breeze-Dark theme.
The login menu with Breeze-Dark theme.

Observed history

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Upstream releases

Release notes supplied by the developer. These dates are not Flathub package publication times.

1.1.49 Aug 2026

Sticky Hours 1.1.4

  • Bump python to 3.13
  • Fix sometimes not fetching all appointments
1.1.35 Dec 2024

Sticky Hours 1.1.3

  • Fix an error with timeslotless appointments
  • Fix not starting up when the locale variables are not set properly
1.1.212 Nov 2024

Sticky Hours 1.1.2

  • Fixed the program crashing when the token was invalid
1.1.121 Oct 2024

Sticky Hours 1.1.1

  • Performance optimizations