An error occurred while saving the commentAndrew Malcolmson commented
@Marica - nativefier worked for me. Running Gnome on Fedora Linux. I did have to create a .desktop file for Checkvist to appear in the application menus.
@Kirill - running Checkvist as a native app means I can get to it more easily with Alt-Tab, opening it as window that remembers its size rather than in a browser tab, and having its own icon in the Gnome Dash (aka Dock on a Mac).