Jupyter Notebook vim plugin copypaste
Things that I selected with vim keybindings can be copypasted with usual qutebrowser keybindings (or mouse).
Libreoffice calc search by regex
You can do it if you go in the find-and-replace dialog. Checkbox -> search all
.. is surprisingly hard and implementation-dependant. You can always iterate and look for the not-matched things.
[^aeo] doesn’t really work for capturing groups.