If you use Emacs you might find the ds4e project useful. It provides a few packages to use Docspell from within Emacs.
It is implemented as a wrapper to the cli tool, which must be installed first.
The ds4e is a collection of Emacs packages that provide mainly integrations into other Emacs packages, like mu4e, dired or dashboard.
ds4e-search package allows to search and view documents.
Please refer to the README for details.