Description of problem:
I think this has a missing dependency on libdazzle.

Version-Release number of selected component:
cozy-1.1.2-1.fc34

Additional info:
reporter:       libreport-2.15.2
cgroup:         0::/user.slice/user-1000.slice/user/app.slice/app-com.github.geigi.cozy-efe52ed6c44a41e7af1cc802d492a839.scope
cmdline:        /usr/bin/python3 /usr/bin/com.github.geigi.cozy
crash_function: require_version
exception_type: ValueError
executable:     /usr/bin/com.github.geigi.cozy
interpreter:    python3-3.9.7-1.fc34.x86_64
kernel:         5.14.9-200.fc34.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
__init__.py:126:require_version:ValueError: Namespace Dazzle not available

Traceback (most recent call last):
  File "/usr/bin/com.github.geigi.cozy", line 130, in <module>
    from cozy.application import Application
  File "/usr/lib/python3.9/site-packages/cozy/application.py", line 21, in <module>
    from cozy.app_controller import AppController
  File "/usr/lib/python3.9/site-packages/cozy/app_controller.py", line 24, in <module>
    from cozy.ui.headerbar import Headerbar
  File "/usr/lib/python3.9/site-packages/cozy/ui/headerbar.py", line 10, in <module>
    gi.require_version('Dazzle', '1.0')
  File "/usr/lib64/python3.9/site-packages/gi/__init__.py", line 126, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Dazzle not available

Local variables in innermost frame:
namespace: 'Dazzle'
version: '1.0'
repository: <gi.Repository object at 0x7fc7b3137bb0>
available_versions: []