wip: database checker

ui/viewmodels/overview.py

@@ -0,0 +1,21 @@
+from PySide6.QtCore import Property, QObject, Signal
+from PySide6.QtQml import QmlElement
+
+from .common import VM_QML_IMPORT_NAME
+
+QML_IMPORT_NAME = VM_QML_IMPORT_NAME
+QML_IMPORT_MAJOR_VERSION = 1
+QML_IMPORT_MINOR_VERSION = 0
+
+
+@QmlElement
+class OverviewViewModel(QObject):
+    _void = Signal()
+
+    def __init__(self):
+        super().__init__()
+
+    def get_b30(self):
+        return 0
+
+    b30 = Property(float, get_b30, None, notify=_void)