My own thing. https://github.com/andrey-utkin/taskdb/wiki/Live-demo https://github.com/andrey-utkin/taskdb/wiki/Live-demo I can manage items in calendaring ap

My own thing. https://github.com/andrey-utkin/taskdb/wiki/Live-demo https://github.com/andrey-utkin/taskdb/wiki/Live-demo I can manage items in calendaring apps and in SQL editor, and visualize various diagrams.