With fulibWorkflows you have the possibility to model different workflows with their primary focus on gui, model or the general workflow.
In general, you can find events as described by Alberto Brandolini's Event Storming.
Besides those you can find a few additional events added for the proper display/generation.
It is also possible to generate very basic plain html guis using the events defined in GUI.
Furthermore, it is possible to define objects via the data event to generate object/classdiagrams.
More information can be found in Model.