Since Cockpit plugins are now easy to develop after Camunda 7.14.0, I’ve been writing simple plugins for myself to give some visibility into completed activities and processes. Last year, when really learning Camunda myself, “disappearing completed processes” on Cockpit was my greatest source of frustration in learning and and trying out BPMN with Camunda.
A small writing at: https://datakurre.pandala.org/2021/01/camunda-cockpit-history-plugin/
Source and built bundles at: https://github.com/datakurre/camunda-cockpit-plugins/
The current featureset is quite minimal with missing pieces everywhere, but I assume that I keep updating those while require more and better features myself during this year.