This repository (script really) implements a free opensource Flask based Dashboard in Python, based on the Plotly Graphing Library
Commercially available Dashboarding Tools like Google LookerStudio, Google Looker, Tableau, Power BI cannot be used for Free for personal visualization projects. Also, they only offer a limited range of visualizations. Opensource dashboards are much more flexible, provide many more visualization alternatives and is Free!!
For example, Page 2 of the Dashboard visualizes a Seasonal Decomposition Model for isolating the actual trends of a Time Series