some additions to this guide are probably necessary, as some things have changed over time: 1. use `https://api.ohsome.org/v1/` (instead of `/v0.9/`) in the ohsome API requests above. 2. if you are using QGIS 3.14 or later, the time manager plugin has been replaced with the built-in temporal controller feature of QGIS (see https://anitagraser.com/2020/05/10/timemanager-is-dead-long-live-the-temporal-controller/). Here's a nice video explaining some tricks for how to work with the new UI: https://www.youtube.com/watch?v=vgDg5cRwPRw