I adapted @ThomasG77's 30 day challenge script into something that can be run from the Qgis processing toolbox.

Using Uber's H3 hex grid system in Qgis

https://github.com/maphew/code/tree/master/gis/qgis - h3-grid-from-layer.py

Usage

From Qgis:

1. Select a template layer in table of contents to get extent from
   1. Optionally select specific features
2. Processing tool box >> Open existing script: h3-grid-from-layer.py
3. OR: Plugins >> Python console >> Open editor >> load script: h3-grid-from-layer.py
4. Edit variables (particularly min/max resolution levels)
5. Run

There is an error message of "it seems there is no valid script to run", but it works anyway.

I adapted @ThomasG77's 30 day challenge script into something that can be run from the Qgis processing toolbox.

Using Uber's H3 hex grid system in Qgis

https://github.com/maphew/code/tree/master/gis/qgis - h3-grid-from-layer.py

Usage

after Preparation has been completed

From Qgis:

1. Select a template layer in table of contents to get extent from
   1. Optionally select specific features
2. Processing tool box >> Open existing script: h3-grid-from-layer.py
3. OR: Plugins >> Python console >> Open editor >> load script: h3-grid-from-layer.py
4. Edit variables (particularly min/max resolution levels)
5. Run

There is an error message of "it seems there is no valid script to run", but it works anyway.