As someone who works at a company that uses Drones to do NDVI, look into EVI. And getting a proper calibration plate, or a light sensor you understand, will allow you to make the results much more accurate.
I'm not familiar with EVI
Here's a blog post we made to explain the difference, the jist is NDVI can change throughout the day while EVI is more stable: https://skysquirrel.ca/2017/07/evi-vs-ndvi-whats-difference/
"The following spectral indices were examined: Difference Vegetation Index (DVI), Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Difference Water Index (DWI), Normalized Difference Water Index (NDWI), Difference Drought Index (DDI) and Normalized Difference Drought Index (NDDI). "
https://www.degruyter.com/downloadpdf/j/jengeo.2015.8.issue-...
Have you toyed already with Sentinel-2 NDVI? There's a free API: https://scihub.copernicus.eu/twiki/do/view/SciHubWebPortal/A...
It would be interesting for instance to have a cron job warn you if the values get too low, etc.
Although tech in Belgium isn't as well paid/rockstar-ish as the rest of Western Europe, that's a bit much.
Where were you living, what were you earning?
I remember having a part time job.
All kidding aside, I can tell you aren’t American based on that statement alone.
I worked at that agency for four years and did perhaps two weekends of overtime. Bliss. It can be done, and in an agency environment with client expectations.