JordiGH, This is the first time I work for a company that I actively want to personally advertise for, but I really like what #Grist does. It's like a #spreadsheet that's really a #database and lets you use #Python as a computational language. And it's all open source!
Have some links!
https://github.com/gristlabs/grist-core
And have some marketing materials!
The drafts were really good too:
https://docs.google.com/presentation/d/1kzmv4o2ZqRYeWPq_Y9LkS50whzcMrL_gn1zoV6EnJQA/