Hi there!
I was at an EduTech conference recently and got to try out Gamma - I am blown away way in some respects but something I would love to see integrated is pulling from Wikimedia Commons for images - for instance, I wanted to create a folklore post here but things got weird and militarized at the end. There was no option for me to add a URL or source for images - but if there was or if you could add an option from Wikimedia commons (and just set it to add a small text image credit with CC 4.0 share with Attribution) you have all the Meta Data there from the upload data and images are often tagged in categories already.
Here is the project I was working on ^^
Feel free to reach out to me to discuss more