I don't know how I got to this site, but it worth the attention from the Duolingo creators and community.
Duolingo has been doing a great effort to bring these languages back from centuries of colonization. Guarani, Irish, Welsh, Catalan, (?)... Cherokee language would be a great addition.
Probably as well the Cherokee nation would be more than willing to contribute. But that I don't know.
If I recall Duolingo actually wanted to work with the US Gov to get some indigenous languages on here but it got too political, I still hope they do build these courses sometime in the future.
Cherokee is such a wonderful language worth preserving!
When TinyCards first came out I created a deck for the Cherokee syllabary: https://tinycards.duolingo.com/decks/30604249-40e2-4e55-a123-7b391e0efe28
There is also a Cherokee course on Mango, if you happen to live near a library that offers it.
TBF, to be fair Welsh is used in places except Wales, (Argentina) but I get what you're saying.
Irish, for one thing, is not well-traveled. Guarani is used in a vast majority of South America but not on any other continent. Estonian I imagine is present in some parts of Finland and Russia.
(Just to be a smart-alec.)
I don't know much about the spread of Cherokee speakers, but I live in Eastern Oklahoma, and here there is a very strong Cherokee presence, even outside of the Nation itself. Besides the Creek, the Cherokee Nation is one of the most visible Indian Nations in Eastern Oklahoma for sure. Lots of people whose families have lived here for generations have some Cherokee ancestors somewhere down the line, including myself. So here, at least, where the culture is centered, it is visible and is beginning to thrive again. There is very much a demand for good Cherokee language materials.