deepin desktop environment

You can try and add the repositories from deepin, as suggested here:
https://www.quora.com/How-do-I-install-Deepin-DE-on-Ubuntu-15-04
You can also try to add the ppa: sudo add-apt-repository ppa:leaeasy/dde
You can find more about this ppa here:
https://launchpad.net/~leaeasy/+archive/ubuntu/dde

As common here, the warning is the same: I do not know if there is proprietary software in any of these (knowing deepin it most likely has), nor can I guarantee it will not have any proprietary software in the future.

If you succeed post a screenshot. Deepin de is rally beautiful, and many here are concerned about the beauty of the de. See how it goes, right?

this person did it on ubuntu 14.04, which trisquel 7 is based on:
https://linoxide.com/ubuntu-how-to/install-deepin-desktop-environment-derivatives-ubuntu/