@oivva @ihodev [2 user accounts here, presumably 1 is more recent]
I too was a bit worried and thought maybe he'd died or something tragic. BUT...
He posted this on GitHub 3 days ago, so he seems to be alive at least.
Also I expect he can be contacted through LinkedIn.
It was a great shame that his EXCELLENT ST packages were removed by the deletion of his GitHub Repos instead of simply leaving them in place and stopping work on them. Perhaps his employer complained he was focusing too much on his private projects and gave him some kind of ultimatum, or something similar that forced his hand. After all he put a huge amount of work into his ST packages, and to suddenly delete the repos seems quite extreme.
Perhaps we, those interested in doing so, should contact him and ask if he were willing to pass on the latest files of Boxy, DA UI, etc.. New repos could be created for the packages and Package Control updated.
Although the work I did on Boxy was tiny in comparison to his, I did create the Numix colour scheme for Boxy, along with the ability to change the minimap's viewport opacity, probably in total 6-8 hours work. I'm a huge fan of the Boxy theme and am sorry to see it gone. I never got around to DA UI but always intended to give it a try when it got nearer to coming out of Beta or got a 'non-experimental' release.
Perhaps ihodev will reply in this thread, although it seems likely that he's stopped reading this forum.