Please install Deck
After a cursory review by Richard, we think Deck would be good to have installed.
I'm not a php or js expert, but it's pretty straight forwardly written.
Nothing pops out as sketchy or dangerous, and there seems to be a healthy dev process surrounding the app on github.
Nothing sketchy or dangerous apart from the fact that it uses npm, but the tasks app also has this problem.
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information