The thing I like most about UnRAID is how easy it is to manage growing/evolving storage (i.e. swap drives out of/into the array, grow my storage over time without worrying about losing anything!)
My 2020 top feature request - GUI support for Docker Networking, i.e. a page to create docker networks in the GUI, then go into an app and be able to select which of those docker networks each app is part of - similar to what is typically done in a single docker compose file that contains for example, web, app and db docker images. My ultimate implementation of this would be to merge dockerman with docker compose so that docker compose is "how" you do docker on UnRAID but the most important part for me is sane, gui-based management of docker networks. I'd also be happy to see this implemented as Docker Swarm instead, but... baby steps.
Note: I'm fully aware of the ability to run docker compose after installing the nerd pack, I'm working on that now. It's the GUI/native integration that I'm after like a lot of users. It's in big part what draws us to UnRAID in the first place.
Once this is implemented in 2020, lets make 2021 the year of HA between multiple UnRAID boxes with support for an overlay k8s management suite for the docker/apps portion! I own a pro license. I'd happily buy 2 more tomorrow if I could easily cluster the 3 for redundancy for all of my apps (VMs and storage would be great, too).
Keep up the awesome work, guys & happy new year!