Yeah true. I'm also changing the ASP.NET and C# code to NodeJs and moving away from Azure (which I relied on their queue service before) to another cloud platform.
It's going well and to be honest a lot easier than I expected.
I am of the opinion that it would be more nice and kind of being more clients conscious if you can try to notify the community if there will be any upgrade on this site and why its going to offline for a particular period of time and when its going to be back online this will save unnecessary speculations in a case where you are not available to respond to enquiries raised by user who visited during down times.