Maintaining VBA code is probably easier than maintaining C code. You have all the tools to structure things nicely. You even have classes. One problem is that you can’t version control Excel or Access code. I think that’s the biggest weakness.
I found this gem: https://www.xltrail.com/ – I have not used it yet but from the looks it‘s a great solution to our vicious circle of (no) maintenance at work :D
What did your build/release pipeline look like? I'm imagining a lot of that would have had to be custom, just because I've never heard of this being done with VBA.
