I have a few things that might fit a user story - but also some more freeform feedback too -
I'm excited to see some effort and thought going into this area - although early discussions sounds like a lot of technology work where I think there is a solid base already.
To backup Joergs point as well - I want to use github/gitlab etc. for my open source projects - leveraging what is already there makes it easier to find resources, help and allows me to translate my experience between languages. There should really only be LabVIEW specific elements where that is absolutely necessary IMHO.
Discoverability is kind of interesting - but when all the other package managers already have sites for this, it doesn't feel like very low hanging fruit.
Pushing collaboration feels like a great approach. Getting more people owning code and publishing it in a way that people can collaborate feels like something that is lacking. There are so many projects that appear as forum posts or packages on the tools network that lack a public issue tracker, code repo and other things that can impact collaboration. Better still this is mostly an education play requiring less investment and can leverage loads of great existing resources like opensource.guide.
Having a non-gated repo would be of interest though - even if you can just link to a package to simplify the infrastructure that would be a great start.