I can't speak to data centric but I was looking at both Rust and Nim for a project recently. I love the syntax of Nim and it feels incredibly easy to write in. The power of the macro system is amazing.
But the Rust community is so much bigger, pretty much every question I had was answered after a quick Google search.
I agree. I really struggled to get help with certain problems with Nim, but with Rust it has been fairly trivial to find help. The community is very active and helpful.
Nim does have a syntax I prefer more, but overall I find I’m quite a bit more productive with Rust.
The most effective venue for quick Nim answers is the Nim forum - almost everything gets a serious well thought out answer within a few hours to a day.
That said, nothing beats “already been answered” and the Rust community is much bigger.
But the Rust community is so much bigger, pretty much every question I had was answered after a quick Google search.