If it’s a simple CRUD backend + database, then there’s really no reason to use Rust except if you just want to.
I did this. Further reasons are: correctness and performance.
Rust is much faster while at the same time using a fraction of the resources the equivalent Spring Boot implementation would use. The type safety and being freed from runtime errors is awesome as well. Yes initial development takes longer, but I believe it is worth it. Most projects spend maybe 2% on initial development, 98% is bugfixing, troubleshooting, refactoring. I am confident Rust cuts down on bugfixing by 2/3, which means doubling the initial dev time is well worth it. And it doesn’t even take twice as long.
Agreed!