Is Rust’s steep learning curve still a problem in 2025, or has the ecosystem matured enough to ease newcomers in?
Pre-1.0, Rust looked terrifying:
fn main() { // Owned box (heap allocation), the '~' symbol has been removed in modern Rust let mut x: ~int = ~10; // 'mut' was also a property of the field/binding // Reference counted pointer, '@' has also been removed for ownership semantics let y: @int = @20; // A pure function declaration (pure was a keyword) pure fn add(a: int, b: int) -> int { ret a + b; // 'ret' was used instead of 'return' } log(fmt!("%d + %d = %d", *x, *y, add(*x, *y))); // Lifetimes were indicated with a '\' instead of '\'' // e.g., fn get_str(s: \&str) -> \&str { s } }
And we talked about memory a lot. So you might fear running into code like this:
#![allow(unused)] fn main() { fn allocate_memory_with_rust() { use std::alloc::{alloc, dealloc, Layout}; unsafe { // Allocate memory with Rust. It's safer to force alignment. let layout = Layout::new::<u16>(); let ptr = alloc(layout); // Set the allocated variable - dereference the pointer and set to 42 *ptr = 42; assert_eq!(42, *ptr); // Free the memory - this is not automatic dealloc(ptr, layout); } } }
Here's the good news: unless you're writing really deep library code (which you won't be, if you just started!) - Rust looks more like this:
use axum::{routing::get, Router}; #[tokio::main] async fn main() { let listener = tokio::net::TcpListener::bind("127.0.0.1:3001").await.unwrap(); let app = Router::new() .route("/", get(say_hello)); axum::serve(listener, app).await.unwrap(); } async fn say_hello() -> &'static str { "Hello, World!" }
That's a complete, working webserver. It looks a lot like Express and other webservers. Rust scales with you. It's really easy to get started making something useful.