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diff --git a/presentation.md b/presentation.md
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@@ -1643,6 +1643,30 @@ count: false
 
 ---
 
+count: false
+
+## The Rust software ecosystem
+
+- `rustc` and `cargo`
+- `crates.io`
+- `clippy`
+- `rustfmt` (and `cargo fmt`)
+- `rustdoc` (and `cargo doc`)
+- ... culminating in `https://docs.rs/`
+- `#[cfg(test)]`, `#[test]`, `tests/*.rs`, and `cargo test`
+- `cargo fix`
+
+???
+
+- Rust compiler errors, warnings, lints, etc often come with recommendation on
+  on how to fix them. For example adding or removing references.
+- Where those are mechanically applicable, the information is provided to the
+  tooling, and `cargo fix` can apply these updates
+- This reduces the cognitive load of resolving warnings and lints and therefore
+  result in more consistent quality of code across crates.
+
+---
+
 ## Installing Rust
 
 ???