diff -r 4e80fb049dca -r 2e4517b55442 src/lib.rs
--- a/src/lib.rs	Sun Apr 27 15:56:43 2025 -0500
+++ b/src/lib.rs	Sun Apr 27 20:41:36 2025 -0500
@@ -1,3 +1,5 @@
+// Version of lib.rs for stable builds.
+
 // The main documentation is in the README.
 #![doc = include_str!("../README.md")]
 // We use unicode. We would like to use much more of it than Rust allows.
@@ -5,14 +7,20 @@
 #![allow(uncommon_codepoints)]
 #![allow(mixed_script_confusables)]
 #![allow(confusable_idents)]
+// Extra setup for builds with the nightly compiler
 #![cfg_attr(
-    feature = "nightly",
-    feature(maybe_uninit_array_assume_init, maybe_uninit_slice),
-    feature(float_minimum_maximum),
-    feature(get_mut_unchecked),
-    feature(cow_is_borrowed)
+    nightly,
+    feature(
+        maybe_uninit_array_assume_init,
+        maybe_uninit_slice,
+        float_minimum_maximum,
+        get_mut_unchecked,
+        cow_is_borrowed
+    )
 )]
 
+#[macro_use]
+pub(crate) mod metaprogramming;
 pub mod collection;
 pub mod error;
 pub mod euclidean;
@@ -39,7 +47,6 @@
 pub mod linsolve;
 pub mod logger;
 pub mod mapping;
-pub(crate) mod metaprogramming;
 pub mod nalgebra_support;
 pub mod operator_arithmetic;
 pub mod sets;