diff --git a/src/interpreter/mod.rs b/src/interpreter/mod.rs
index b5c3d37..9294560 100644
--- a/src/interpreter/mod.rs
+++ b/src/interpreter/mod.rs
@@ -4,7 +4,7 @@
 //! 1. (Britain) To do a clumsy or inelegant job, usually as a temporary repair; mend, patch up, repair.
 //! 2. To work green wood using traditional country methods; to perform the craft of a bodger.
 //!
-//! A simple tree-walk interpreter intended for testing purposes.
-//! To be replaced by VM soon™️ :ferrisClueless:
+//! A simple silly compiler + VM intended for testing purposes.
+//! To be replaced by something better soon™️ :ferrisClueless:
 
 pub mod value;
diff --git a/src/interpreter/value/mod.rs b/src/interpreter/value/mod.rs
index 83b726f..fb5ffb0 100644
--- a/src/interpreter/value/mod.rs
+++ b/src/interpreter/value/mod.rs
@@ -23,9 +23,9 @@ pub enum Value<'s> {
     Keyword(Str<'s>),
     Number(OrderedF64),
     String(Str<'s>),
-    Function(Function<'s>),
+    Function(Rc<Function<'s>>),
     NativeFun(fn(&'s [Value<'s>]) -> Value<'s>),
-    Macro(Function<'s>),
+    Macro(Rc<Function<'s>>),
 }
 
 impl<'s> From<Spanned<Expr<'s>>> for Value<'s> {
diff --git a/src/interpreter/value/string.rs b/src/interpreter/value/string.rs
index a5b10fe..c759823 100644
--- a/src/interpreter/value/string.rs
+++ b/src/interpreter/value/string.rs
@@ -1,4 +1,4 @@
-use std::{fmt::Display, ops::Deref, rc::Rc};
+use std::{fmt::Display, ops::Deref, rc::Rc, hash::Hash};
 
 /// A Wisp string type which can hold two variants:
 /// - Borrowed (usually a reference to source code or built-in literal)
@@ -40,6 +40,12 @@ impl<'a> PartialEq for Str<'a> {
 
 impl<'a> Eq for Str<'a> {}
 
+impl<'a> Hash for Str<'a> {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        (**self).hash(state);
+    }
+}
+
 impl<'a> Display for Str<'a> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {