diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 1208f767e..78bbf8b9a 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -94,7 +94,7 @@ jobs:
             tags: not @library
           - name: stak-tools
           - name: mstak
-            tags: not @command-line and not @environment-variable and not @library
+            tags: not @environment-variable and not @library
           - name: mstak-tools
             tags: not @environment-variable
         exclude:
diff --git a/Cargo.lock b/Cargo.lock
index 42c6ad3ad..c23268df1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -620,6 +620,7 @@ name = "stak-sac"
 version = "0.1.44"
 dependencies = [
  "clap",
+ "libc",
  "main_error",
  "stak-configuration",
  "stak-device",
@@ -627,9 +628,17 @@ dependencies = [
  "stak-macro",
  "stak-primitive",
  "stak-process-context",
+ "stak-util",
  "stak-vm",
 ]
 
+[[package]]
+name = "stak-util"
+version = "0.1.18"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "stak-vm"
 version = "0.5.0"
diff --git a/Cargo.toml b/Cargo.toml
index 8ebff89b1..5f36276e0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,6 +22,7 @@ members = [
   "process_context",
   "profiler",
   "sac",
+  "util",
   "vm",
   "wasm",
 ]
@@ -61,6 +62,12 @@ codegen-units = 1
 lto = true
 panic = "abort"
 
+[profile.release_test]
+inherits = "release"
+debug = "line-tables-only"
+debug-assertions = true
+overflow-checks = true
+
 [profile.dev.build-override]
 opt-level = 3
 debug-assertions = false
@@ -71,8 +78,7 @@ opt-level = 3
 debug-assertions = false
 overflow-checks = false
 
-[profile.release_test]
-inherits = "release"
-debug = "line-tables-only"
-debug-assertions = true
-overflow-checks = true
+[profile.release_test.build-override]
+opt-level = 3
+debug-assertions = false
+overflow-checks = false
diff --git a/cmd/compile/Cargo.toml b/cmd/compile/Cargo.toml
index 09211d89e..5264d0b9c 100644
--- a/cmd/compile/Cargo.toml
+++ b/cmd/compile/Cargo.toml
@@ -9,7 +9,7 @@ readme.workspace = true
 repository.workspace = true
 
 [dependencies]
-stak-sac = { version = "0.1", path = "../../sac" }
+stak-sac = { version = "0.1", path = "../../sac", features = ["std"] }
 
 [lints]
 workspace = true
diff --git a/cmd/minify/Cargo.toml b/cmd/minify/Cargo.toml
index 69aff2d4a..952de5ea6 100644
--- a/cmd/minify/Cargo.toml
+++ b/cmd/minify/Cargo.toml
@@ -9,7 +9,7 @@ readme.workspace = true
 repository.workspace = true
 
 [dependencies]
-stak-sac = { version = "0.1.44", path = "../../sac" }
+stak-sac = { version = "0.1.44", path = "../../sac", features = ["std"] }
 
 [lints]
 workspace = true
diff --git a/cmd/minimal/Cargo.lock b/cmd/minimal/Cargo.lock
index efc09a379..c69e192f9 100644
--- a/cmd/minimal/Cargo.lock
+++ b/cmd/minimal/Cargo.lock
@@ -37,14 +37,7 @@ checksum = "ae743338b92ff9146ce83992f766a31066a91a8c84a45e0e9f21e7cf6de6d346"
 name = "mstak"
 version = "0.1.18"
 dependencies = [
- "libc",
- "mstak-util",
- "stak-configuration",
- "stak-device",
- "stak-file",
- "stak-primitive",
- "stak-process-context",
- "stak-vm",
+ "stak-sac",
 ]
 
 [[package]]
@@ -52,19 +45,30 @@ name = "mstak-interpret"
 version = "0.1.17"
 dependencies = [
  "libc",
- "mstak-util",
  "stak-device",
  "stak-file",
  "stak-primitive",
  "stak-process-context",
+ "stak-util",
  "stak-vm",
 ]
 
 [[package]]
-name = "mstak-util"
-version = "0.1.18"
+name = "proc-macro2"
+version = "1.0.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
 dependencies = [
- "libc",
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.36"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
+dependencies = [
+ "proc-macro2",
 ]
 
 [[package]]
@@ -77,6 +81,18 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 name = "stak-code"
 version = "0.2.41"
 
+[[package]]
+name = "stak-compiler"
+version = "0.1.46"
+dependencies = [
+ "stak-configuration",
+ "stak-device",
+ "stak-file",
+ "stak-primitive",
+ "stak-process-context",
+ "stak-vm",
+]
+
 [[package]]
 name = "stak-configuration"
 version = "0.1.38"
@@ -95,6 +111,26 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "stak-macro"
+version = "0.1.43"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "stak-compiler",
+ "stak-macro-util",
+ "syn",
+]
+
+[[package]]
+name = "stak-macro-util"
+version = "0.1.19"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "stak-primitive"
 version = "0.5.0"
@@ -110,9 +146,48 @@ dependencies = [
 name = "stak-process-context"
 version = "0.2.0"
 
+[[package]]
+name = "stak-sac"
+version = "0.1.44"
+dependencies = [
+ "libc",
+ "stak-configuration",
+ "stak-device",
+ "stak-file",
+ "stak-macro",
+ "stak-primitive",
+ "stak-process-context",
+ "stak-util",
+ "stak-vm",
+]
+
+[[package]]
+name = "stak-util"
+version = "0.1.18"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "stak-vm"
 version = "0.5.0"
 dependencies = [
  "stak-code",
 ]
+
+[[package]]
+name = "syn"
+version = "2.0.71"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b146dcf730474b4bcd16c311627b31ede9ab149045db4d6088b3becaea046462"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
diff --git a/cmd/minimal/Cargo.toml b/cmd/minimal/Cargo.toml
index f79480410..eb331aa78 100644
--- a/cmd/minimal/Cargo.toml
+++ b/cmd/minimal/Cargo.toml
@@ -1,6 +1,6 @@
 [workspace]
 resolver = "2"
-members = ["interpret", "run", "util"]
+members = ["interpret", "run"]
 
 [workspace.package]
 edition = "2021"
@@ -23,13 +23,23 @@ todo = "deny"
 unimplemented = "deny"
 use_self = "deny"
 
+[profile.dev]
+lto = true
+opt-level = 3
+panic = "abort"
+
 [profile.release]
 codegen-units = 1
 lto = true
 panic = "abort"
 strip = true
 
-[profile.dev]
-lto = true
+[profile.dev.build-override]
 opt-level = 3
-panic = "abort"
+debug-assertions = false
+overflow-checks = false
+
+[profile.release.build-override]
+opt-level = 3
+debug-assertions = false
+overflow-checks = false
diff --git a/cmd/minimal/interpret/Cargo.toml b/cmd/minimal/interpret/Cargo.toml
index b8c1eec3b..6284875e6 100644
--- a/cmd/minimal/interpret/Cargo.toml
+++ b/cmd/minimal/interpret/Cargo.toml
@@ -10,7 +10,7 @@ repository.workspace = true
 
 [dependencies]
 libc = { version = "0.2", default-features = false }
-mstak-util = { version = "0.1.18", path = "../util" }
+stak-util = { version = "0.1.18", path = "../../../util" }
 stak-device = { version = "0.2.24", path = "../../../device", features = [
   "libc",
 ] }
@@ -24,12 +24,12 @@ stak-vm = { version = "0.5.0", path = "../../../vm" }
 [lints]
 workspace = true
 
-[profile.release]
-codegen-units = 1
+[profile.dev]
 lto = true
+opt-level = 3
 panic = "abort"
 
-[profile.dev]
+[profile.release]
+codegen-units = 1
 lto = true
-opt-level = 3
 panic = "abort"
diff --git a/cmd/minimal/interpret/src/main.rs b/cmd/minimal/interpret/src/main.rs
index 248303998..f7d8ebd32 100644
--- a/cmd/minimal/interpret/src/main.rs
+++ b/cmd/minimal/interpret/src/main.rs
@@ -10,11 +10,11 @@
 #![cfg_attr(not(test), no_main)]
 
 use core::{ffi::CStr, mem::size_of, slice};
-use mstak_util::Mmap;
 use stak_device::libc::{ReadWriteDevice, Stderr, Stdin, Stdout};
 use stak_file::LibcFileSystem;
 use stak_primitive::SmallPrimitiveSet;
 use stak_process_context::LibcProcessContext;
+use stak_util::Mmap;
 use stak_vm::{Value, Vm};
 
 const HEAP_SIZE: usize = 1 << 19;
diff --git a/cmd/minimal/run/Cargo.toml b/cmd/minimal/run/Cargo.toml
index 0a5fc580b..4d35d4e49 100644
--- a/cmd/minimal/run/Cargo.toml
+++ b/cmd/minimal/run/Cargo.toml
@@ -9,26 +9,17 @@ readme.workspace = true
 repository.workspace = true
 
 [dependencies]
-libc = { version = "0.2", default-features = false }
-mstak-util = { version = "0.1.18", path = "../util" }
-stak-configuration = { version = "0.1.20", path = "../../../configuration" }
-stak-device = { version = "0.2.24", path = "../../../device", features = [
-  "libc",
-] }
-stak-file = { version = "0.4.0", path = "../../../file", features = ["libc"] }
-stak-primitive = { version = "0.5.0", path = "../../../primitive" }
-stak-process-context = { version = "0.2.0", path = "../../../process_context" }
-stak-vm = { version = "0.5.0", path = "../../../vm" }
+stak-sac = { version = "0.1.44", path = "../../../sac", features = ["libc"] }
 
 [lints]
 workspace = true
 
-[profile.release]
-codegen-units = 1
+[profile.dev]
 lto = true
+opt-level = 3
 panic = "abort"
 
-[profile.dev]
+[profile.release]
+codegen-units = 1
 lto = true
-opt-level = 3
 panic = "abort"
diff --git a/cmd/minimal/run/build.rs b/cmd/minimal/run/build.rs
deleted file mode 100644
index e74961f40..000000000
--- a/cmd/minimal/run/build.rs
+++ /dev/null
@@ -1,70 +0,0 @@
-//! A build script.
-
-use std::{
-    env,
-    error::Error,
-    fs::{self, File},
-    io::{self, Write},
-    path::Path,
-    process::{Command, Stdio},
-};
-
-const PRELUDE_SOURCE_FILE: &str = "src/prelude.scm";
-const COMPILER_SOURCE_FILE: &str = "src/compile.scm";
-const MINIFIER_SOURCE_FILE: &str = "src/minify.scm";
-
-fn main() -> Result<(), Box<dyn Error>> {
-    build(
-        MINIFIER_SOURCE_FILE,
-        &[PRELUDE_SOURCE_FILE],
-        "prelude.scm",
-        "STAK_PRELUDE_FILE",
-    )?;
-    build(
-        COMPILER_SOURCE_FILE,
-        &[PRELUDE_SOURCE_FILE, COMPILER_SOURCE_FILE],
-        "compile.bc",
-        "STAK_COMPILER_FILE",
-    )?;
-
-    Ok(())
-}
-
-fn build(
-    script_file: &str,
-    input_files: &[&str],
-    output_file: &str,
-    environment_variable: &str,
-) -> Result<(), Box<dyn Error>> {
-    let target_file = Path::new(&env::var("OUT_DIR")?).join(output_file);
-
-    println!(
-        "cargo:rustc-env={environment_variable}={}",
-        target_file.display()
-    );
-
-    let mut command = Command::new(option_env!("STAK_HOST_INTERPRETER").unwrap_or("stak"))
-        .arg(script_file)
-        .stdin(Stdio::piped())
-        .stdout(Stdio::piped())
-        .spawn()?;
-    let stdin = command.stdin.as_mut().expect("stdin");
-
-    for file in input_files {
-        println!("cargo:rerun-if-changed={file}");
-        stdin.write_all(&fs::read(file)?)?;
-    }
-
-    command.wait()?;
-
-    io::copy(
-        &mut command.stdout.expect("stdout"),
-        &mut File::options()
-            .create(true)
-            .write(true)
-            .truncate(true)
-            .open(target_file)?,
-    )?;
-
-    Ok(())
-}
diff --git a/cmd/minimal/run/src/compile.scm b/cmd/minimal/run/src/compile.scm
deleted file mode 120000
index 7af38ed16..000000000
--- a/cmd/minimal/run/src/compile.scm
+++ /dev/null
@@ -1 +0,0 @@
-../../../../compile.scm
\ No newline at end of file
diff --git a/cmd/minimal/run/src/main.rs b/cmd/minimal/run/src/main.rs
index 6bbc5857f..acef2aefb 100644
--- a/cmd/minimal/run/src/main.rs
+++ b/cmd/minimal/run/src/main.rs
@@ -9,84 +9,4 @@
 #![no_std]
 #![cfg_attr(not(test), no_main)]
 
-use core::{array, env, ffi::CStr, slice};
-use mstak_util::{Heap, Mmap};
-use stak_configuration::DEFAULT_HEAP_SIZE;
-use stak_device::libc::{Buffer, BufferMut, Read, ReadWriteDevice, Stderr, Stdin, Stdout, Write};
-use stak_file::{LibcFileSystem, VoidFileSystem};
-use stak_primitive::SmallPrimitiveSet;
-use stak_process_context::VoidProcessContext;
-use stak_vm::{Value, Vm};
-
-const PRELUDE_SOURCE: &str = include_str!(env!("STAK_PRELUDE_FILE"));
-const COMPILER_BYTECODES: &[u8] = include_bytes!(env!("STAK_COMPILER_FILE"));
-
-const DEFAULT_BUFFER_SIZE: usize = 1 << 18;
-const MAX_SOURCE_FILE_COUNT: usize = 4;
-
-#[cfg(not(test))]
-#[panic_handler]
-fn panic(_info: &core::panic::PanicInfo) -> ! {
-    unsafe { libc::exit(1) }
-}
-
-#[cfg_attr(not(test), no_mangle)]
-unsafe extern "C" fn main(argc: isize, argv: *const *const i8) -> isize {
-    let arguments = &slice::from_raw_parts(argv, argc as _)[1..];
-
-    if arguments.is_empty() {
-        return 1;
-    }
-
-    let mut mmaps = array::from_fn::<_, MAX_SOURCE_FILE_COUNT, _>(|_| None);
-
-    for (index, &path) in arguments.iter().enumerate() {
-        mmaps[index] = Some(Mmap::new(CStr::from_ptr(path)));
-    }
-
-    let mut sources = [Default::default(); MAX_SOURCE_FILE_COUNT + 1];
-
-    sources[0] = PRELUDE_SOURCE.as_bytes();
-
-    for (index, mmap) in mmaps.iter().enumerate() {
-        if let Some(mmap) = mmap {
-            sources[index + 1] = mmap.as_slice();
-        }
-    }
-
-    let mut buffer = Heap::new(DEFAULT_BUFFER_SIZE, Default::default);
-    let mut target = BufferMut::new(buffer.as_slice_mut());
-    let mut heap = Heap::new(DEFAULT_HEAP_SIZE, Default::default);
-
-    compile(Buffer::new(&sources), &mut target, heap.as_slice_mut());
-
-    let mut vm = Vm::new(
-        heap.as_slice_mut(),
-        SmallPrimitiveSet::new(
-            ReadWriteDevice::new(Stdin::new(), Stdout::new(), Stderr::new()),
-            LibcFileSystem::new(),
-            VoidProcessContext::new(),
-        ),
-    )
-    .unwrap();
-
-    vm.initialize(target.as_bytes().iter().copied()).unwrap();
-    vm.run().unwrap();
-
-    0
-}
-
-fn compile(source: impl Read, target: impl Write, heap: &mut [Value]) {
-    let mut vm = Vm::new(
-        heap,
-        SmallPrimitiveSet::new(
-            ReadWriteDevice::new(source, target, Stderr::new()),
-            VoidFileSystem::new(),
-            VoidProcessContext::new(),
-        ),
-    )
-    .unwrap();
-
-    vm.initialize(COMPILER_BYTECODES.iter().copied()).unwrap();
-    vm.run().unwrap()
-}
+stak_sac::libc_main!("main.scm");
diff --git a/cmd/minimal/run/src/main.scm b/cmd/minimal/run/src/main.scm
new file mode 120000
index 000000000..bd9938175
--- /dev/null
+++ b/cmd/minimal/run/src/main.scm
@@ -0,0 +1 @@
+../../../run/src/main.scm
\ No newline at end of file
diff --git a/cmd/minimal/run/src/minify.scm b/cmd/minimal/run/src/minify.scm
deleted file mode 120000
index c9138e18e..000000000
--- a/cmd/minimal/run/src/minify.scm
+++ /dev/null
@@ -1 +0,0 @@
-../../../../minify.scm
\ No newline at end of file
diff --git a/cmd/minimal/run/src/prelude.scm b/cmd/minimal/run/src/prelude.scm
deleted file mode 120000
index 0b75ea0f5..000000000
--- a/cmd/minimal/run/src/prelude.scm
+++ /dev/null
@@ -1 +0,0 @@
-../../../../prelude.scm
\ No newline at end of file
diff --git a/cmd/run/Cargo.toml b/cmd/run/Cargo.toml
index 996063143..d0f90395b 100644
--- a/cmd/run/Cargo.toml
+++ b/cmd/run/Cargo.toml
@@ -9,7 +9,7 @@ readme.workspace = true
 repository.workspace = true
 
 [dependencies]
-stak-sac = { version = "0.1.44", path = "../../sac" }
+stak-sac = { version = "0.1.44", path = "../../sac", features = ["std"] }
 
 [lints]
 workspace = true
diff --git a/sac/Cargo.toml b/sac/Cargo.toml
index 9aa30ba6a..5935a3955 100644
--- a/sac/Cargo.toml
+++ b/sac/Cargo.toml
@@ -8,17 +8,29 @@ license-file.workspace = true
 readme.workspace = true
 repository.workspace = true
 
+[features]
+libc = ["dep:libc", "dep:stak-util", "stak-device/libc", "stak-file/libc"]
+std = [
+  "dep:clap",
+  "dep:main_error",
+  "stak-device/std",
+  "stak-file/std",
+  "stak-primitive/std",
+  "stak-process-context/std",
+  "stak-vm/std",
+]
+
 [dependencies]
-clap = { version = "4.5.9", features = ["derive"] }
-main_error = "0.1.2"
+clap = { version = "4.5.9", features = ["derive"], optional = true }
+libc = { version = "0.2", default-features = false, optional = true }
+main_error = { version = "0.1.2", optional = true }
 stak-configuration = { version = "0.1.38", path = "../configuration" }
-stak-device = { version = "0.2.42", path = "../device", features = ["std"] }
-stak-file = { version = "0.4.0", path = "../file", features = ["std"] }
+stak-device = { version = "0.2.42", path = "../device" }
+stak-file = { version = "0.4.0", path = "../file" }
 stak-macro = { version = "0.1.43", path = "../macro" }
-stak-primitive = { version = "0.5.0", path = "../primitive", features = [
-  "std",
-] }
+stak-primitive = { version = "0.5.0", path = "../primitive" }
 stak-process-context = { version = "0.2.0", path = "../process_context", features = [
-  "std",
+  "libc",
 ] }
-stak-vm = { version = "0.5.0", path = "../vm", features = ["std"] }
+stak-util = { version = "0.1.18", path = "../util", optional = true }
+stak-vm = { version = "0.5.0", path = "../vm" }
diff --git a/sac/src/lib.rs b/sac/src/lib.rs
index 1c98145e0..6d6377e48 100644
--- a/sac/src/lib.rs
+++ b/sac/src/lib.rs
@@ -1,8 +1,17 @@
 //! Utilities to build executable binaries from bytecode files.
 
+#![no_std]
+
+#[cfg(feature = "std")]
+pub extern crate std;
+
 #[doc(hidden)]
 pub mod __private {
+    #[cfg(feature = "std")]
     pub use clap;
+    #[cfg(feature = "libc")]
+    pub use libc;
+    #[cfg(feature = "std")]
     pub use main_error;
     pub use stak_configuration;
     pub use stak_device;
@@ -10,13 +19,18 @@ pub mod __private {
     pub use stak_macro;
     pub use stak_primitive;
     pub use stak_process_context;
+    #[cfg(feature = "libc")]
+    pub use stak_util;
     pub use stak_vm;
+    #[cfg(feature = "std")]
     pub use std;
 }
 
-/// Defines a `main` function that executes a bytecode file at a given path.
+/// Defines a `main` function that executes a source file at a given path.
 ///
-/// The given bytecode file is bundled into a resulting binary.
+/// The given source file is compiled into bytecodes and bundled into a
+/// resulting binary.
+#[cfg(feature = "std")]
 #[macro_export]
 macro_rules! main {
     ($path:expr) => {
@@ -35,7 +49,6 @@ macro_rules! main {
             stak_primitive::SmallPrimitiveSet,
             stak_process_context::OsProcessContext,
             stak_vm::Vm,
-            std::{env, error::Error},
         };
 
         #[derive(clap::Parser)]
@@ -66,3 +79,55 @@ macro_rules! main {
         }
     };
 }
+
+/// Defines a `main` function that executes a source file at a given path.
+///
+/// The given source file is compiled into bytecodes and bundled into a
+/// resulting binary.
+#[cfg(feature = "libc")]
+#[macro_export]
+macro_rules! libc_main {
+    ($path:expr) => {
+        $crate::libc_main!(
+            $path,
+            $crate::__private::stak_configuration::DEFAULT_HEAP_SIZE
+        );
+    };
+    ($path:expr, $heap_size:expr) => {
+        use $crate::__private::{
+            libc::exit,
+            stak_device::libc::{ReadWriteDevice, Stderr, Stdin, Stdout},
+            stak_file::LibcFileSystem,
+            stak_macro::include_r7rs,
+            stak_primitive::SmallPrimitiveSet,
+            stak_process_context::LibcProcessContext,
+            stak_util::Heap,
+            stak_vm::Vm,
+        };
+
+        #[cfg(not(test))]
+        #[panic_handler]
+        fn panic(_info: &core::panic::PanicInfo) -> ! {
+            unsafe { exit(1) }
+        }
+
+        #[cfg_attr(not(test), no_mangle)]
+        unsafe extern "C" fn main(argc: isize, argv: *const *const i8) -> isize {
+            let mut heap = Heap::new($heap_size, Default::default);
+            let mut vm = Vm::new(
+                heap.as_slice_mut(),
+                SmallPrimitiveSet::new(
+                    ReadWriteDevice::new(Stdin::new(), Stdout::new(), Stderr::new()),
+                    LibcFileSystem::new(),
+                    LibcProcessContext::new(argc, argv),
+                ),
+            )
+            .unwrap();
+
+            vm.initialize(include_r7rs!($path).iter().copied()).unwrap();
+            vm.run().unwrap();
+
+            0
+        }
+    };
+}
diff --git a/cmd/minimal/util/Cargo.toml b/util/Cargo.toml
similarity index 79%
rename from cmd/minimal/util/Cargo.toml
rename to util/Cargo.toml
index dc0839e3e..00dc26051 100644
--- a/cmd/minimal/util/Cargo.toml
+++ b/util/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
-name = "mstak-util"
-description = "Minimal Stak Scheme utilities"
+name = "stak-util"
+description = "Stak Scheme utilities"
 version = "0.1.18"
 edition.workspace = true
 keywords.workspace = true
diff --git a/cmd/minimal/util/src/heap.rs b/util/src/heap.rs
similarity index 100%
rename from cmd/minimal/util/src/heap.rs
rename to util/src/heap.rs
diff --git a/cmd/minimal/util/src/lib.rs b/util/src/lib.rs
similarity index 100%
rename from cmd/minimal/util/src/lib.rs
rename to util/src/lib.rs
diff --git a/cmd/minimal/util/src/mmap.rs b/util/src/mmap.rs
similarity index 96%
rename from cmd/minimal/util/src/mmap.rs
rename to util/src/mmap.rs
index 8d299ffc8..461965b55 100644
--- a/cmd/minimal/util/src/mmap.rs
+++ b/util/src/mmap.rs
@@ -29,7 +29,7 @@ impl Mmap {
     }
 
     /// Returns a slice of bytes.
-    pub fn as_slice(&self) -> &[u8] {
+    pub const fn as_slice(&self) -> &[u8] {
         unsafe { slice::from_raw_parts(self.ptr, self.len) }
     }
 }
diff --git a/cmd/minimal/util/src/validate.rs b/util/src/validate.rs
similarity index 100%
rename from cmd/minimal/util/src/validate.rs
rename to util/src/validate.rs