diff --git a/Cargo.lock b/Cargo.lock
index 19126c5..9d917e4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -32,11 +32,23 @@ dependencies = [
 name = "cache_utils"
 version = "0.1.0"
 dependencies = [
+ "nix 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "polling_serial 0.1.0",
+ "static_assertions 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "vga_buffer 0.1.0",
  "x86_64 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "dendrobates_tinctoreus_azureus"
 version = "0.1.0"
@@ -60,6 +72,11 @@ dependencies = [
  "spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "libc"
+version = "0.2.67"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "linked_list_allocator"
 version = "0.7.0"
@@ -76,6 +93,18 @@ dependencies = [
  "scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "nix"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.67 (registry+https://github.com/rust-lang/crates.io-index)",
+ "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "polling_serial"
 version = "0.1.0"
@@ -103,6 +132,11 @@ dependencies = [
  "lock_api 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "vga_buffer"
 version = "0.1.0"
@@ -112,6 +146,11 @@ dependencies = [
  "volatile 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "void"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "volatile"
 version = "0.2.6"
@@ -132,11 +171,17 @@ dependencies = [
 "checksum bit_field 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ed8765909f9009617974ab6b7d332625b320b33c326b1e9321382ef1999b5d56"
 "checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 "checksum bootloader 0.8.6 (registry+https://github.com/rust-lang/crates.io-index)" = "37b4577f46430d7dd1f16fa13a3aab5e3b57fe9ce7ff4378aa6b184e268eb60e"
+"checksum cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)" = "95e28fa049fda1c330bcf9d723be7663a899c4679724b34c81e9f5a326aab8cd"
+"checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+"checksum libc 0.2.67 (registry+https://github.com/rust-lang/crates.io-index)" = "eb147597cdf94ed43ab7a9038716637d2d1bf2bc571da995d0028dec06bd3018"
 "checksum linked_list_allocator 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "411991593f041990abf72f6715903fe67770e710e3c95a6d2e98a7550270136a"
 "checksum lock_api 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "79b2de95ecb4691949fea4716ca53cdbcfccb2c612e19644a8bad05edcf9f47b"
+"checksum nix 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)" = "50e4785f2c3b7589a0d0c1dd60285e1188adac4006e8abd6dd578e1567027363"
 "checksum scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 "checksum spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 "checksum spinning_top 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "32d801a3a53bcf5071f85fef8d5cab9e5f638fc5580a37e6eb7aba4b37438d24"
+"checksum static_assertions 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum volatile 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "6af0edf5b4faacc31fc51159244d78d65ec580f021afcef7bd53c04aeabc7f29"
 "checksum x86_64 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7467ff985c75f098f9897ea693141dbb25c8a5ceaf91e4a28ab705765932efb6"
diff --git a/Cargo.toml b/Cargo.toml
index 8c18f09..31ef079 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ vga_buffer = { path = "vga_buffer" }
 polling_serial = { path = "polling_serial" }
 volatile = "0.2.6"
 linked_list_allocator = "0.7.0"
-cache_utils = { path = "cache_utils" }
+cache_utils = { path = "cache_utils", features = ["no_std"], default-features = false }
 arrayref = "0.3.6"
 
 [dependencies.lazy_static]
diff --git a/cache_utils/.cargo/config b/cache_utils/.cargo/config
new file mode 100644
index 0000000..2f05654
--- /dev/null
+++ b/cache_utils/.cargo/config
@@ -0,0 +1,2 @@
+[build]
+target = "x86_64-unknown-linux-gnu"
diff --git a/cache_utils/Cargo.toml b/cache_utils/Cargo.toml
index b725187..a20c633 100644
--- a/cache_utils/Cargo.toml
+++ b/cache_utils/Cargo.toml
@@ -7,6 +7,15 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-polling_serial = { path = "../polling_serial" }
-vga_buffer = { path = "../vga_buffer" }
+polling_serial = { path = "../polling_serial", optional = true }
+vga_buffer = { path = "../vga_buffer", optional = true }
 x86_64 = "0.9.2"
+static_assertions = "1.1.0"
+
+nix = { version = "0.17.0", optional = true }
+
+[features]
+std = ["nix"]
+no_std = ["polling_serial", "vga_buffer"]
+
+default = ["std"]
diff --git a/cache_utils/src/calibration.rs b/cache_utils/src/calibration.rs
index fd9a363..efdbc54 100644
--- a/cache_utils/src/calibration.rs
+++ b/cache_utils/src/calibration.rs
@@ -1,4 +1,6 @@
 use crate::{flush, maccess, rdtsc_fence};
+
+#[cfg(feature = "no_std")]
 use polling_serial::serial_println as println;
 
 extern crate alloc;
diff --git a/cache_utils/src/lib.rs b/cache_utils/src/lib.rs
index ddc88a9..01c1e3c 100644
--- a/cache_utils/src/lib.rs
+++ b/cache_utils/src/lib.rs
@@ -1,4 +1,4 @@
-#![no_std]
+#![cfg_attr(feature = "no_std", no_std)]
 
 pub mod cache_info;
 pub mod calibration;
diff --git a/cache_utils/src/main.rs b/cache_utils/src/main.rs
index ad3255b..07ff80b 100644
--- a/cache_utils/src/main.rs
+++ b/cache_utils/src/main.rs
@@ -1,2 +1,6 @@
 // TODO create a nice program that can run on a system and will do the calibration.
 // Make multithreaded, with core pinning or single threaded pinned to cores from the shell ?
+
+pub fn main() {
+    println!("Hello World!");
+}