diff --git a/Cargo.lock b/Cargo.lock
index a3ec426c..7869aa86 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -39,9 +39,9 @@ checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
 
 [[package]]
 name = "clap"
-version = "3.1.14"
+version = "3.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "535434c063ced786eb04aaf529308092c5ab60889e8fe24275d15de07b01fa97"
+checksum = "d2dbdf4bdacb33466e854ce889eee8dfd5729abf7ccd7664d0a2d60cd384440b"
 dependencies = [
  "atty",
  "bitflags",
@@ -56,9 +56,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "3.1.7"
+version = "3.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3aab4734e083b809aaf5794e14e756d1c798d2c69c7f7de7a09a2f5214993c1"
+checksum = "25320346e922cffe59c0bbc5410c8d8784509efb321488971081313cb1e1a33c"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -86,6 +86,10 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "flat"
+version = "0.0.0"
+
 [[package]]
 name = "hashbrown"
 version = "0.11.2"
@@ -131,9 +135,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.125"
+version = "0.2.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5916d2ae698f6de9bfb891ad7a8d65c09d232dc58cc4ac433c7da3b2fd84bc2b"
+checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
 
 [[package]]
 name = "memchr"
@@ -143,21 +147,18 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "neptune"
-version = "0.1.0"
+version = "0.0.0"
 dependencies = [
  "anyhow",
  "clap",
- "combine",
- "hex",
- "strum",
- "strum_macros",
+ "uplc",
 ]
 
 [[package]]
 name = "os_str_bytes"
-version = "6.0.0"
+version = "6.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
+checksum = "029d8d0b2f198229de29dca79676f2738ff952edf3fde542eb8bf94d8c21b435"
 
 [[package]]
 name = "proc-macro-error"
@@ -185,11 +186,11 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.37"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec757218438d5fda206afc041538b2f6d889286160d649a86a24d37e1235afd1"
+checksum = "c54b25569025b7fc9651de43004ae593a75ad88543b17178aa5e1b9c4f15f56f"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -234,13 +235,13 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.92"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ff7c592601f11445996a06f8ad0c27f094a58857c2f89e97974ab9235b92c52"
+checksum = "fbaf6116ab8924f39d52792136fb74fd60a80194cf1b1c6ffa6453eef1c3f942"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -259,10 +260,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
 
 [[package]]
-name = "unicode-xid"
-version = "0.2.2"
+name = "unicode-ident"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
+
+[[package]]
+name = "uplc"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "combine",
+ "flat",
+ "hex",
+ "strum",
+ "strum_macros",
+]
 
 [[package]]
 name = "version_check"
diff --git a/Cargo.toml b/Cargo.toml
index b951c6c2..f409c5ce 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,14 +1,2 @@
-[package]
-name = "neptune"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-anyhow = "1.0.57"
-clap = { version = "3.1.14", features = ["derive"] }
-combine = "4.6.4"
-hex = "0.4.3"
-strum = "0.24.0"
-strum_macros = "0.24.0"
+[workspace]
+members = ["crates/cli", "crates/flat", "crates/uplc"]
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
new file mode 100644
index 00000000..996ced22
--- /dev/null
+++ b/crates/cli/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "neptune"
+version = "0.0.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.57"
+clap = { version = "3.1.14", features = ["derive"] }
+uplc = { path = '../uplc' }
diff --git a/src/cli.rs b/crates/cli/src/lib.rs
similarity index 100%
rename from src/cli.rs
rename to crates/cli/src/lib.rs
diff --git a/src/main.rs b/crates/cli/src/main.rs
similarity index 82%
rename from src/main.rs
rename to crates/cli/src/main.rs
index b3282e4d..e490bccc 100644
--- a/src/main.rs
+++ b/crates/cli/src/main.rs
@@ -1,5 +1,6 @@
-use neptune::cli::Cli;
-use neptune::parser;
+use uplc::parser;
+
+use neptune::Cli;
 
 fn main() -> anyhow::Result<()> {
     let args = Cli::default();
diff --git a/crates/flat/Cargo.toml b/crates/flat/Cargo.toml
new file mode 100644
index 00000000..e69e2d8a
--- /dev/null
+++ b/crates/flat/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "flat"
+version = "0.0.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
\ No newline at end of file
diff --git a/crates/flat/src/encode.rs b/crates/flat/src/encode.rs
new file mode 100644
index 00000000..22935cfe
--- /dev/null
+++ b/crates/flat/src/encode.rs
@@ -0,0 +1,34 @@
+use crate::{encoder::Encoder, filler::Filler};
+
+pub trait Encode {
+    fn encode(&self, e: &mut Encoder) -> Result<(), String>;
+}
+
+impl Encode for bool {
+    fn encode(&self, e: &mut Encoder) -> Result<(), String> {
+        e.bool(*self);
+
+        Ok(())
+    }
+}
+
+impl<T, K> Encode for (T, K)
+where
+    T: Encode,
+    K: Encode,
+{
+    fn encode(&self, e: &mut Encoder) -> Result<(), String> {
+        self.0.encode(e)?;
+        self.1.encode(e)?;
+
+        Ok(())
+    }
+}
+
+impl Encode for Filler {
+    fn encode(&self, e: &mut Encoder) -> Result<(), String> {
+        e.filler();
+
+        Ok(())
+    }
+}
diff --git a/src/flat.rs b/crates/flat/src/encoder.rs
similarity index 53%
rename from src/flat.rs
rename to crates/flat/src/encoder.rs
index 15b7730d..4ac01dee 100644
--- a/src/flat.rs
+++ b/crates/flat/src/encoder.rs
@@ -1,49 +1,4 @@
-pub trait Encode {
-    fn encode(&self, e: &mut Encoder) -> Result<(), String>;
-}
-
-impl Encode for bool {
-    fn encode(&self, e: &mut Encoder) -> Result<(), String> {
-        e.bool(*self);
-
-        Ok(())
-    }
-}
-
-enum Filler {
-    FillerStart(Box<Filler>),
-    FillerEnd,
-}
-
-impl Filler {
-    pub fn len(&self) -> usize {
-        match self {
-            Filler::FillerStart(f) => f.len() + 1,
-            Filler::FillerEnd => 1,
-        }
-    }
-}
-
-impl Encode for Filler {
-    fn encode(&self, e: &mut Encoder) -> Result<(), String> {
-        e.filler();
-
-        Ok(())
-    }
-}
-
-impl<T, K> Encode for (T, K)
-where
-    T: Encode,
-    K: Encode,
-{
-    fn encode(&self, e: &mut Encoder) -> Result<(), String> {
-        self.0.encode(e)?;
-        self.1.encode(e)?;
-
-        Ok(())
-    }
-}
+use crate::encode::Encode;
 
 pub struct Encoder {
     pub buffer: Vec<u8>,
@@ -116,33 +71,8 @@ impl Encoder {
         self.used_bits = 0;
     }
 
-    fn filler(&mut self) {
+    pub(crate) fn filler(&mut self) {
         self.current_byte |= 1;
         self.next_word();
     }
 }
-
-pub fn encode<T>(value: T) -> Result<Vec<u8>, String>
-where
-    T: Encode,
-{
-    let mut e = Encoder::new();
-
-    e.encode((value, Filler::FillerEnd))?;
-
-    Ok(e.buffer)
-}
-
-#[cfg(test)]
-mod test {
-    #[test]
-    fn encode_bool() {
-        let bytes = super::encode(true).unwrap();
-
-        assert_eq!(bytes, vec![0b10000001]);
-
-        let bytes = super::encode(false).unwrap();
-
-        assert_eq!(bytes, vec![0b00000001]);
-    }
-}
diff --git a/crates/flat/src/filler.rs b/crates/flat/src/filler.rs
new file mode 100644
index 00000000..162211b0
--- /dev/null
+++ b/crates/flat/src/filler.rs
@@ -0,0 +1,13 @@
+pub enum Filler {
+    FillerStart(Box<Filler>),
+    FillerEnd,
+}
+
+impl Filler {
+    pub fn len(&self) -> usize {
+        match self {
+            Filler::FillerStart(f) => f.len() + 1,
+            Filler::FillerEnd => 1,
+        }
+    }
+}
diff --git a/crates/flat/src/lib.rs b/crates/flat/src/lib.rs
new file mode 100644
index 00000000..1c0c1334
--- /dev/null
+++ b/crates/flat/src/lib.rs
@@ -0,0 +1,33 @@
+mod encode;
+mod encoder;
+mod filler;
+
+pub mod en {
+    pub use super::encode::*;
+    pub use super::encoder::*;
+}
+
+pub fn encode<T>(value: T) -> Result<Vec<u8>, String>
+where
+    T: en::Encode,
+{
+    let mut e = en::Encoder::new();
+
+    e.encode((value, filler::Filler::FillerEnd))?;
+
+    Ok(e.buffer)
+}
+
+#[cfg(test)]
+mod test {
+    #[test]
+    fn encode_bool() {
+        let bytes = super::encode(true).unwrap();
+
+        assert_eq!(bytes, vec![0b10000001]);
+
+        let bytes = super::encode(false).unwrap();
+
+        assert_eq!(bytes, vec![0b00000001]);
+    }
+}
diff --git a/crates/uplc/Cargo.toml b/crates/uplc/Cargo.toml
new file mode 100644
index 00000000..6df70bf4
--- /dev/null
+++ b/crates/uplc/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "uplc"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.57"
+combine = "4.6.4"
+flat = { path = "../flat" }
+hex = "0.4.3"
+strum = "0.24.0"
+strum_macros = "0.24.0"
diff --git a/crates/uplc/example/plutus-core b/crates/uplc/example/plutus-core
new file mode 100644
index 00000000..e91bf68f
--- /dev/null
+++ b/crates/uplc/example/plutus-core
@@ -0,0 +1,3 @@
+(program 1.0.0
+    [[(builtin addInteger) (con integer 4)] (con integer 8)]
+)
\ No newline at end of file
diff --git a/src/ast.rs b/crates/uplc/src/ast.rs
similarity index 100%
rename from src/ast.rs
rename to crates/uplc/src/ast.rs
diff --git a/src/builtins.rs b/crates/uplc/src/builtins.rs
similarity index 100%
rename from src/builtins.rs
rename to crates/uplc/src/builtins.rs
diff --git a/src/lib.rs b/crates/uplc/src/lib.rs
similarity index 75%
rename from src/lib.rs
rename to crates/uplc/src/lib.rs
index d912086e..54249879 100644
--- a/src/lib.rs
+++ b/crates/uplc/src/lib.rs
@@ -1,7 +1,5 @@
 pub mod ast;
 pub mod builtins;
-pub mod cli;
-pub mod flat;
 pub mod parser;
 
 #[macro_use]
diff --git a/src/parser.rs b/crates/uplc/src/parser.rs
similarity index 100%
rename from src/parser.rs
rename to crates/uplc/src/parser.rs
diff --git a/example/plutus-core b/example/plutus-core
deleted file mode 100644
index 2765bdb2..00000000
--- a/example/plutus-core
+++ /dev/null
@@ -1,3 +0,0 @@
-(program 1.0.0
-    [(builtin sha2_256) (con bytestring #54686543616B654973414C6965)]
-)
\ No newline at end of file