diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b630a4c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+# Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..663a39d
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,344 @@
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..e3fedcc
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,56 @@
+[package]
+name = "tx-lang"
+edition = "2021"
+rust-version = "1.67"
+authors = ["Xavier Thomas <xavier.thomas.1980@gmail.com>"]
+description = "Lightweight, fast, modern and safe scripting language"
+keywords = [
+  "vm",
+  "compiler",
+  "interpreter",
+  "language",
+  "programming-language",
+  "single-pass",
+  "light",
+  "lightweight",
+  "safe",
+  "fast",
+]
+license = "MIT OR Apache-2.0"
+repository = "https://www.github.com/thmxv/tx-lang-rust"
+version = "0.1.0"
+
+[workspace]
+members = ["crates/*"]
+
+[[bin]]
+name = "tx"
+path = "src/main.rs"
+
+[features]
+default = ["lsp", "repl", "nan-boxing"]
+tx32 = ["tx-runtime/tx32"]
+nan-boxing = ["tx-runtime/nan-boxing"]
+debug-features = ["tx-runtime/debug-features"]
+gc-stress = ["tx-runtime/gc-stress"]
+repl = ["dep:tx-repl"]
+lsp = ["dep:tx-lsp"]
+
+[dependencies]
+tx-runtime.path = "crates/tx-runtime"
+tx-repl = { path = "crates/tx-repl", optional = true }
+tx-lsp = { path = "crates/tx-lsp", optional = true }
+clap = { version = "4.1.8", features = ["derive"] }
+
+[profile.release]
+opt-level = "z"
+codegen-units = 1
+debug = 0
+lto = true
+panic = "abort"
+strip = true
+
+[profile.pofiling]
+inherits = "release"
+debug = 1
+strip = false
diff --git a/README.md b/README.md
index c63f05f..26b2f37 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,7 @@
-# tx-lang-rust
+# The Tx programming language (rust implementation)
+
+Lightweight, fast, modern and safe scripting language
+
+## About Tx
+
+
diff --git a/crates/tx-lsp/Cargo.toml b/crates/tx-lsp/Cargo.toml
new file mode 100644
index 0000000..d6e84bb
--- /dev/null
+++ b/crates/tx-lsp/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "tx-lsp"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/crates/tx-lsp/src/lib.rs b/crates/tx-lsp/src/lib.rs
new file mode 100644
index 0000000..7d12d9a
--- /dev/null
+++ b/crates/tx-lsp/src/lib.rs
@@ -0,0 +1,14 @@
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}
diff --git a/crates/tx-repl/Cargo.toml b/crates/tx-repl/Cargo.toml
new file mode 100644
index 0000000..b243e21
--- /dev/null
+++ b/crates/tx-repl/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "tx-repl"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/crates/tx-repl/src/lib.rs b/crates/tx-repl/src/lib.rs
new file mode 100644
index 0000000..7d12d9a
--- /dev/null
+++ b/crates/tx-repl/src/lib.rs
@@ -0,0 +1,14 @@
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}
diff --git a/crates/tx-runtime/Cargo.toml b/crates/tx-runtime/Cargo.toml
new file mode 100644
index 0000000..b86a576
--- /dev/null
+++ b/crates/tx-runtime/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "tx-runtime"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at
+# https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[features]
+tx32 = []
+nan-boxing = []
+debug-features = []
+gc-stress = []
+
+[dependencies]
diff --git a/crates/tx-runtime/src/lib.rs b/crates/tx-runtime/src/lib.rs
new file mode 100644
index 0000000..7d12d9a
--- /dev/null
+++ b/crates/tx-runtime/src/lib.rs
@@ -0,0 +1,14 @@
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}
diff --git a/rustfmt.toml b/rustfmt.toml
new file mode 100644
index 0000000..a1ffd27
--- /dev/null
+++ b/rustfmt.toml
@@ -0,0 +1 @@
+max_width = 79
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..dbb84f6
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,45 @@
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    /// File to execute (use '-' to read from standard input)
+    #[arg(value_name = "FILE", conflicts_with = "command")]
+    file: Option<String>,
+
+    /// Command to interpret (conflicts with FILE argument)
+    #[arg(short, long, value_name = "TXT", conflicts_with = "file")]
+    command: Option<String>,
+
+    /// Set debug option(s) (only works on build with debug features)
+    #[arg(short = 'D', value_name = "OPT", value_enum)]
+    debug_opts: Vec<DebugOpt>,
+
+    /// Arguments to pass to the interpreted script/command
+    #[arg(last = true)]
+    arguments: Vec<String>,
+}
+
+#[derive(clap::ValueEnum, Clone, Debug)]
+enum DebugOpt {
+    /// Enable all the debug otions
+    All,
+    /// Print tokens during compilation
+    PrintTokens,
+    /// Print bytecode after compilation
+    PrintBytecode,
+    /// Trace bytecode execution
+    TraceExecution,
+    /// Trace garbage collection
+    TraceGC,
+}
+
+fn main() {
+    let args = Args::parse();
+    println!("file: {:?}", args.file);
+    println!("command: {:?}", args.command);
+    for opt in args.debug_opts {
+        println!("-D {:?}", opt);
+    }
+    println!("arguments {:?}", args.arguments);
+}