diff --git a/Cargo.toml b/Cargo.toml
index 611e833..472e625 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,3 @@
 [workspace]
-members = ["parser", "program", "web", "cel_spec"]
+members = ["cel-rs", "cel-spec", "web"]
 resolver = "1"
\ No newline at end of file
diff --git a/parser/Cargo.toml b/cel-rs/Cargo.toml
similarity index 69%
rename from parser/Cargo.toml
rename to cel-rs/Cargo.toml
index 5f51822..88a144f 100644
--- a/parser/Cargo.toml
+++ b/cel-rs/Cargo.toml
@@ -1,14 +1,18 @@
 [package]
-name = "parser"
+name = "cel-rs"
 version = "0.1.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
-
 [dependencies]
+ordered-float = "4.2.0"
+ordered_hash_map = "0.4.0"
 regex = "1.4.2"
 lalrpop-util = "0.19.1"
 
+[dev_dependencies]
+cel-spec = {path = "../cel-spec"}
+
 [build-dependencies]
 lalrpop = { version = "0.19.1", features = ["lexer"] }
\ No newline at end of file
diff --git a/parser/build.rs b/cel-rs/build.rs
similarity index 100%
rename from parser/build.rs
rename to cel-rs/build.rs
diff --git a/program/src/context.rs b/cel-rs/src/context.rs
similarity index 100%
rename from program/src/context.rs
rename to cel-rs/src/context.rs
diff --git a/program/src/eval.rs b/cel-rs/src/eval.rs
similarity index 92%
rename from program/src/eval.rs
rename to cel-rs/src/eval.rs
index 7eddd2f..07c7cf7 100644
--- a/program/src/eval.rs
+++ b/cel-rs/src/eval.rs
@@ -1,7 +1,7 @@
 use core::panic;
-use std::{mem, rc::Rc};
+use std::rc::Rc;
 use ordered_hash_map::OrderedHashMap;
-use parser::{ArithmeticOp, Expression, Member, RelationOp};
+use crate::parser::{ArithmeticOp, Expression, Member, RelationOp};
 use crate::{value::Value, Context};
 
 pub trait Bag {
@@ -22,7 +22,7 @@ impl Eval {
     fn eval_member(&self, expr: Expression, member: Member, ctx: &mut Context) -> impl Bag {
         let v = self.eval(expr.clone(), ctx).unpack();
         match member {
-            parser::Member::Attribute(attr) => {
+            crate::parser::Member::Attribute(attr) => {
                 if let Value::Map(v) = v {
                     let value = v.get(&Value::String(attr)).expect("TODO: unknown map key");
                     return value.to_owned()
@@ -34,11 +34,11 @@ impl Eval {
                 
                 panic!("unknown attribute {}", attr)
             },
-            parser::Member::FunctionCall(args) => {
+            crate::parser::Member::FunctionCall(args) => {
                 println!("call args = {:?}  v = {:?}, expr = {:?}", args, v, expr);
                 Value::Null
             },
-            parser::Member::Index(i) => {
+            crate::parser::Member::Index(i) => {
                 let i = self.eval(*i, ctx).unpack();
                 if let Value::Map(v) = v {
                     let value = v.get(&i).expect("TODO: unknown map key");
@@ -46,7 +46,7 @@ impl Eval {
                 } 
                 Value::Null
             },
-            parser::Member::Fields(_) => todo!("Fields"),
+            crate::parser::Member::Fields(_) => todo!("Fields"),
         }
     }
     fn eval_map(&self, entries: Vec<(Expression, Expression)>, ctx: &mut Context) -> Value {
diff --git a/program/src/lib.rs b/cel-rs/src/lib.rs
similarity index 87%
rename from program/src/lib.rs
rename to cel-rs/src/lib.rs
index 80d3d71..b6d9c1a 100644
--- a/program/src/lib.rs
+++ b/cel-rs/src/lib.rs
@@ -4,4 +4,5 @@ pub use crate::program::Program;
 pub use crate::context::Context;
 pub mod value;
 pub use crate::value::Value;
-mod eval;
\ No newline at end of file
+mod eval;
+mod parser;
\ No newline at end of file
diff --git a/parser/src/ast.rs b/cel-rs/src/parser/ast.rs
similarity index 100%
rename from parser/src/ast.rs
rename to cel-rs/src/parser/ast.rs
diff --git a/parser/src/cel.lalrpop b/cel-rs/src/parser/cel.lalrpop
similarity index 98%
rename from parser/src/cel.lalrpop
rename to cel-rs/src/parser/cel.lalrpop
index c691e91..5c3f0b0 100644
--- a/parser/src/cel.lalrpop
+++ b/cel-rs/src/parser/cel.lalrpop
@@ -1,4 +1,4 @@
-use crate::{RelationOp, ArithmeticOp, Expression, UnaryOp, Member, Atom};
+use crate::parser::{RelationOp, ArithmeticOp, Expression, UnaryOp, Member, Atom};
 use std::rc::Rc;
 
 grammar;
diff --git a/cel-rs/src/parser/mod.rs b/cel-rs/src/parser/mod.rs
new file mode 100644
index 0000000..3d5750a
--- /dev/null
+++ b/cel-rs/src/parser/mod.rs
@@ -0,0 +1,11 @@
+use lalrpop_util::lalrpop_mod;
+
+pub mod ast;
+pub use ast::*;
+
+lalrpop_mod!(
+    #[allow(clippy::all)]
+    #[allow(unused)]
+    pub cel, 
+    "/parser/cel.rs"
+);
\ No newline at end of file
diff --git a/program/src/program.rs b/cel-rs/src/program.rs
similarity index 95%
rename from program/src/program.rs
rename to cel-rs/src/program.rs
index 3cd5039..4376886 100644
--- a/program/src/program.rs
+++ b/cel-rs/src/program.rs
@@ -1,5 +1,5 @@
-use parser::Expression;
-use parser::parser::ExpressionParser;
+use crate::parser::Expression;
+use crate::parser::cel::ExpressionParser;
 use std::fmt;
 use std::result::Result;
 use crate::context::Context;
@@ -44,7 +44,7 @@ impl Program {
 
 #[cfg(test)]
 pub mod tests {
-    use std::{default, rc::Rc, task::Context};
+    use std::rc::Rc;
 
     use crate::{program, value::{FnValue, Overload}, Value};
 
diff --git a/program/src/value.rs b/cel-rs/src/value.rs
similarity index 99%
rename from program/src/value.rs
rename to cel-rs/src/value.rs
index 2b64269..70a4223 100644
--- a/program/src/value.rs
+++ b/cel-rs/src/value.rs
@@ -1,7 +1,7 @@
 use std::{hash::Hash, rc::Rc};
 use ordered_float::OrderedFloat;
 use ordered_hash_map::OrderedHashMap;
-use parser::Atom;
+use crate::parser::Atom;
 
 #[derive(PartialEq, Eq, Clone, Debug)]
 pub enum Value {
diff --git a/program/tests/test.rs b/cel-rs/tests/test.rs
similarity index 100%
rename from program/tests/test.rs
rename to cel-rs/tests/test.rs
diff --git a/cel_spec/Cargo.toml b/cel-spec/Cargo.toml
similarity index 92%
rename from cel_spec/Cargo.toml
rename to cel-spec/Cargo.toml
index 40b295d..9029286 100644
--- a/cel_spec/Cargo.toml
+++ b/cel-spec/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "cel_spec"
+name = "cel-spec"
 version = "0.1.0"
 edition = "2021"
 
diff --git a/cel_spec/build.rs b/cel-spec/build.rs
similarity index 100%
rename from cel_spec/build.rs
rename to cel-spec/build.rs
diff --git a/cel_spec/src/lib.rs b/cel-spec/src/lib.rs
similarity index 94%
rename from cel_spec/src/lib.rs
rename to cel-spec/src/lib.rs
index a81da7d..c746bc8 100644
--- a/cel_spec/src/lib.rs
+++ b/cel-spec/src/lib.rs
@@ -15,7 +15,7 @@ fn get_expected_value(value: &prost_reflect::DynamicMessage) -> String {
         "bytes_value" => ("Bytes(std::rc::Rc::new(Vec::from(", format!("{:?}", field.1.as_bytes().unwrap().to_vec()), ")))"),
         _ => ("Null", String::new(), "")
     };
-    format!("program::value::Value::{}{}{}", m, v, c)
+    format!("cel_rs::value::Value::{}{}{}", m, v, c)
 }
 
 #[proc_macro]
@@ -61,10 +61,10 @@ pub fn suite(attr: TokenStream) -> TokenStream {
             ast.push_str(&format!(r##"
                 #[test]
                 fn {name}() {{
-                    let program = program::Program::new(r#"{expr}"#);
+                    let program = cel_rs::Program::new(r#"{expr}"#);
                     assert!(program.is_ok(), "failed to parse '{{}}'", r#"{expr}"#);
                     let program = program.unwrap();
-                    let mut ctx = program::context::Context::default();
+                    let mut ctx = cel_rs::context::Context::default();
                     let value = program.eval(&mut ctx);
                     let expected_value = {expected_value};
                     assert_eq!(value, expected_value, r#""{{}}" did not match "{{}}""#, value, expected_value);
diff --git a/parser/src/lib.rs b/parser/src/lib.rs
deleted file mode 100644
index 76927b3..0000000
--- a/parser/src/lib.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-use lalrpop_util::lalrpop_mod;
-
-pub mod ast;
-pub use ast::*;
-
-lalrpop_mod!(#[allow(clippy::all)] pub parser, "/cel.rs");
\ No newline at end of file
diff --git a/program/Cargo.toml b/program/Cargo.toml
deleted file mode 100644
index e92a5ea..0000000
--- a/program/Cargo.toml
+++ /dev/null
@@ -1,14 +0,0 @@
-[package]
-name = "program"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-parser = {path = "../parser"}
-ordered-float = "4.2.0"
-ordered_hash_map = "0.4.0"
-
-[dev_dependencies]
-cel_spec = {path = "../cel_spec"}
\ No newline at end of file
diff --git a/web/Cargo.toml b/web/Cargo.toml
index a4bd8b8..c3d5228 100644
--- a/web/Cargo.toml
+++ b/web/Cargo.toml
@@ -7,5 +7,5 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-program = {path = "../program"}
+cel-rs = {path = "../cel-rs"}
 wasm-bindgen = "0.2"
diff --git a/web/src/lib.rs b/web/src/lib.rs
index 0755240..fe57886 100644
--- a/web/src/lib.rs
+++ b/web/src/lib.rs
@@ -1,4 +1,4 @@
-use program::{Context, Program};
+use cel_rs::{Context, Program};
 use wasm_bindgen::prelude::*;
 
 #[wasm_bindgen]
@@ -11,7 +11,7 @@ extern "C" {
 
 fn eval(source: &str) -> bool {
     match Program::new(source) {
-        Ok(p) => p.execute(Context::default()),
+        Ok(p) => p.execute(&mut Context::default()),
         Err(err) => {
             error(format!("cel-rs: parse error {}", err));
             false