diff --git a/Cargo.toml b/Cargo.toml
index ff206c2..0904d21 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ resolver = "2"
 version = "0.0.1"
 authors = ["Raphael Amorim <rapha850@gmail.com>"]
 edition = "2024"
-license = "MIT"
+license = "Apache-2.0 WITH LLVM-exception"
 keywords = ["compiler"]
 rust-version = "1.96.0"
 repository = "https://github.com/raphamorim/jam"
diff --git a/crates/jam/src/main.rs b/crates/jam/src/main.rs
index 906d93d..9f09d12 100644
--- a/crates/jam/src/main.rs
+++ b/crates/jam/src/main.rs
@@ -1,9 +1,11 @@
+mod cli;
+
 use std::env;
 
 fn main() {
     let args: Vec<String> = env::args().collect();
     if args.len() < 2  {
-        display_help();
+        cli::display_help();
         return;
     }
     let command = &args[1];
@@ -12,59 +14,8 @@ fn main() {
             println!("0.0.1");
         },
         "help" | _ => {
-            display_help();
+            cli::display_help();
         }
     }
 }
 
-fn display_help() {
-    println!(r#"Jam programming language compiler
-
-Usage: jam [OPTIONS] <file|directory>
-       jam run [LINKER-FLAGS] <file>
-       jam test [<file|directory>]
-
-Subcommands:
-  run             Compile, run, and clean up the executable.
-                  Only linker flags (-l<name>) may accompany it.
-  test            Compile test functions and run them.
-  version         Print version and exit.
-  help            Print help and exit.
-
-Options:
-  -o <name>       Output binary name (default: 'output')
-  -C opt-level=N  Optimization level, Default is '0'
-                    0  no optimizations
-                    1  basic optimizations
-                    2  LLVM default (-O2)
-                    3  aggressive (-O3)
-                    s  optimize for size (-Os)
-                    z  aggressively optimize for size (-Oz)
-  -C lto=MODE     Link-time optimization. Default is 'off'
-                    off   regular object file (no LTO)
-                    thin  ThinLTO bitcode — fast, parallel link
-                    fat   full LTO bitcode — slowest link, most opt
-  -C strip=MODE   Symbol / debug-info stripping. Default is 'none'
-                    none       keep all symbols & debug info
-                    debuginfo  strip DWARF / debug sections only
-                    symbols    strip debug + local symbols
-  --emit-ir       Print LLVM IR to stdout
-  --target-info   Show host target info (arch, triple, ...)
-  --std-path <dir>
-                  Override the standard-library root used to
-                  takes precedence over the JAM_STD_PATH env var
-  -l<name>, --library <name>
-                  Link against system library <name>
-
-Examples:
-
-jam hello.jam                 # compile to './output'
-jam run hello.jam             # compile and run
-jam run -lncurses tetris.jam  # compile, link with ncurses, run
-jam help                      # show help
-jam version                   # show version
-jam test                      # run tests in current working directory
-jam test tests/unit           # run tests under tests/unit
-jam test tests/unit/foo.jam   # run tests in a single file
-    "#);
-}