diff --git a/Cargo.toml b/Cargo.toml
index c40c3e9..1cf19bb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,11 +5,13 @@ edition = "2021"
 
 [dependencies]
 anyhow = "1.0.86"
+hex = "0.4.3"
 ratatui = "0.27.0"
 regex = "1.10.5"
 shellexpand = "3.1.0"
 serde = { version = "1.0", features = ["derive", "rc"] }
 serde_json = "1.0"
+sha2 = "0.10.8"
 
 [target.'cfg(windows)'.dependencies]
 winapi = { version = "0.3", features = ["winuser", "processthreadsapi"] }
diff --git a/src/context.rs b/src/context.rs
new file mode 100644
index 0000000..4e8c66d
--- /dev/null
+++ b/src/context.rs
@@ -0,0 +1 @@
+// Placeholder for upcoming context module.
diff --git a/src/domain.rs b/src/domain.rs
new file mode 100644
index 0000000..c07d685
--- /dev/null
+++ b/src/domain.rs
@@ -0,0 +1 @@
+// Placeholder for upcoming domain module.
diff --git a/src/event_log.rs b/src/event_log.rs
new file mode 100644
index 0000000..693a1ef
--- /dev/null
+++ b/src/event_log.rs
@@ -0,0 +1 @@
+// Placeholder for upcoming event_log module.
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..ab1236d
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,6 @@
+pub mod context;
+pub mod domain;
+pub mod event_log;
+pub mod session;
+pub mod state_machine;
+pub mod window;
diff --git a/src/main.rs b/src/main.rs
index d14ca2f..187065f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,8 +6,8 @@ use std::io::{stdout, Write};
 use std::rc::Rc;
 use std::time::{Duration, Instant}; // <--- Add this
 mod constants;
-mod window;
 
+use antidrift::window;
 use ratatui::{
     crossterm::{
         event::{self, Event, KeyCode},
diff --git a/src/session.rs b/src/session.rs
new file mode 100644
index 0000000..c380728
--- /dev/null
+++ b/src/session.rs
@@ -0,0 +1 @@
+// Placeholder for upcoming session module.
diff --git a/src/state_machine.rs b/src/state_machine.rs
new file mode 100644
index 0000000..c296c7c
--- /dev/null
+++ b/src/state_machine.rs
@@ -0,0 +1 @@
+// Placeholder for upcoming state_machine module.