diff --git a/AIM.md b/AIM.md
new file mode 100644
index 0000000..82bf541
--- /dev/null
+++ b/AIM.md
@@ -0,0 +1,4 @@
+Make a gridded structure which can support:
+
+- 3D
+- Hexagons
diff --git a/src/main.rs b/src/main.rs
index 5fd512d..022e41e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,10 +1,4 @@
-use std::cmp::{max, min};
-use std::fs::File;
-use std::io;
-use std::io::Write;
-use std::ops::Add;
 use std::path::PathBuf;
-use nd_array::Array;
 use rand::prelude::*;
 
 mod system;
diff --git a/src/system/mod.rs b/src/system/mod.rs
index 70de893..745afae 100644
--- a/src/system/mod.rs
+++ b/src/system/mod.rs
@@ -3,7 +3,6 @@ use std::ops::Add;
 pub mod walker;
 pub mod storage;
 pub mod model;
-pub mod generic;
 
 pub(crate) const DIM: u32 = 2;
 
diff --git a/src/system/storage.rs b/src/system/storage.rs
index 4a15bb1..c005322 100644
--- a/src/system/storage.rs
+++ b/src/system/storage.rs
@@ -1,4 +1,3 @@
-use nd_array::Array;
 use crate::system::Position;
 
 pub trait Storage {