diff --git a/src/gol.gleam b/src/gol.gleam
index 555e25a..ecf2658 100644
--- a/src/gol.gleam
+++ b/src/gol.gleam
@@ -2,7 +2,7 @@
 //// 
 //// Module: gol (Main)
 //// API:
-//// * None
+//// - main() -> Nil
 //// Internal:
 //// * None
 
diff --git a/src/neighbourhoods.gleam b/src/neighbourhoods.gleam
index eb88140..45c6787 100644
--- a/src/neighbourhoods.gleam
+++ b/src/neighbourhoods.gleam
@@ -22,8 +22,7 @@ pub type Neighbourhoods =
 
 /// Get the neighbourhoods of a grid.
 pub fn get(grid: gri.Grid) -> Neighbourhoods {
-  let transient_grid = gri.make_transient(grid)
-  get_inner(transient_grid, transient_grid, [])
+  get_inner(gri.make_proper(grid), gri.make_transient(grid), [])
 }
 
 // Private
diff --git a/src/rule.gleam b/src/rule.gleam
index cb85e32..5abdee7 100644
--- a/src/rule.gleam
+++ b/src/rule.gleam
@@ -3,6 +3,7 @@
 //// Module: rule
 //// API:
 //// - Rule
+//// - new() -> Rule
 //// - add_case(Rule, Neighbourhood, Cell) -> Rule
 //// - apply(Rule, Neighbourhood) -> Cell
 //// Internal:
diff --git a/test/cell_test.gleam b/test/cell_test.gleam
index c79305b..2dc9677 100644
--- a/test/cell_test.gleam
+++ b/test/cell_test.gleam
@@ -2,7 +2,12 @@
 //// 
 //// Module: cell_test
 //// API:
-//// * None
+//// - main() -> Nil
+//// - new_test() -> Nil
+//// - is_alive_test() -> Nil
+//// - is_dead_test() -> Nil
+//// - toggle_test() -> Nil
+//// - get_location_test() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/definitions_test.gleam b/test/definitions_test.gleam
index 811225c..6e42425 100644
--- a/test/definitions_test.gleam
+++ b/test/definitions_test.gleam
@@ -2,7 +2,7 @@
 //// 
 //// Module: definitions_test
 //// API:
-//// * None
+//// - main() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/gol_test.gleam b/test/gol_test.gleam
index c72e395..3442c9d 100644
--- a/test/gol_test.gleam
+++ b/test/gol_test.gleam
@@ -2,7 +2,7 @@
 //// 
 //// Module: gol_test
 //// API:
-//// * None
+//// - main() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/grid_test.gleam b/test/grid_test.gleam
index 63dd76d..1505d35 100644
--- a/test/grid_test.gleam
+++ b/test/grid_test.gleam
@@ -2,7 +2,14 @@
 //// 
 //// Module: grid_test
 //// API:
-//// * None
+//// - main() -> Nil
+//// - new_test() -> Nil
+//// - make_proper_test() -> Nil
+//// - make_transient_test() -> Nil
+//// - add_test() -> Nil
+//// - get_test() -> Nil
+//// - remove_at_location_test() -> Nil
+//// - get_neighbours_test() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/lib_test.gleam b/test/lib_test.gleam
index 492ce0e..c741083 100644
--- a/test/lib_test.gleam
+++ b/test/lib_test.gleam
@@ -2,7 +2,9 @@
 //// 
 //// Module: lib_test
 //// API:
-//// * None
+//// - main() -> Nil
+//// - add_unique_test() -> Nil
+//// - remove_test() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/location_test.gleam b/test/location_test.gleam
index 8d60c4b..db7eb01 100644
--- a/test/location_test.gleam
+++ b/test/location_test.gleam
@@ -2,7 +2,10 @@
 //// 
 //// Module: location_test
 //// API:
-//// * None
+//// - main() -> Nil
+//// - new_test() -> Nil
+//// - get_x_test() -> Nil
+//// - get_y_test() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/neighbourhood_test.gleam b/test/neighbourhood_test.gleam
index edbfc22..be77b6e 100644
--- a/test/neighbourhood_test.gleam
+++ b/test/neighbourhood_test.gleam
@@ -2,7 +2,8 @@
 //// 
 //// Module: neighbourhood_test
 //// API:
-//// * None
+//// - main() -> Nil
+//// - get_test() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/neighbourhoods_test.gleam b/test/neighbourhoods_test.gleam
index 14e6323..16da36e 100644
--- a/test/neighbourhoods_test.gleam
+++ b/test/neighbourhoods_test.gleam
@@ -2,7 +2,8 @@
 //// 
 //// Module: neighbourhoods_test
 //// API:
-//// * None
+//// - main() -> Nil
+//// - get_test() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/rule_test.gleam b/test/rule_test.gleam
index 62425a5..43b4730 100644
--- a/test/rule_test.gleam
+++ b/test/rule_test.gleam
@@ -2,7 +2,10 @@
 //// 
 //// Module: rule_test
 //// API:
-//// * None
+//// - main() -> Nil
+//// - new_test() -> Nil
+//// - add_case_test() -> Nil
+//// - apply_test() -> Nil
 //// Internal:
 //// * None
 
diff --git a/test/ruleset_test.gleam b/test/ruleset_test.gleam
index a04e283..4f9a33f 100644
--- a/test/ruleset_test.gleam
+++ b/test/ruleset_test.gleam
@@ -2,7 +2,7 @@
 //// 
 //// Module: ruleset_test
 //// API:
-//// * None
+//// - main() -> Nil
 //// Internal:
 //// * None