diff --git a/.nextmv/add_header.py b/.nextmv/add_header.py
new file mode 100644
index 0000000..1da107c
--- /dev/null
+++ b/.nextmv/add_header.py
@@ -0,0 +1,27 @@
+# Description: This script adds a header to all go files that are missing it.
+import glob
+
+HEADER = "// © 2019-present nextmv.io inc"
+
+# List all go files in all subdirectories
+go_files = glob.glob("**/*.go", recursive=True)
+
+# Check if the header is the first line of each file
+missing = []
+checked = 0
+for file in go_files:
+    with open(file, "r") as f:
+        first_line = f.readline().strip()
+        if first_line != HEADER:
+            missing.append(file)
+        checked += 1
+
+# Add the header to all missing files
+for file in missing:
+    print(f"Adding header to {file}")
+    with open(file) as f:
+        content = f.read()
+    with open(file, "w") as f:
+        f.write(HEADER + "\n\n" + content)
+
+print(f"Checked {checked} files, added header to {len(missing)} files")
diff --git a/common/alias.go b/common/alias.go
index 8338670..7bdb03d 100644
--- a/common/alias.go
+++ b/common/alias.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/alias_test.go b/common/alias_test.go
index 1a9fa9c..7fe96e8 100644
--- a/common/alias_test.go
+++ b/common/alias_test.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common_test
 
 import (
diff --git a/common/boundingbox.go b/common/boundingbox.go
index 258ab85..35e91be 100644
--- a/common/boundingbox.go
+++ b/common/boundingbox.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 // BoundingBox contains information about a box.
diff --git a/common/boundingbox_test.go b/common/boundingbox_test.go
index 2e1b323..05d6c2c 100644
--- a/common/boundingbox_test.go
+++ b/common/boundingbox_test.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common_test
 
 import (
diff --git a/common/distance.go b/common/distance.go
index 9af3176..6bcf3f9 100644
--- a/common/distance.go
+++ b/common/distance.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 // Package common contains common types and functions.
 package common
 
diff --git a/common/duration.go b/common/duration.go
index e664cd4..3849807 100644
--- a/common/duration.go
+++ b/common/duration.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/fast_haversine.go b/common/fast_haversine.go
index 0de5430..3379275 100644
--- a/common/fast_haversine.go
+++ b/common/fast_haversine.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/haversine.go b/common/haversine.go
index 36657dd..d678fa3 100644
--- a/common/haversine.go
+++ b/common/haversine.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/intersect.go b/common/intersect.go
index 7c7276e..ec5505f 100644
--- a/common/intersect.go
+++ b/common/intersect.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 // Intersect returns the intersection of two slices.
diff --git a/common/location.go b/common/location.go
index 3a6679d..cbdbea4 100644
--- a/common/location.go
+++ b/common/location.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/nsmallest.go b/common/nsmallest.go
index aa0d62d..9987207 100644
--- a/common/nsmallest.go
+++ b/common/nsmallest.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/nsmallest_test.go b/common/nsmallest_test.go
index a75c4d3..c057e85 100644
--- a/common/nsmallest_test.go
+++ b/common/nsmallest_test.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common_test
 
 import (
diff --git a/common/speed.go b/common/speed.go
index dfb7242..81f71bc 100644
--- a/common/speed.go
+++ b/common/speed.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/statistics.go b/common/statistics.go
index 0ff375e..f235729 100644
--- a/common/statistics.go
+++ b/common/statistics.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/statistics_test.go b/common/statistics_test.go
index d50290b..53557f9 100644
--- a/common/statistics_test.go
+++ b/common/statistics_test.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common_test
 
 import (
diff --git a/common/utils.go b/common/utils.go
index 4617d17..c3472bc 100644
--- a/common/utils.go
+++ b/common/utils.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common
 
 import (
diff --git a/common/utils_test.go b/common/utils_test.go
index f23698b..5a1dab0 100644
--- a/common/utils_test.go
+++ b/common/utils_test.go
@@ -1,3 +1,5 @@
+// © 2019-present nextmv.io inc
+
 package common_test
 
 import (