diff --git a/cloud/agent/agent.go b/cloud/agent/agent.go
index e0bfd81..c5873eb 100644
--- a/cloud/agent/agent.go
+++ b/cloud/agent/agent.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/agent/api/gomod-generated-placeholder.go b/cloud/agent/api/gomod-generated-placeholder.go
index 778f64e..da08b30 100644
--- a/cloud/agent/api/gomod-generated-placeholder.go
+++ b/cloud/agent/api/gomod-generated-placeholder.go
@@ -1 +1,4 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package api
diff --git a/cloud/agent/e2e/main_test.go b/cloud/agent/e2e/main_test.go
index dcde625..84fd611 100644
--- a/cloud/agent/e2e/main_test.go
+++ b/cloud/agent/e2e/main_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package e2e
 
 import (
diff --git a/cloud/agent/hwreport.go b/cloud/agent/hwreport.go
index c37a640..5be56ae 100644
--- a/cloud/agent/hwreport.go
+++ b/cloud/agent/hwreport.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/agent/hwreport_test.go b/cloud/agent/hwreport_test.go
index b2d8649..43f61fd 100644
--- a/cloud/agent/hwreport_test.go
+++ b/cloud/agent/hwreport_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/agent/install.go b/cloud/agent/install.go
index 30d6869..cdc8fa5 100644
--- a/cloud/agent/install.go
+++ b/cloud/agent/install.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package main
 
 import (
diff --git a/cloud/agent/takeover/e2e/main_test.go b/cloud/agent/takeover/e2e/main_test.go
index b141e63..9ab6769 100644
--- a/cloud/agent/takeover/e2e/main_test.go
+++ b/cloud/agent/takeover/e2e/main_test.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package e2e
 
 import (
diff --git a/cloud/agent/takeover/takeover.go b/cloud/agent/takeover/takeover.go
index bf7760c..9af4872 100644
--- a/cloud/agent/takeover/takeover.go
+++ b/cloud/agent/takeover/takeover.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 // takeover is a self-contained executable which when executed loads the BMaaS
 // agent via kexec. It is intended to be called over SSH, given a binary
 // TakeoverInit message over standard input and (if all preparation work