diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..f85b4fa
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,26 @@
+Cerulean (https://dobutterfliescry.net/cerulean)
+Copyright 2025-2026 _cry64 (Emile Clark-Boman)
+
+This product includes software developed by
+_cry64 (Emile Clark-Boman) (https://github.com/cry128/nt) under the MIT license.
+Copyright 2025-2026 _cry64 (Emile Clark-Boman)
+
+This product includes software developed by
+Eelco Dolstra and the Nixpkgs/NixOS contributors under the MIT license.
+Copyright 2003-2026 Eelco Dolstra and the Nixpkgs/NixOS contributors
+
+This product includes software developed by
+the Home Manager contributors (https://github.com/nix-community/home-manager) under the MIT license.
+Copyright 2017-2026 Home Manager contributors
+
+This product includes software developed by
+Serokell (https://serokell.io) under the MPL-2.0 license.
+Copyright 2020-2026 Serokell
+
+This product includes software developed by
+nix-systems (https://github.com/nix-systems) under the MIT license.
+Copyright 2023 nix-systems
+
+This product includes software developed by
+Astro (https://github.com/astro) and the MicroVM.nix contributors (https://github.com/microvm-nix/microvm.nix) under the MIT license.
+Copyright 2021 Astro, and MicroVM.nix contributors
diff --git a/ceru/ceru b/ceru/ceru
index f407960..5630489 100755
--- a/ceru/ceru
+++ b/ceru/ceru
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ceru/libceru.sh b/ceru/libceru.sh
index 95aba51..ed1b6c3 100755
--- a/ceru/libceru.sh
+++ b/ceru/libceru.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ceru/subcmds/new/cache-key b/ceru/subcmds/new/cache-key
index 0b5aa13..e193e83 100755
--- a/ceru/subcmds/new/cache-key
+++ b/ceru/subcmds/new/cache-key
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ceru/subcmds/new/default.sh b/ceru/subcmds/new/default.sh
index af34920..88175fa 100755
--- a/ceru/subcmds/new/default.sh
+++ b/ceru/subcmds/new/default.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ceru/subcmds/new/password b/ceru/subcmds/new/password
index d5cd795..232539b 100755
--- a/ceru/subcmds/new/password
+++ b/ceru/subcmds/new/password
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2026 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ceru/subcmds/new/ssh-key b/ceru/subcmds/new/ssh-key
index d0aa524..651aadb 100755
--- a/ceru/subcmds/new/ssh-key
+++ b/ceru/subcmds/new/ssh-key
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ceru/subcmds/new/wg-key b/ceru/subcmds/new/wg-key
index 2efa85c..bab6773 100755
--- a/ceru/subcmds/new/wg-key
+++ b/ceru/subcmds/new/wg-key
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/default.nix b/cerulean/default.nix
index 4639fa4..a2dba7d 100644
--- a/cerulean/default.nix
+++ b/cerulean/default.nix
@@ -1,4 +1,4 @@
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nexus/default.nix b/cerulean/nexus/default.nix
index 65495bf..7a756aa 100644
--- a/cerulean/nexus/default.nix
+++ b/cerulean/nexus/default.nix
@@ -1,4 +1,4 @@
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nexus/nexus.nix b/cerulean/nexus/nexus.nix
index 5d0ca02..6f79b26 100644
--- a/cerulean/nexus/nexus.nix
+++ b/cerulean/nexus/nexus.nix
@@ -1,4 +1,4 @@
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nexus/nodes.nix b/cerulean/nexus/nodes.nix
index 13ced2f..0e3d03d 100644
--- a/cerulean/nexus/nodes.nix
+++ b/cerulean/nexus/nodes.nix
@@ -1,4 +1,4 @@
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nexus/snow.nix b/cerulean/nexus/snow.nix
index 28496ca..736779f 100644
--- a/cerulean/nexus/snow.nix
+++ b/cerulean/nexus/snow.nix
@@ -1,4 +1,4 @@
-# Copyright 2026 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nixos/default.nix b/cerulean/nixos/default.nix
index ea7c359..02bbe8b 100644
--- a/cerulean/nixos/default.nix
+++ b/cerulean/nixos/default.nix
@@ -1,4 +1,4 @@
-# Copyright 2026 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nixos/home-manager.nix b/cerulean/nixos/home-manager.nix
index 1d281cb..7c87a0c 100644
--- a/cerulean/nixos/home-manager.nix
+++ b/cerulean/nixos/home-manager.nix
@@ -1,4 +1,4 @@
-# Copyright 2026 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nixos/microvm-child.nix b/cerulean/nixos/microvm-child.nix
index 2b6a12e..d13e217 100644
--- a/cerulean/nixos/microvm-child.nix
+++ b/cerulean/nixos/microvm-child.nix
@@ -1,4 +1,4 @@
-# Copyright 2026 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nixos/microvm-parent.nix b/cerulean/nixos/microvm-parent.nix
index 2b6a12e..d13e217 100644
--- a/cerulean/nixos/microvm-parent.nix
+++ b/cerulean/nixos/microvm-parent.nix
@@ -1,4 +1,4 @@
-# Copyright 2026 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/cerulean/nixos/nixpkgs.nix b/cerulean/nixos/nixpkgs.nix
index 0376f47..f07fc35 100644
--- a/cerulean/nixos/nixpkgs.nix
+++ b/cerulean/nixos/nixpkgs.nix
@@ -1,4 +1,4 @@
-# Copyright 2026 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/flake.nix b/flake.nix
index c1a5498..0e6d711 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,4 +1,4 @@
-# Copyright 2025 Emile Clark-Boman
+# Copyright 2025-2026 _cry64 (Emile Clark-Boman)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.