diff --git a/crates/nix-weather/Cargo.toml b/crates/nix-weather/Cargo.toml
index 150de51..ab0c7e6 100644
--- a/crates/nix-weather/Cargo.toml
+++ b/crates/nix-weather/Cargo.toml
@@ -1,3 +1,8 @@
+# SPDX-FileCopyrightText: 2024 Christina Sørensen
+# SPDX-FileContributor: Christina Sørensen
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 [package]
 name = "nix-weather"
 description = "Guix weather, for nix!"
diff --git a/crates/nix-weather/src/cli.rs b/crates/nix-weather/src/cli.rs
index c45b846..038af7f 100644
--- a/crates/nix-weather/src/cli.rs
+++ b/crates/nix-weather/src/cli.rs
@@ -1,7 +1,7 @@
-// SPDX-FileCopyrightText: 2023 Christina Sørensen
+// SPDX-FileCopyrightText: 2023-2024 Christina Sørensen
 // SPDX-FileContributor: Christina Sørensen
 //
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: EUPL-1.2
 
 use std::{cell::OnceCell, sync::OnceLock};
 
diff --git a/crates/nix-weather/src/main.rs b/crates/nix-weather/src/main.rs
index da63ac2..971fc27 100644
--- a/crates/nix-weather/src/main.rs
+++ b/crates/nix-weather/src/main.rs
@@ -1,7 +1,7 @@
 // SPDX-FileCopyrightText: 2024 Christina Sørensen
 // SPDX-FileContributor: Christina Sørensen
 //
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: EUPL-1.2
 
 use std::time::{Duration, Instant};
 use std::{env, io, net::SocketAddr};
diff --git a/crates/nix-weather/src/net.rs b/crates/nix-weather/src/net.rs
index f4e94b3..bd21e05 100644
--- a/crates/nix-weather/src/net.rs
+++ b/crates/nix-weather/src/net.rs
@@ -1,3 +1,8 @@
+// SPDX-FileCopyrightText: 2024 Christina Sørensen
+// SPDX-FileContributor: Christina Sørensen
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 use std::time::Duration;
 
 use async_recursion::async_recursion;
diff --git a/crates/nix-weather/src/nix.rs b/crates/nix-weather/src/nix.rs
index a6d7d0f..80f05cc 100644
--- a/crates/nix-weather/src/nix.rs
+++ b/crates/nix-weather/src/nix.rs
@@ -1,3 +1,8 @@
+// SPDX-FileCopyrightText: 2024 Christina Sørensen
+// SPDX-FileContributor: Christina Sørensen
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 use serde_json::Value;
 use std::{
     path::Path,