diff --git a/.cargo/config.toml b/.cargo/config.toml
index 35049cb..f1b6376 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,2 +1,6 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 [alias]
 xtask = "run --package xtask --"
diff --git a/.gitignore b/.gitignore
index 03ed317..9189c95 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 .devenv
 
 # Added by cargo
diff --git a/.reuse/dep5 b/.reuse/dep5
index 772082a..60e8a2c 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -3,6 +3,10 @@ Upstream-Name: fuk
 Upstream-Contact: Łukasz Niemier <~@hauleth.dev>
 Source: https://git.sr.ht/~hauleth/fuk
 
+Files: *.lock
+Copyright: 2024 Łukasz Niemier <#@hauleth.dev>
+License: EUPL-1.2
+
 # Sample paragraph, commented out:
 #
 # Files: src/*
diff --git a/Cargo.toml b/Cargo.toml
index e9042fb..a69bdf9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 [workspace]
 resolver = "2"
 default-members = [ "cli" ]
diff --git a/README.md b/README.md
index e491523..c2c5c9a 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
+<!--
+SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+
+SPDX-License-Identifier: EUPL-1.2
+-->
+
 # FUK
 
 > No one gives a fuk… so you need to take it yourself.
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index c14e754..75d9c8b 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 [package]
 name = "fuk"
 version = "0.1.0"
diff --git a/cli/src/config.rs b/cli/src/config.rs
index ff57815..fde0d38 100644
--- a/cli/src/config.rs
+++ b/cli/src/config.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 use crate::output::Output;
 use crate::sources::*;
 
diff --git a/cli/src/lib.rs b/cli/src/lib.rs
index e63d471..246c763 100644
--- a/cli/src/lib.rs
+++ b/cli/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 pub mod config;
 pub mod output;
 pub mod sources;
diff --git a/cli/src/main.rs b/cli/src/main.rs
index 38fdd99..10adc91 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 use simple_eyre::eyre::Result;
 use clap::Parser;
 use std::path::Path;
diff --git a/cli/src/output/mod.rs b/cli/src/output/mod.rs
index 0b72af1..34144cf 100644
--- a/cli/src/output/mod.rs
+++ b/cli/src/output/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 use std::collections::HashMap;
 
 #[derive(PartialEq, Eq, Debug, Copy, Clone)]
diff --git a/cli/src/sources/mod.rs b/cli/src/sources/mod.rs
index 678aaef..ca825b6 100644
--- a/cli/src/sources/mod.rs
+++ b/cli/src/sources/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 use ssh_key::PublicKey;
 use tokio::process::Command;
 use serde::Deserialize;
diff --git a/docs/fuk.1.scd.license b/docs/fuk.1.scd.license
new file mode 100644
index 0000000..6968db9
--- /dev/null
+++ b/docs/fuk.1.scd.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+
+SPDX-License-Identifier: EUPL-1.2
diff --git a/flake.nix b/flake.nix
index 6eb419f..a4067da 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 {
   description = "Description for the project";
 
diff --git a/keys.toml b/keys.toml
index be28865..c4d2a03 100644
--- a/keys.toml
+++ b/keys.toml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 [[entry]]
 name = "hauleth"
 keys = [
diff --git a/nix/fuk.nix b/nix/fuk.nix
index 3b175b4..adf1967 100644
--- a/nix/fuk.nix
+++ b/nix/fuk.nix
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 {
   lib,
   rustPlatform,
diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index 3081013..4cb05e7 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
 [package]
 name = "xtask"
 version = "0.1.0"
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 2b193df..e4f2953 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Łukasz Niemier <#@hauleth.dev>
+//
+// SPDX-License-Identifier: EUPL-1.2
+
 use std::fs;
 use std::path::Path;