diff --git a/.gitignore b/.gitignore
index 5e5c5f7..5fde9ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Unlicense
+
 dtrfs.tar
 build
 tmp
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..efb9808
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org/>
diff --git a/README.md b/README.md
index 8975e5e..64c50f0 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
+<!--
+SPDX-License-Identifier: Unlicense
+-->
+
 ## OS template
 
 You will need a working OS template to work with this project.
diff --git a/dtrfs_api/Cargo.lock b/dtrfs_api/Cargo.lock
index 77c70ff..8e246c0 100644
--- a/dtrfs_api/Cargo.lock
+++ b/dtrfs_api/Cargo.lock
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Unlicense
+
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 version = 4
diff --git a/dtrfs_api/Cargo.toml b/dtrfs_api/Cargo.toml
index 493439b..1a37400 100644
--- a/dtrfs_api/Cargo.toml
+++ b/dtrfs_api/Cargo.toml
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Unlicense
+
 [package]
 name = "dtrfs_api"
 version = "0.1.0"
diff --git a/dtrfs_api/rustfmt.toml b/dtrfs_api/rustfmt.toml
index 01959db..0b2e293 100644
--- a/dtrfs_api/rustfmt.toml
+++ b/dtrfs_api/rustfmt.toml
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: Unlicense
+
 reorder_impl_items = true
 use_small_heuristics = "Max"
 merge_imports = true
diff --git a/dtrfs_api/src/main.rs b/dtrfs_api/src/main.rs
index 9506b77..1a33704 100644
--- a/dtrfs_api/src/main.rs
+++ b/dtrfs_api/src/main.rs
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Unlicense
+
 mod os;
 mod snp;
 
diff --git a/dtrfs_api/src/os.rs b/dtrfs_api/src/os.rs
index 9c196cd..0fbb50b 100644
--- a/dtrfs_api/src/os.rs
+++ b/dtrfs_api/src/os.rs
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Unlicense
+
 use crate::snp::get_derived_key;
 use anyhow::{anyhow, Result};
 use base64::prelude::{Engine, BASE64_URL_SAFE};
diff --git a/dtrfs_api/src/snp.rs b/dtrfs_api/src/snp.rs
index e3d57ba..d9d7c78 100644
--- a/dtrfs_api/src/snp.rs
+++ b/dtrfs_api/src/snp.rs
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Unlicense
+
 use anyhow::{Context, Result};
 use sev::firmware::guest::{AttestationReport, DerivedKey, Firmware, GuestFieldSelect};
 use base64::prelude::{Engine, BASE64_URL_SAFE};
diff --git a/scripts/create.sh b/scripts/create.sh
index a094e85..5230196 100755
--- a/scripts/create.sh
+++ b/scripts/create.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
+
+# SPDX-License-Identifier: Unlicense
+
 cd -- "$( dirname -- "${BASH_SOURCE[0]}" )"
 source creator_exports.sh
 source creator_functions.sh
diff --git a/scripts/creator_exports.sh b/scripts/creator_exports.sh
index 7b29b89..7fa0a89 100755
--- a/scripts/creator_exports.sh
+++ b/scripts/creator_exports.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
+
+# SPDX-License-Identifier: Unlicense
+
 script_dir=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 
 # root of the initrd, that will be used to create the cpio archive
diff --git a/scripts/creator_functions.sh b/scripts/creator_functions.sh
index 1bcbd26..e6b32ca 100644
--- a/scripts/creator_functions.sh
+++ b/scripts/creator_functions.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+# SPDX-License-Identifier: Unlicense
+
 echo_cyan() {
   echo -e "\033[0;36m$1\033[0m"
 }
diff --git a/scripts/init.sh b/scripts/init.sh
index 31d7c6e..49b5cbe 100755
--- a/scripts/init.sh
+++ b/scripts/init.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
+
+# SPDX-License-Identifier: Unlicense
+
 source /usr/lib/dtrfs/init_functions.sh
 
 install_url="/tmp/detee_install_url"
diff --git a/scripts/init_functions.sh b/scripts/init_functions.sh
index 81baec1..9c7b609 100644
--- a/scripts/init_functions.sh
+++ b/scripts/init_functions.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+# SPDX-License-Identifier: Unlicense
+
 load_modules() {
   cat /load_modules.sh | bash
 }
diff --git a/scripts/install_os.sh b/scripts/install_os.sh
index d53e52a..a3ea273 100755
--- a/scripts/install_os.sh
+++ b/scripts/install_os.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+# SPDX-License-Identifier: Unlicense
+
 # This script is called by dtrfs_api to install an OS.
 
 [[ -z "$INSTALL_URL" ]] && {
diff --git a/scripts/remote_create.sh b/scripts/remote_create.sh
index 37dae76..d8427a8 100755
--- a/scripts/remote_create.sh
+++ b/scripts/remote_create.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
+
+# SPDX-License-Identifier: Unlicense
+
 cd -- "$( dirname -- "${BASH_SOURCE[0]}" )"
 
 dir="/tmp/dtrfs"
diff --git a/scripts/upload_to_registry.sh b/scripts/upload_to_registry.sh
index 20814e3..2c38ac6 100755
--- a/scripts/upload_to_registry.sh
+++ b/scripts/upload_to_registry.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+# SPDX-License-Identifier: Unlicense
+
 kernel_path="/boot/vmlinuz-linux"
 
 dtrfs_path="$1"