diff --git a/Cargo.toml b/backends/concrete-cpu/noise-model/Cargo.toml
similarity index 100%
rename from Cargo.toml
rename to backends/concrete-cpu/noise-model/Cargo.toml
diff --git a/src/gaussian_noise.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise.rs
similarity index 100%
rename from src/gaussian_noise.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise.rs
diff --git a/src/gaussian_noise/conversion.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/conversion.rs
similarity index 100%
rename from src/gaussian_noise/conversion.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/conversion.rs
diff --git a/src/gaussian_noise/noise.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise.rs
similarity index 100%
rename from src/gaussian_noise/noise.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise.rs
diff --git a/src/gaussian_noise/noise/blind_rotate.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/blind_rotate.rs
similarity index 100%
rename from src/gaussian_noise/noise/blind_rotate.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/blind_rotate.rs
diff --git a/src/gaussian_noise/noise/cmux.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/cmux.rs
similarity index 100%
rename from src/gaussian_noise/noise/cmux.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/cmux.rs
diff --git a/src/gaussian_noise/noise/external_product_glwe.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/external_product_glwe.rs
similarity index 100%
rename from src/gaussian_noise/noise/external_product_glwe.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/external_product_glwe.rs
diff --git a/src/gaussian_noise/noise/keyswitch.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/keyswitch.rs
similarity index 100%
rename from src/gaussian_noise/noise/keyswitch.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/keyswitch.rs
diff --git a/src/gaussian_noise/noise/keyswitch_one_bit.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/keyswitch_one_bit.rs
similarity index 100%
rename from src/gaussian_noise/noise/keyswitch_one_bit.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/keyswitch_one_bit.rs
diff --git a/src/gaussian_noise/noise/modulus_switching.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/modulus_switching.rs
similarity index 100%
rename from src/gaussian_noise/noise/modulus_switching.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/modulus_switching.rs
diff --git a/src/gaussian_noise/noise/multi_bit_blind_rotate.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/multi_bit_blind_rotate.rs
similarity index 100%
rename from src/gaussian_noise/noise/multi_bit_blind_rotate.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/multi_bit_blind_rotate.rs
diff --git a/src/gaussian_noise/noise/multi_bit_external_product_glwe.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/multi_bit_external_product_glwe.rs
similarity index 100%
rename from src/gaussian_noise/noise/multi_bit_external_product_glwe.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/multi_bit_external_product_glwe.rs
diff --git a/src/gaussian_noise/noise/private_packing_keyswitch.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/noise/private_packing_keyswitch.rs
similarity index 100%
rename from src/gaussian_noise/noise/private_packing_keyswitch.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/noise/private_packing_keyswitch.rs
diff --git a/src/gaussian_noise/security.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/security.rs
similarity index 100%
rename from src/gaussian_noise/security.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/security.rs
diff --git a/src/gaussian_noise/security/security_weight.rs b/backends/concrete-cpu/noise-model/src/gaussian_noise/security/security_weight.rs
similarity index 100%
rename from src/gaussian_noise/security/security_weight.rs
rename to backends/concrete-cpu/noise-model/src/gaussian_noise/security/security_weight.rs
diff --git a/src/lib.rs b/backends/concrete-cpu/noise-model/src/lib.rs
similarity index 100%
rename from src/lib.rs
rename to backends/concrete-cpu/noise-model/src/lib.rs