diff --git a/chacha20poly1305/Cargo.toml b/chacha20poly1305/Cargo.toml
index 43b02128c..94036cab5 100644
--- a/chacha20poly1305/Cargo.toml
+++ b/chacha20poly1305/Cargo.toml
@@ -10,13 +10,9 @@ edition.workspace = true
 repository.workspace = true
 readme.workspace = true
 
-[features]
-default = ["hacl"]
-hacl = ["dep:libcrux-poly1305", "dep:libcrux-hacl-rs", "dep:libcrux-macros"]
-
 [dependencies]
 libcrux-poly1305 = { version = "=0.0.2-beta.2", path = "../poly1305/", features = [
     "expose-hacl",
-], optional = true }
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/", optional = true }
-libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros", optional = true }
+] }
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/" }
+libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }
diff --git a/chacha20poly1305/src/impl_hacl.rs b/chacha20poly1305/src/impl_hacl.rs
index 44223e6bf..dcec76bcd 100644
--- a/chacha20poly1305/src/impl_hacl.rs
+++ b/chacha20poly1305/src/impl_hacl.rs
@@ -1,4 +1,4 @@
-use crate::{AeadError, MacError, KEY_LEN, NONCE_LEN, TAG_LEN};
+use crate::{AeadError, KEY_LEN, NONCE_LEN, TAG_LEN};
 
 /// The ChaCha20-Poly1305 AEAD encryption function. Writes the concatenation of the ciphertexoft
 /// produced by ChaCha20 and the MAC tag into `ctxt` and returns the two pieces separately.
@@ -24,9 +24,6 @@ pub fn encrypt<'a>(
     }
 
     // ensure destination slice has just the right length
-    let ctxt_len = ptxt.len() + TAG_LEN;
-    let ctxtu32 = &mut ctxt[..ctxt_len];
-
     let (ctxt_cpa, tag) = ctxt.split_at_mut(ptxt.len());
     let tag: &mut [u8; TAG_LEN] = tag.try_into().unwrap();
 
diff --git a/chacha20poly1305/src/lib.rs b/chacha20poly1305/src/lib.rs
index c4cd612c7..90852f83f 100644
--- a/chacha20poly1305/src/lib.rs
+++ b/chacha20poly1305/src/lib.rs
@@ -35,7 +35,6 @@ pub enum MacError {
     InvalidMacTag,
 }
 
-#[cfg(feature = "hacl")]
 mod hacl {
     pub(crate) use libcrux_poly1305::hacl::mac_poly1305;
 
@@ -44,8 +43,6 @@ mod hacl {
     pub(crate) mod chacha20_vec32;
 }
 
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
-#[cfg(feature = "hacl")]
 pub use impl_hacl::*;
diff --git a/curve25519/Cargo.toml b/curve25519/Cargo.toml
index fccb866f3..c7e990139 100644
--- a/curve25519/Cargo.toml
+++ b/curve25519/Cargo.toml
@@ -10,13 +10,6 @@ edition.workspace = true
 repository.workspace = true
 readme.workspace = true
 
-[features]
-default = ["hacl"]
-hacl = ["dep:libcrux-sha2", "dep:libcrux-hacl-rs", "dep:libcrux-macros"]
-
 [dependencies]
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/", optional = true }
-libcrux-sha2 = { version = "=0.0.2-beta.2", path = "../sha2", optional = true, features = [
-    "hacl",
-] }
-libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros", optional = true }
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/" }
+libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }
diff --git a/curve25519/src/lib.rs b/curve25519/src/lib.rs
index 5e697f9c1..e61317202 100644
--- a/curve25519/src/lib.rs
+++ b/curve25519/src/lib.rs
@@ -1,12 +1,9 @@
 #![no_std]
 
-#[cfg(feature = "hacl")]
 pub use libcrux_hacl_rs::curve25519_51 as hacl;
 
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
-#[cfg(feature = "hacl")]
 pub use impl_hacl::{ecdh, secret_to_public};
 
 /// The length of Curve25519 secret keys.
@@ -22,8 +19,9 @@ pub const SHK_LEN: usize = 32;
 pub struct Error;
 
 /// This trait is implemented by the backing implementations.
-/// Only used for implementation agility.
-pub trait Curve25519 {
+/// Only used for ensuring implementations follow the same interface, not really consumed.
+#[allow(dead_code)]
+trait Curve25519 {
     /// Computes a public key from a secret key.
     fn secret_to_public(pk: &mut [u8; PK_LEN], sk: &[u8; SK_LEN]);
 
diff --git a/ed25519/Cargo.toml b/ed25519/Cargo.toml
index 18fd3021d..3eaae4193 100644
--- a/ed25519/Cargo.toml
+++ b/ed25519/Cargo.toml
@@ -10,13 +10,9 @@ edition.workspace = true
 repository.workspace = true
 readme.workspace = true
 
-[features]
-default = ["hacl"]
-hacl = ["dep:libcrux-sha2", "dep:libcrux-hacl-rs", "dep:libcrux-macros"]
-
 [dependencies]
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/", optional = true }
-libcrux-sha2 = { version = "=0.0.2-beta.2", path = "../sha2", optional = true, features = [
-    "hacl",
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/" }
+libcrux-sha2 = { version = "=0.0.2-beta.2", path = "../sha2", features = [
+    "expose-hacl",
 ] }
-libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros", optional = true }
+libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }
diff --git a/ed25519/src/lib.rs b/ed25519/src/lib.rs
index 9dfd36fa8..706bde8a0 100644
--- a/ed25519/src/lib.rs
+++ b/ed25519/src/lib.rs
@@ -1,6 +1,5 @@
 #![no_std]
 
-#[cfg(feature = "hacl")]
 pub mod hacl {
     //! This module contains generated hacl code.
 
@@ -8,8 +7,6 @@ pub mod hacl {
     pub mod ed25519_precomptable;
 }
 
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
-#[cfg(feature = "hacl")]
 pub use impl_hacl::*;
diff --git a/libcrux-ecdh/Cargo.toml b/libcrux-ecdh/Cargo.toml
index 3fa7eb40c..fdd85df6c 100644
--- a/libcrux-ecdh/Cargo.toml
+++ b/libcrux-ecdh/Cargo.toml
@@ -15,9 +15,7 @@ path = "src/ecdh.rs"
 [dependencies]
 rand = { version = "0.8" }
 libcrux-hacl = { version = "=0.0.2-beta.2", path = "../sys/hacl" }
-libcrux-curve25519 = { version = "=0.0.2-beta.2", path = "../curve25519", features = [
-    "hacl",
-] }
+libcrux-curve25519 = { version = "=0.0.2-beta.2", path = "../curve25519" }
 
 [dev-dependencies]
 rand_core = { version = "0.6" }
diff --git a/libcrux-hkdf/Cargo.toml b/libcrux-hkdf/Cargo.toml
index c1b9e2839..a317bf967 100644
--- a/libcrux-hkdf/Cargo.toml
+++ b/libcrux-hkdf/Cargo.toml
@@ -13,13 +13,8 @@ description = "Libcrux HKDF implementation"
 path = "src/hkdf.rs"
 
 [features]
-default = ["hacl"]
-hacl = ["dep:libcrux-hmac", "dep:libcrux-hacl-rs"]
-
 [dependencies]
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/", optional = true }
-libcrux-hmac = { version = "=0.0.2-beta.2", path = "../libcrux-hmac", optional = true, features = [
-    "hacl",
+libcrux-hmac = { version = "=0.0.2-beta.2", path = "../libcrux-hmac", features = [
     "expose-hacl",
-
 ] }
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/" }
diff --git a/libcrux-hkdf/src/hkdf.rs b/libcrux-hkdf/src/hkdf.rs
index 6c912b352..e77d598d2 100644
--- a/libcrux-hkdf/src/hkdf.rs
+++ b/libcrux-hkdf/src/hkdf.rs
@@ -7,13 +7,10 @@ extern crate alloc;
 
 use alloc::vec::Vec;
 
-#[cfg(feature = "hacl")]
 pub mod hacl;
 
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
-#[cfg(feature = "hacl")]
 pub use impl_hacl::{HkdfSha2_256, HkdfSha2_384, HkdfSha2_512};
 
 pub trait HkdfMode<const HASH_LEN: usize> {
@@ -115,7 +112,6 @@ pub enum Error {
 
 /// HKDF extract using hash function `mode`, `salt`, and the input key material `ikm`.
 /// Returns the pre-key material in a vector of tag length.
-#[cfg(feature = "hacl")]
 #[inline(always)]
 pub fn extract(
     alg: Algorithm,
@@ -134,7 +130,6 @@ pub fn extract(
 /// HKDF expand using hash function `mode`, pre-key material `prk`, `info`, and output length `okm_len`.
 /// Returns the key material in a vector of length `okm_len` or [`Error::OkmLengthTooLarge`]
 /// if the requested output length is too large.
-#[cfg(feature = "hacl")]
 #[inline(always)]
 pub fn expand(
     alg: Algorithm,
@@ -155,7 +150,6 @@ pub fn expand(
 /// Calls `extract` and `expand` with the given input.
 /// Returns the key material in a vector of length `okm_len` or [`Error::OkmLengthTooLarge`]
 /// if the requested output length is too large.
-#[cfg(feature = "hacl")]
 #[inline(always)]
 pub fn hkdf(
     mode: Algorithm,
diff --git a/libcrux-hmac/Cargo.toml b/libcrux-hmac/Cargo.toml
index 99fc53231..bb3bc108d 100644
--- a/libcrux-hmac/Cargo.toml
+++ b/libcrux-hmac/Cargo.toml
@@ -13,13 +13,11 @@ description = "Libcrux HMAC implementation"
 path = "src/hmac.rs"
 
 [features]
-default = ["hacl"]
-hacl = ["dep:libcrux-sha2", "dep:libcrux-hacl-rs", "dep:libcrux-macros"]
-expose-hacl = ["hacl"]
+expose-hacl = []
 
 [dependencies]
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/", optional = true }
-libcrux-sha2 = { version = "=0.0.2-beta.2", path = "../sha2", optional = true, features = [
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/" }
+libcrux-sha2 = { version = "=0.0.2-beta.2", path = "../sha2", features = [
     "expose-hacl",
 ] }
-libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros", optional = true }
+libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }
diff --git a/libcrux-hmac/src/hmac.rs b/libcrux-hmac/src/hmac.rs
index 1f0243a99..8b9207712 100644
--- a/libcrux-hmac/src/hmac.rs
+++ b/libcrux-hmac/src/hmac.rs
@@ -7,7 +7,7 @@ extern crate alloc;
 
 use alloc::vec::Vec;
 
-#[cfg(all(feature = "hacl", not(feature = "expose-hacl")))]
+#[cfg(not(feature = "expose-hacl"))]
 mod hacl {
     pub(crate) mod hash_sha1;
     pub(crate) mod hmac;
@@ -19,10 +19,8 @@ pub mod hacl {
     pub mod hmac;
 }
 
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
-#[cfg(feature = "hacl")]
 pub use impl_hacl::*;
 
 /// The HMAC algorithm defining the used hash function.
diff --git a/poly1305/Cargo.toml b/poly1305/Cargo.toml
index e7300cf29..575bcc697 100644
--- a/poly1305/Cargo.toml
+++ b/poly1305/Cargo.toml
@@ -11,10 +11,8 @@ repository.workspace = true
 readme.workspace = true
 
 [features]
-default = ["hacl"]
-hacl = ["dep:libcrux-hacl-rs", "dep:libcrux-macros"]
-expose-hacl = ["hacl"]
+expose-hacl = []
 
 [dependencies]
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/", optional = true }
-libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros", optional = true }
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs/" }
+libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }
diff --git a/poly1305/src/lib.rs b/poly1305/src/lib.rs
index d940f8aae..ea06d97cf 100644
--- a/poly1305/src/lib.rs
+++ b/poly1305/src/lib.rs
@@ -15,7 +15,7 @@ pub enum Error {
     InvalidMacTag,
 }
 
-#[cfg(all(feature = "hacl", not(feature = "expose-hacl")))]
+#[cfg(not(feature = "expose-hacl"))]
 mod hacl {
     pub(crate) mod mac_poly1305;
 }
@@ -25,8 +25,6 @@ pub mod hacl {
     pub mod mac_poly1305;
 }
 
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
-#[cfg(feature = "hacl")]
 pub use impl_hacl::*;
diff --git a/rsa/Cargo.toml b/rsa/Cargo.toml
index 268526ea3..fcc1f3faf 100644
--- a/rsa/Cargo.toml
+++ b/rsa/Cargo.toml
@@ -11,12 +11,10 @@ repository.workspace = true
 readme.workspace = true
 
 [features]
-default = ["hacl"]
-hacl = ["dep:libcrux-hacl-rs"]
-expose-hacl = ["hacl"]
+expose-hacl = []
 
 [dependencies]
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs", optional = true }
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs" }
 libcrux-traits = { version = "=0.0.2-beta.2", path = "../traits/" }
 libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }
 libcrux-sha2 = { version = "=0.0.2-beta.2", path = "../sha2", features = [
diff --git a/rsa/src/lib.rs b/rsa/src/lib.rs
index c67d40d9d..058222358 100644
--- a/rsa/src/lib.rs
+++ b/rsa/src/lib.rs
@@ -1,6 +1,6 @@
 #![no_std]
 
-#[cfg(all(feature = "hacl", not(feature = "expose-hacl")))]
+#[cfg(not(feature = "expose-hacl"))]
 mod hacl {
     pub(crate) mod rsapss;
 
@@ -38,12 +38,10 @@ impl DigestAlgorithm {
 pub enum Error {
     SaltTooLarge,
     MessageTooLarge,
-    SigningFailed,
     VerificationFailed,
+    SigningFailed,
 }
 
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
-#[cfg(feature = "hacl")]
 pub use impl_hacl::*;
diff --git a/sha2/Cargo.toml b/sha2/Cargo.toml
index a216d3c7e..9460ea2df 100644
--- a/sha2/Cargo.toml
+++ b/sha2/Cargo.toml
@@ -11,11 +11,9 @@ repository.workspace = true
 readme.workspace = true
 
 [features]
-default = ["hacl"]
-hacl = ["dep:libcrux-hacl-rs"]
-expose-hacl = ["hacl"]
+expose-hacl = []
 
 [dependencies]
-libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs", optional = true }
+libcrux-hacl-rs = { version = "=0.0.2-beta.2", path = "../hacl-rs" }
 libcrux-traits = { version = "=0.0.2-beta.2", path = "../traits/" }
 libcrux-macros = { version = "=0.0.2-beta.2", path = "../macros" }
diff --git a/sha2/src/lib.rs b/sha2/src/lib.rs
index 0231fd743..7e2407b18 100644
--- a/sha2/src/lib.rs
+++ b/sha2/src/lib.rs
@@ -13,16 +13,15 @@ pub const SHA384_LENGTH: usize = 48;
 pub const SHA512_LENGTH: usize = 64;
 
 /// The generated hacl code
-#[cfg(all(feature = "hacl", not(feature = "expose-hacl")))]
+#[cfg(not(feature = "expose-hacl"))]
 mod hacl;
 
+/// The generated hacl code
 #[cfg(feature = "expose-hacl")]
 pub mod hacl;
 
 /// The implementation of our types using that hacl code
-#[cfg(feature = "hacl")]
 mod impl_hacl;
 
 /// use it if we want to use hacl
-#[cfg(feature = "hacl")]
 pub use impl_hacl::*;