diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ba0b0cf..752dc8a3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -367,7 +367,7 @@ endif()
 if(BUILD_LIBCRUX)
     add_library(libcrux_static STATIC ${LIBCRUX_SOURCES})
     if(NOT MSVC)
-        target_compile_options(libcrux_static PRIVATE -g -Wall -Wextra -pedantic)
+        target_compile_options(libcrux_static PRIVATE -g -Wall -Wextra -pedantic -Wshadow)
     endif()
 endif()
 
diff --git a/libcrux/include/Eurydice.h b/libcrux/include/Eurydice.h
index 068068cd..d86dcc05 100644
--- a/libcrux/include/Eurydice.h
+++ b/libcrux/include/Eurydice.h
@@ -1,7 +1,7 @@
 /* 
   This file was generated by KaRaMeL <https://github.com/FStarLang/karamel>
-  KaRaMeL invocation: /Users/jonathan/Code/eurydice/eurydice ../libcrux_kyber.llbc
-  F* version: 71f2d632
+  KaRaMeL invocation: /Users/franziskus/repos/eurydice//eurydice ../libcrux_kyber.llbc
+  F* version: d0aa54cf
   KaRaMeL version: 8e0595bd
  */
 
diff --git a/libcrux/include/libcrux_kyber.h b/libcrux/include/libcrux_kyber.h
index f8c8d139..e0050d85 100644
--- a/libcrux/include/libcrux_kyber.h
+++ b/libcrux/include/libcrux_kyber.h
@@ -1,7 +1,7 @@
 /*
   This file was generated by KaRaMeL <https://github.com/FStarLang/karamel>
-  KaRaMeL invocation: /Users/jonathan/Code/eurydice/eurydice
-  ../libcrux_kyber.llbc F* version: 71f2d632 KaRaMeL version: 8e0595bd
+  KaRaMeL invocation: /Users/franziskus/repos/eurydice//eurydice
+  ../libcrux_kyber.llbc F* version: d0aa54cf KaRaMeL version: 8e0595bd
  */
 
 #ifndef __libcrux_kyber_H
diff --git a/libcrux/src/Eurydice.c b/libcrux/src/Eurydice.c
index 60dd8891..ce09e308 100644
--- a/libcrux/src/Eurydice.c
+++ b/libcrux/src/Eurydice.c
@@ -1,7 +1,7 @@
 /* 
   This file was generated by KaRaMeL <https://github.com/FStarLang/karamel>
-  KaRaMeL invocation: /Users/jonathan/Code/eurydice/eurydice ../libcrux_kyber.llbc
-  F* version: 71f2d632
+  KaRaMeL invocation: /Users/franziskus/repos/eurydice//eurydice ../libcrux_kyber.llbc
+  F* version: d0aa54cf
   KaRaMeL version: 8e0595bd
  */
 
diff --git a/libcrux/src/LowStar_Ignore.c b/libcrux/src/LowStar_Ignore.c
index 18728cc7..9dc60087 100644
--- a/libcrux/src/LowStar_Ignore.c
+++ b/libcrux/src/LowStar_Ignore.c
@@ -1,7 +1,7 @@
 /* 
   This file was generated by KaRaMeL <https://github.com/FStarLang/karamel>
-  KaRaMeL invocation: /Users/jonathan/Code/eurydice/eurydice ../libcrux_kyber.llbc
-  F* version: 71f2d632
+  KaRaMeL invocation: /Users/franziskus/repos/eurydice//eurydice ../libcrux_kyber.llbc
+  F* version: d0aa54cf
   KaRaMeL version: 8e0595bd
  */
 
diff --git a/libcrux/src/libcrux_kyber.c b/libcrux/src/libcrux_kyber.c
index 5a7a4a68..12e04b56 100644
--- a/libcrux/src/libcrux_kyber.c
+++ b/libcrux/src/libcrux_kyber.c
@@ -1,7 +1,7 @@
 /*
   This file was generated by KaRaMeL <https://github.com/FStarLang/karamel>
-  KaRaMeL invocation: /Users/jonathan/Code/eurydice/eurydice
-  ../libcrux_kyber.llbc F* version: 71f2d632 KaRaMeL version: 8e0595bd
+  KaRaMeL invocation: /Users/franziskus/repos/eurydice//eurydice
+  ../libcrux_kyber.llbc F* version: d0aa54cf KaRaMeL version: 8e0595bd
  */
 
 #include "libcrux_kyber.h"
@@ -514,14 +514,14 @@ libcrux_kyber_ntt_ntt_at_layer(size_t* zeta_i,
       size_t round = uu____0.f0;
       zeta_i[0U] = zeta_i[0U] + (size_t)1U;
       size_t offset = round * step * (size_t)2U;
-      core_ops_range_Range__size_t iter =
+      core_ops_range_Range__size_t iter0 =
         core_iter_traits_collect__I__into_iter(
           ((core_ops_range_Range__size_t){ .start = offset,
                                            .end = offset + step }),
           core_ops_range_Range__size_t);
       while (true) {
         core_option_Option__size_t uu____1 =
-          core_iter_range__core__ops__range__Range_A__3__next(&iter, size_t);
+          core_iter_range__core__ops__range__Range_A__3__next(&iter0, size_t);
         if (uu____1.tag == core_option_None)
           break;
         else {
@@ -1008,14 +1008,14 @@ libcrux_kyber_ntt_invert_ntt_at_layer(size_t* zeta_i,
       size_t round = uu____0.f0;
       zeta_i[0U] = zeta_i[0U] - (size_t)1U;
       size_t offset = round * step * (size_t)2U;
-      core_ops_range_Range__size_t iter =
+      core_ops_range_Range__size_t iter0 =
         core_iter_traits_collect__I__into_iter(
           ((core_ops_range_Range__size_t){ .start = offset,
                                            .end = offset + step }),
           core_ops_range_Range__size_t);
       while (true) {
         core_option_Option__size_t uu____1 =
-          core_iter_range__core__ops__range__Range_A__3__next(&iter, size_t);
+          core_iter_range__core__ops__range__Range_A__3__next(&iter0, size_t);
         if (uu____1.tag == core_option_None)
           break;
         else {
@@ -2541,14 +2541,14 @@ libcrux_kyber_matrix_sample_matrix_A___3size_t(uint8_t seed[34U],
       uint8_t seeds[3U][34U];
       for (size_t i = (size_t)0U; i < (size_t)3U; i++)
         memcpy(seeds[i], uu____1, (size_t)34U * sizeof(uint8_t));
-      core_ops_range_Range__size_t iter0 =
+      core_ops_range_Range__size_t iter1 =
         core_iter_traits_collect__I__into_iter(
           ((core_ops_range_Range__size_t){ .start = (size_t)0U,
                                            .end = (size_t)3U }),
           core_ops_range_Range__size_t);
       while (true) {
         core_option_Option__size_t uu____2 =
-          core_iter_range__core__ops__range__Range_A__3__next(&iter0, size_t);
+          core_iter_range__core__ops__range__Range_A__3__next(&iter1, size_t);
         if (uu____2.tag == core_option_None)
           break;
         else {
@@ -2757,12 +2757,12 @@ libcrux_kyber_matrix_compute_As_plus_e___3size_t(int32_t (*matrix_A)[3U][256U],
       lit.start = (size_t)0U;
       lit.end = core_slice___Slice_T___len(
         Eurydice_array_to_slice((size_t)3U, row, int32_t[256U]), int32_t[256U]);
-      core_ops_range_Range__size_t iter =
+      core_ops_range_Range__size_t iter0 =
         core_iter_traits_collect__I__into_iter(lit,
                                                core_ops_range_Range__size_t);
       while (true) {
         core_option_Option__size_t uu____1 =
-          core_iter_range__core__ops__range__Range_A__3__next(&iter, size_t);
+          core_iter_range__core__ops__range__Range_A__3__next(&iter0, size_t);
         if (uu____1.tag == core_option_None)
           break;
         else {
@@ -2776,7 +2776,7 @@ libcrux_kyber_matrix_compute_As_plus_e___3size_t(int32_t (*matrix_A)[3U][256U],
           memcpy(result[i], uu____2, (size_t)256U * sizeof(int32_t));
         }
       }
-      core_ops_range_Range__size_t iter0 =
+      core_ops_range_Range__size_t iter1 =
         core_iter_traits_collect__I__into_iter(
           ((core_ops_range_Range__size_t){
             .start = (size_t)0U,
@@ -2784,7 +2784,7 @@ libcrux_kyber_matrix_compute_As_plus_e___3size_t(int32_t (*matrix_A)[3U][256U],
           core_ops_range_Range__size_t);
       while (true) {
         core_option_Option__size_t uu____3 =
-          core_iter_range__core__ops__range__Range_A__3__next(&iter0, size_t);
+          core_iter_range__core__ops__range__Range_A__3__next(&iter1, size_t);
         if (uu____3.tag == core_option_None)
           break;
         else {
@@ -2835,10 +2835,10 @@ libcrux_kyber_ind_cpa_serialize_secret_key___3size_t_1152size_t(
                  libcrux_kyber_constants_BYTES_PER_RING_ELEMENT }),
         uint8_t,
         core_ops_range_Range__size_t);
-      uint8_t ret[384U];
-      libcrux_kyber_serialize_serialize_uncompressed_ring_element(re, ret);
+      uint8_t ret0[384U];
+      libcrux_kyber_serialize_serialize_uncompressed_ring_element(re, ret0);
       core_slice___Slice_T___copy_from_slice(
-        uu____1, Eurydice_array_to_slice((size_t)384U, ret, uint8_t), uint8_t);
+        uu____1, Eurydice_array_to_slice((size_t)384U, ret0, uint8_t), uint8_t);
     }
   }
   uint8_t uu____2[1152U];
@@ -3262,12 +3262,12 @@ libcrux_kyber_matrix_compute_vector_u___3size_t(int32_t (*a_as_ntt)[3U][256U],
       lit.start = (size_t)0U;
       lit.end = core_slice___Slice_T___len(
         Eurydice_array_to_slice((size_t)3U, row, int32_t[256U]), int32_t[256U]);
-      core_ops_range_Range__size_t iter =
+      core_ops_range_Range__size_t iter0 =
         core_iter_traits_collect__I__into_iter(lit,
                                                core_ops_range_Range__size_t);
       while (true) {
         core_option_Option__size_t uu____1 =
-          core_iter_range__core__ops__range__Range_A__3__next(&iter, size_t);
+          core_iter_range__core__ops__range__Range_A__3__next(&iter0, size_t);
         if (uu____1.tag == core_option_None)
           break;
         else {
@@ -3284,7 +3284,7 @@ libcrux_kyber_matrix_compute_vector_u___3size_t(int32_t (*a_as_ntt)[3U][256U],
       int32_t uu____3[256U];
       libcrux_kyber_ntt_invert_ntt_montgomery___3size_t(result[i], uu____3);
       memcpy(result[i], uu____3, (size_t)256U * sizeof(int32_t));
-      core_ops_range_Range__size_t iter0 =
+      core_ops_range_Range__size_t iter1 =
         core_iter_traits_collect__I__into_iter(
           ((core_ops_range_Range__size_t){
             .start = (size_t)0U,
@@ -3292,7 +3292,7 @@ libcrux_kyber_matrix_compute_vector_u___3size_t(int32_t (*a_as_ntt)[3U][256U],
           core_ops_range_Range__size_t);
       while (true) {
         core_option_Option__size_t uu____4 =
-          core_iter_range__core__ops__range__Range_A__3__next(&iter0, size_t);
+          core_iter_range__core__ops__range__Range_A__3__next(&iter1, size_t);
         if (uu____4.tag == core_option_None)
           break;
         else {
@@ -3581,11 +3581,11 @@ libcrux_kyber_ind_cpa_compress_then_serialize_u___3size_t_960size_t_10size_t_320
           .end = (i + (size_t)1U) * ((size_t)960U / (size_t)3U) }),
         uint8_t,
         core_ops_range_Range__size_t);
-      uint8_t ret[320U];
+      uint8_t ret0[320U];
       libcrux_kyber_serialize_compress_then_serialize_ring_element_u___10size_t_320size_t(
-        re, ret);
+        re, ret0);
       core_slice___Slice_T___copy_from_slice(
-        uu____1, Eurydice_array_to_slice((size_t)320U, ret, uint8_t), uint8_t);
+        uu____1, Eurydice_array_to_slice((size_t)320U, ret0, uint8_t), uint8_t);
     }
   }
   uint8_t uu____2[960U];