diff --git a/.github/workflows/check_csdk_build_parameters.yml b/.github/workflows/check_csdk_build_parameters.yml
index 96e187d2..f3f9c4ee 100644
--- a/.github/workflows/check_csdk_build_parameters.yml
+++ b/.github/workflows/check_csdk_build_parameters.yml
@@ -13,7 +13,7 @@ jobs:
   check_csdk_build_parameters:
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder:latest
+      image: jcaporossi/test-devtools:latest
     strategy:
       matrix:
         target: ["nanox", "nanosplus", "stax", "flex", "apex_p"]
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 599b1701..e4afca87 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
     name: Run static analysis
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-dev-tools:latest
+      image: jcaporossi/test-devtools:latest
     strategy:
       matrix:
         target: ["nanox", "nanosplus", "stax", "flex", "apex_p"]
@@ -35,7 +35,7 @@ jobs:
     name: Check code formatting
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-dev-tools:latest
+      image: jcaporossi/test-devtools:latest
     steps:
       - name: Clone
         uses: actions/checkout@v4
@@ -47,7 +47,7 @@ jobs:
     name: Build SDK
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-dev-tools:latest
+      image: jcaporossi/test-devtools:latest
     strategy:
       matrix:
         target: ["nanox", "nanosplus", "stax", "flex", "apex_p"]
@@ -66,7 +66,7 @@ jobs:
     name: Run unit and integration tests
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-dev-tools:latest
+      image: jcaporossi/test-devtools:latest
     strategy:
       matrix:
         target: ["nanox", "nanosplus", "stax", "flex", "apex_p"]
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 60809c62..09f5784c 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -20,7 +20,7 @@ jobs:
         contents: read
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-dev-tools:latest
+      image: jcaporossi/test-devtools:latest
     steps:
       - name: Clone
         uses: actions/checkout@v4
diff --git a/.github/workflows/reusable_build_all_apps.yml b/.github/workflows/reusable_build_all_apps.yml
index f8fd8db3..39e69b21 100644
--- a/.github/workflows/reusable_build_all_apps.yml
+++ b/.github/workflows/reusable_build_all_apps.yml
@@ -77,7 +77,7 @@ jobs:
               include: ${{ fromJSON(needs.retrieve-rust-apps.outputs.rust_apps) }}
         runs-on: ubuntu-latest
         container:
-            image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder:latest
+            image: jcaporossi/test-devtools:latest
         steps:
             - name: Install ledgered
               run: pip install ledgered --break-system-packages
diff --git a/ledger_device_sdk/src/ecc.rs b/ledger_device_sdk/src/ecc.rs
index 7730ab16..0976e5ae 100644
--- a/ledger_device_sdk/src/ecc.rs
+++ b/ledger_device_sdk/src/ecc.rs
@@ -189,7 +189,7 @@ impl<const N: usize, const TY: char> ECPrivateKey<N, TY> {
     /// [here](https://blog.rust-lang.org/inside-rust/2021/09/06/Splitting-const-generics.html#featuregeneric_const_exprs)
     pub fn public_key(&self) -> Result<ECPublicKey<{ Self::P }, TY>, CxError>
     where
-        [(); Self::P]:,
+        [(); Self::P]: Sized,
     {
         let mut pubkey = ECPublicKey::<{ Self::P }, TY>::new(self.curve);
         let err = unsafe {
diff --git a/ledger_device_sdk/src/io_legacy.rs b/ledger_device_sdk/src/io_legacy.rs
index 80aa84a5..fd22a693 100644
--- a/ledger_device_sdk/src/io_legacy.rs
+++ b/ledger_device_sdk/src/io_legacy.rs
@@ -472,7 +472,7 @@ impl Comm {
                         G_ux_params.u.pairing_request.pairing_info_len = (_len - 2) as u32;
                         for i in 0..G_ux_params.u.pairing_request.pairing_info_len as usize {
                             G_ux_params.u.pairing_request.pairing_info[i as usize] =
-                                seph_buffer[5 + i] as i8;
+                                seph_buffer[5 + i] as core::ffi::c_char;
                         }
                         G_ux_params.u.pairing_request.pairing_info
                             [G_ux_params.u.pairing_request.pairing_info_len as usize] = 0;
diff --git a/ledger_device_sdk/src/libcall/swap.rs b/ledger_device_sdk/src/libcall/swap.rs
index 8b325e76..86bf1a29 100644
--- a/ledger_device_sdk/src/libcall/swap.rs
+++ b/ledger_device_sdk/src/libcall/swap.rs
@@ -205,7 +205,8 @@ pub fn get_check_address_params<
     }
 
     debug_print("==> GET_REF_ADDRESS\n");
-    let (address, address_len) = read_c_string::<ADDRESS_BUF_SIZE>(params.address_to_check);
+    let (address, address_len) =
+        read_c_string::<ADDRESS_BUF_SIZE>(params.address_to_check as *const i8);
     check_address_params.ref_address = address;
     check_address_params.ref_address_len = address_len;
 
@@ -274,7 +275,7 @@ pub fn get_printable_amount_params<
     debug_print("==> GET_AMOUNT_STR\n");
     printable_amount_params.amount_str = unsafe {
         &(*(libarg.__bindgen_anon_1.get_printable_amount as *mut get_printable_amount_parameters_t))
-            .printable_amount as *const i8 as *mut i8
+            .printable_amount as *const core::ffi::c_char as *mut i8
     };
 
     printable_amount_params
@@ -340,13 +341,15 @@ pub fn sign_tx_params<
     }
 
     debug_print("==> GET_DESTINATION_ADDRESS\n");
-    let (address, address_len) = read_c_string::<ADDRESS_BUF_SIZE>(params.destination_address);
+    let (address, address_len) =
+        read_c_string::<ADDRESS_BUF_SIZE>(params.destination_address as *const i8);
     create_tx_params.dest_address = address;
     create_tx_params.dest_address_len = address_len;
 
     debug_print("==> GET_DESTINATION_ADDRESS_EXTRA_ID\n");
-    let (extra_id, extra_id_len) =
-        read_c_string::<ADDRESS_EXTRA_ID_BUF_SIZE>(params.destination_address_extra_id);
+    let (extra_id, extra_id_len) = read_c_string::<ADDRESS_EXTRA_ID_BUF_SIZE>(
+        params.destination_address_extra_id as *const i8,
+    );
     create_tx_params.dest_address_extra_id = extra_id;
     create_tx_params.dest_address_extra_id_len = extra_id_len;
 
diff --git a/ledger_device_sdk/src/nbgl.rs b/ledger_device_sdk/src/nbgl.rs
index 335233a1..a6d17903 100644
--- a/ledger_device_sdk/src/nbgl.rs
+++ b/ledger_device_sdk/src/nbgl.rs
@@ -228,8 +228,8 @@ impl From<&Field<'_>> for CField {
 impl From<&CField> for nbgl_contentTagValue_t {
     fn from(field: &CField) -> nbgl_contentTagValue_t {
         nbgl_contentTagValue_t {
-            item: (*field).name.as_ptr() as *const i8,
-            value: (*field).value.as_ptr() as *const i8,
+            item: (*field).name.as_ptr() as *const ::core::ffi::c_char,
+            value: (*field).value.as_ptr() as *const ::core::ffi::c_char,
             ..Default::default()
         }
     }
diff --git a/ledger_device_sdk/src/nbgl/nbgl_advance_review.rs b/ledger_device_sdk/src/nbgl/nbgl_advance_review.rs
index 0db80fe8..b22046bc 100644
--- a/ledger_device_sdk/src/nbgl/nbgl_advance_review.rs
+++ b/ledger_device_sdk/src/nbgl/nbgl_advance_review.rs
@@ -161,10 +161,10 @@ impl<'a> NbglAdvanceReview<'a> {
             let warning_details = match &self.warning_details_type {
                 Some(w) => nbgl_warning_t {
                     predefinedSet: (1u32 << W3C_RISK_DETECTED_WARN),
-                    dAppProvider: w.dapp_provider_name.as_ptr() as *const i8,
-                    reportUrl: w.report_url.as_ptr() as *const i8,
-                    reportProvider: w.report_provider.as_ptr() as *const i8,
-                    providerMessage: w.provider_message.as_ptr() as *const i8,
+                    dAppProvider: w.dapp_provider_name.as_ptr() as *const ::core::ffi::c_char,
+                    reportUrl: w.report_url.as_ptr() as *const ::core::ffi::c_char,
+                    reportProvider: w.report_provider.as_ptr() as *const ::core::ffi::c_char,
+                    providerMessage: w.provider_message.as_ptr() as *const ::core::ffi::c_char,
                     ..Default::default()
                 },
                 None => nbgl_warning_t::default(),
diff --git a/ledger_device_sdk/src/nbgl/nbgl_generic_settings.rs b/ledger_device_sdk/src/nbgl/nbgl_generic_settings.rs
index 0e451d09..89028bdd 100644
--- a/ledger_device_sdk/src/nbgl/nbgl_generic_settings.rs
+++ b/ledger_device_sdk/src/nbgl/nbgl_generic_settings.rs
@@ -87,8 +87,8 @@ impl NbglGenericSettings {
         }
 
         self.info_list = Some(nbgl_contentInfoList_t {
-            infoTypes: self.info.fields_ptr[..].as_ptr(),
-            infoContents: self.info.values_ptr[..].as_ptr(),
+            infoTypes: self.info.fields_ptr[..].as_ptr() as *const *const ::core::ffi::c_char,
+            infoContents: self.info.values_ptr[..].as_ptr() as *const *const ::core::ffi::c_char,
             nbInfos: fields_values.len() as u8,
             infoExtensions: core::ptr::null(),
             token: 0,
diff --git a/ledger_device_sdk/src/nbgl/nbgl_review.rs b/ledger_device_sdk/src/nbgl/nbgl_review.rs
index e8f5f33f..ab75a909 100644
--- a/ledger_device_sdk/src/nbgl/nbgl_review.rs
+++ b/ledger_device_sdk/src/nbgl/nbgl_review.rs
@@ -113,8 +113,8 @@ impl<'a> NbglReview<'a> {
             let mut tag_value_array: Vec<nbgl_contentTagValue_t> = Vec::new();
             for field in v.iter() {
                 let val = nbgl_contentTagValue_t {
-                    item: field.name.as_ptr() as *const i8,
-                    value: field.value.as_ptr() as *const i8,
+                    item: field.name.as_ptr() as *const ::core::ffi::c_char,
+                    value: field.value.as_ptr() as *const ::core::ffi::c_char,
                     ..Default::default()
                 };
                 tag_value_array.push(val);
diff --git a/ledger_device_sdk/src/nbgl/nbgl_streaming_review.rs b/ledger_device_sdk/src/nbgl/nbgl_streaming_review.rs
index 58ac9f4c..4c2a4d37 100644
--- a/ledger_device_sdk/src/nbgl/nbgl_streaming_review.rs
+++ b/ledger_device_sdk/src/nbgl/nbgl_streaming_review.rs
@@ -145,10 +145,13 @@ impl NbglStreamingReview {
                     Some(w) => {
                         let warning_details = nbgl_warning_t {
                             predefinedSet: (1u32 << W3C_RISK_DETECTED_WARN),
-                            dAppProvider: w.dapp_provider_name.as_ptr() as *const i8,
-                            reportUrl: w.report_url.as_ptr() as *const i8,
-                            reportProvider: w.report_provider.as_ptr() as *const i8,
-                            providerMessage: w.provider_message.as_ptr() as *const i8,
+                            dAppProvider: w.dapp_provider_name.as_ptr()
+                                as *const ::core::ffi::c_char,
+                            reportUrl: w.report_url.as_ptr() as *const ::core::ffi::c_char,
+                            reportProvider: w.report_provider.as_ptr()
+                                as *const ::core::ffi::c_char,
+                            providerMessage: w.provider_message.as_ptr()
+                                as *const ::core::ffi::c_char,
                             ..Default::default()
                         };
                         nbgl_useCaseAdvancedReviewStreamingStart(
@@ -218,8 +221,8 @@ impl NbglStreamingReview {
             let mut tag_value_array: Vec<nbgl_contentTagValue_t> = Vec::new();
             for field in v.iter() {
                 let val = nbgl_contentTagValue_t {
-                    item: field.name.as_ptr() as *const i8,
-                    value: field.value.as_ptr() as *const i8,
+                    item: field.name.as_ptr() as *const ::core::ffi::c_char,
+                    value: field.value.as_ptr() as *const ::core::ffi::c_char,
                     ..Default::default()
                 };
                 tag_value_array.push(val);
@@ -271,8 +274,8 @@ impl NbglStreamingReview {
             let mut tag_value_array: Vec<nbgl_contentTagValue_t> = Vec::new();
             for field in v.iter() {
                 let val = nbgl_contentTagValue_t {
-                    item: field.name.as_ptr() as *const i8,
-                    value: field.value.as_ptr() as *const i8,
+                    item: field.name.as_ptr() as *const ::core::ffi::c_char,
+                    value: field.value.as_ptr() as *const ::core::ffi::c_char,
                     ..Default::default()
                 };
                 tag_value_array.push(val);
diff --git a/ledger_secure_sdk_sys/devices/apex_p/apex_p.json b/ledger_secure_sdk_sys/devices/apex_p/apex_p.json
index f4931197..38cf2708 100644
--- a/ledger_secure_sdk_sys/devices/apex_p/apex_p.json
+++ b/ledger_secure_sdk_sys/devices/apex_p/apex_p.json
@@ -9,6 +9,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv8m.main-none-eabi",
+  "llvm-floatabi": "soft",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "pre-link-args": {
@@ -23,7 +24,7 @@
   },
   "relocation-model": "ropi-rwpi",
   "singlethread": true,
-  "target-pointer-width": "32",
+  "target-pointer-width": 32,
   "os": "apex_p",
   "target-family": [ "bolos" ]
 }
diff --git a/ledger_secure_sdk_sys/devices/flex/flex.json b/ledger_secure_sdk_sys/devices/flex/flex.json
index e4039ab9..a54b8bf8 100644
--- a/ledger_secure_sdk_sys/devices/flex/flex.json
+++ b/ledger_secure_sdk_sys/devices/flex/flex.json
@@ -9,6 +9,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv8m.main-none-eabi",
+  "llvm-floatabi": "soft",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "pre-link-args": {
@@ -23,7 +24,7 @@
   },
   "relocation-model": "ropi-rwpi",
   "singlethread": true,
-  "target-pointer-width": "32",
+  "target-pointer-width": 32,
   "os": "flex",
   "target-family": [ "bolos" ]
 }
diff --git a/ledger_secure_sdk_sys/devices/nanosplus/nanosplus.json b/ledger_secure_sdk_sys/devices/nanosplus/nanosplus.json
index 5f3d2030..4507d7cf 100644
--- a/ledger_secure_sdk_sys/devices/nanosplus/nanosplus.json
+++ b/ledger_secure_sdk_sys/devices/nanosplus/nanosplus.json
@@ -9,6 +9,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv8m.main-none-eabi",
+  "llvm-floatabi": "soft",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "pre-link-args": {
@@ -23,7 +24,7 @@
   },
   "relocation-model": "ropi-rwpi",
   "singlethread": true,
-  "target-pointer-width": "32",
+  "target-pointer-width": 32,
   "os": "nanosplus",
   "target-family": [ "bolos" ]
 }
diff --git a/ledger_secure_sdk_sys/devices/nanox/nanox.json b/ledger_secure_sdk_sys/devices/nanox/nanox.json
index 245672ec..63d26d93 100644
--- a/ledger_secure_sdk_sys/devices/nanox/nanox.json
+++ b/ledger_secure_sdk_sys/devices/nanox/nanox.json
@@ -10,6 +10,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv6m-none-eabi",
+  "llvm-floatabi": "soft",
   "panic-strategy": "abort",
   "pre-link-args": {
     "ld.lld": [
@@ -23,7 +24,7 @@
   },
   "relocation-model": "ropi-rwpi",
   "singlethread": true,
-  "target-pointer-width": "32",
+  "target-pointer-width": 32,
   "os": "nanox",
   "target-family": [ "bolos" ]
 }
diff --git a/ledger_secure_sdk_sys/devices/stax/stax.json b/ledger_secure_sdk_sys/devices/stax/stax.json
index 035c1e11..7192498b 100644
--- a/ledger_secure_sdk_sys/devices/stax/stax.json
+++ b/ledger_secure_sdk_sys/devices/stax/stax.json
@@ -9,6 +9,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv8m.main-none-eabi",
+  "llvm-floatabi": "soft",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "pre-link-args": {
@@ -23,7 +24,7 @@
   },
   "relocation-model": "ropi-rwpi",
   "singlethread": true,
-  "target-pointer-width": "32",
+  "target-pointer-width": 32,
   "os": "stax",
   "target-family": [ "bolos" ]
 }
diff --git a/ledger_secure_sdk_sys/src/lib.rs b/ledger_secure_sdk_sys/src/lib.rs
index 0759acae..bf64a9c8 100644
--- a/ledger_secure_sdk_sys/src/lib.rs
+++ b/ledger_secure_sdk_sys/src/lib.rs
@@ -2,6 +2,7 @@
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]
+#![allow(unnecessary_transmutes)]
 
 use core::ffi::c_void;
 #[cfg(all(feature = "heap"))]
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index a9c14142..132a2886 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "nightly-2024-12-01"
\ No newline at end of file
+channel = "nightly-2025-10-24"
\ No newline at end of file