diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 89f714a..d372b24 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,6 +18,7 @@ jobs:
         rust: [stable, beta]
     steps:
       - uses: actions/checkout@v4
+
       
       - name: Install Rust ${{ matrix.rust }}
         uses: dtolnay/rust-toolchain@master
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 97bd40f..f580d7f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,6 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -30,6 +31,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -62,6 +64,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -95,6 +98,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/clippy.yml b/.github/workflows/clippy.yml
index 2fc980b..c72556b 100644
--- a/.github/workflows/clippy.yml
+++ b/.github/workflows/clippy.yml
@@ -15,6 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index da7ed50..0acb6f5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,6 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
       
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
diff --git a/Cargo.lock b/Cargo.lock
index da95048..e742020 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -126,9 +126,9 @@ checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
 
 [[package]]
 name = "arrayvec"
-version = "0.7.6"
+version = "0.7.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
+checksum = "f02882884d3e1bc524fb12c79f107f6ad0e1cfd498c536ffb494301740995dfe"
 
 [[package]]
 name = "assert_cmd"
@@ -430,9 +430,9 @@ dependencies = [
 
 [[package]]
 name = "bitvec"
-version = "1.0.1"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bc2832c24239b0141d5674bb9174f9d68a8b5b3f2753311927c172ca46f7e9c"
+checksum = "ddcec3d12c579d40898fe0a9a358a803c23e9c52ca3c425707f81c9436211837"
 dependencies = [
  "funty",
  "radium",
@@ -528,19 +528,20 @@ dependencies = [
 
 [[package]]
 name = "borsh"
-version = "1.6.0"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d1da5ab77c1437701eeff7c88d968729e7766172279eab0676857b3d63af7a6f"
+checksum = "2f3f6da4992df95bbcd9af42a6c7dcb994498fc9048230405f3b36ff7cd3f145"
 dependencies = [
  "borsh-derive",
+ "bytes",
  "cfg_aliases",
 ]
 
 [[package]]
 name = "borsh-derive"
-version = "1.6.0"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0686c856aa6aac0c4498f936d7d6a02df690f614c03e4d906d1018062b5c5e2c"
+checksum = "3ae8fb4fb5740e4b2c4884ff95f5f32f5e8479db1e8fd8eb49ddbe09eb09bb7c"
 dependencies = [
  "once_cell",
  "proc-macro-crate",
@@ -799,9 +800,9 @@ dependencies = [
 
 [[package]]
 name = "crc-catalog"
-version = "2.4.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
+checksum = "217698eaf96b4a3f0bc4f3662aaa55bdf913cd54d7204591faa790070c6d0853"
 
 [[package]]
 name = "crc32fast"
@@ -2081,9 +2082,9 @@ checksum = "6800badb6cb2082ffd7b6a67e6125bb39f18782f793520caee8cb8846be06112"
 
 [[package]]
 name = "libfuse-fs"
-version = "0.1.13"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d61be2a0235d6a5ba30064c172f12d5465da0f013281a0e6675604d0781496e9"
+checksum = "818b22fed635a8c39500037246a136595ac01fdc00c029dce59b42f6bd800f39"
 dependencies = [
  "async-trait",
  "bitflags 2.11.0",
@@ -2150,9 +2151,9 @@ dependencies = [
 
 [[package]]
 name = "libz-sys"
-version = "1.1.24"
+version = "1.1.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4735e9cbde5aac84a5ce588f6b23a90b9b0b528f6c5a8db8a4aff300463a0839"
+checksum = "85bc9657773828b90eeb625adff10eeac83cc21bbfd8e23a03eaa8a33c9e28d9"
 dependencies = [
  "cc",
  "pkg-config",
@@ -2216,6 +2217,17 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"
 
+[[package]]
+name = "mac_address"
+version = "1.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0aeb26bf5e836cc1c341c8106051b573f1766dfa05aa87f0b98be5e51b02303"
+dependencies = [
+ "nix",
+ "serde",
+ "winapi",
+]
+
 [[package]]
 name = "matchers"
 version = "0.2.0"
@@ -2417,7 +2429,7 @@ dependencies = [
  "num-integer",
  "num-iter",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.8.6",
  "smallvec",
  "zeroize",
 ]
@@ -2691,9 +2703,9 @@ checksum = "9b4f627cb1b25917193a259e49bdad08f671f8d9708acfd5fe0a8c1455d87220"
 
 [[package]]
 name = "pgvector"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc58e2d255979a31caa7cabfa7aac654af0354220719ab7a68520ae7a91e8c0b"
+checksum = "3673cba5b9a124916096a423b806a9f29620972c6c97b08db5f2053e9428b481"
 dependencies = [
  "serde",
 ]
@@ -2835,9 +2847,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro-crate"
-version = "3.4.0"
+version = "3.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "219cb19e96be00ab2e37d6e299658a0cfa83e52429179969b0f0121b4ac46983"
+checksum = "e67ba7e9b2b56446f1d419b1d807906278ffa1a658a8a5d8a39dcb1f5a78614f"
 dependencies = [
  "toml_edit",
 ]
@@ -3037,9 +3049,9 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.8.5"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+checksum = "5ca0ecfa931c29007047d1bc58e623ab12e5590e8c7cc53200d5202b69266d8a"
 dependencies = [
  "libc",
  "rand_chacha 0.3.1",
@@ -3096,9 +3108,9 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "1.11.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "368f01d005bf8fd9b1206fb6fa653e6c4a81ceb1466406b81792d87c5677a58f"
+checksum = "fb39b166781f92d482534ef4b4b1b2568f42613b53e5b6c160e24cfbfa30926d"
 dependencies = [
  "either",
  "rayon-core",
@@ -3290,9 +3302,9 @@ dependencies = [
 
 [[package]]
 name = "rfuse3"
-version = "0.0.8"
+version = "0.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5d7bea55817b58bd3a706ac0671f9aedc06d2d91e2f68272bd4fbe62f817d2b"
+checksum = "f6edadac8a81eefae9a2c3ad55cb5af4b8421cb27e44bc8a3334916973582bd2"
 dependencies = [
  "aligned_box",
  "async-notify",
@@ -3377,18 +3389,19 @@ dependencies = [
 
 [[package]]
 name = "rust_decimal"
-version = "1.40.0"
+version = "1.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61f703d19852dbf87cbc513643fa81428361eb6940f1ac14fd58155d295a3eb0"
+checksum = "be2a24f50780bc85f09cc6ac299bdf1424302742d77221106859c9d8b102126a"
 dependencies = [
  "arrayvec",
  "borsh",
  "bytes",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.8.6",
  "rkyv",
  "serde",
  "serde_json",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -3589,7 +3602,7 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "scorpiofs"
-version = "0.2.2"
+version = "0.2.3"
 dependencies = [
  "assert_cmd",
  "async-recursion",
@@ -3652,9 +3665,9 @@ dependencies = [
 
 [[package]]
 name = "sea-orm"
-version = "1.1.19"
+version = "1.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d945f62558fac19e5988680d2fdf747b734c2dbc6ce2cb81ba33ed8dde5b103"
+checksum = "2dc312fedd460a47ea563911761d254a84e7b51d8cc73ec92c929e78f33fa957"
 dependencies = [
  "async-stream",
  "async-trait",
@@ -3663,6 +3676,7 @@ dependencies = [
  "derive_more",
  "futures-util",
  "log",
+ "mac_address",
  "ouroboros",
  "pgvector",
  "rust_decimal",
@@ -3682,9 +3696,9 @@ dependencies = [
 
 [[package]]
 name = "sea-orm-macros"
-version = "1.1.19"
+version = "1.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c2e64a50a9cc8339f10a27577e10062c7f995488e469f2c95762c5ee847832"
+checksum = "9b9a3f90e336ec74803e8eb98c61bc98754c1adfba3b4f84d946237b752b1c88"
 dependencies = [
  "heck 0.5.0",
  "proc-macro2",
@@ -3963,9 +3977,9 @@ dependencies = [
 
 [[package]]
 name = "simd-adler32"
-version = "0.3.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e320a6c5ad31d271ad523dcf3ad13e2767ad8b1cb8f047f75a8aeaf8da139da2"
+checksum = "703d5c7ef118737c72f1af64ad2f6f8c5e1921f818cdcb97b8fe6fc69bf66214"
 
 [[package]]
 name = "simdutf8"
@@ -4157,7 +4171,7 @@ dependencies = [
  "memchr",
  "once_cell",
  "percent-encoding",
- "rand 0.8.5",
+ "rand 0.8.6",
  "rsa",
  "rust_decimal",
  "serde",
@@ -4201,7 +4215,7 @@ dependencies = [
  "memchr",
  "num-bigint",
  "once_cell",
- "rand 0.8.5",
+ "rand 0.8.6",
  "rust_decimal",
  "serde",
  "serde_json",
@@ -4627,7 +4641,7 @@ dependencies = [
  "indexmap 2.13.0",
  "serde_core",
  "serde_spanned",
- "toml_datetime",
+ "toml_datetime 0.7.5+spec-1.1.0",
  "toml_parser",
  "toml_writer",
  "winnow",
@@ -4642,14 +4656,23 @@ dependencies = [
  "serde_core",
 ]
 
+[[package]]
+name = "toml_datetime"
+version = "1.1.1+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3165f65f62e28e0115a00b2ebdd37eb6f3b641855f9d636d3cd4103767159ad7"
+dependencies = [
+ "serde_core",
+]
+
 [[package]]
 name = "toml_edit"
-version = "0.23.10+spec-1.0.0"
+version = "0.25.4+spec-1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c8b9f757e028cee9fa244aea147aab2a9ec09d5325a9b01e0a49730c2b5269"
+checksum = "7193cbd0ce53dc966037f54351dbbcf0d5a642c7f0038c382ef9e677ce8c13f2"
 dependencies = [
  "indexmap 2.13.0",
- "toml_datetime",
+ "toml_datetime 1.1.1+spec-1.1.0",
  "toml_parser",
  "winnow",
 ]
@@ -4852,9 +4875,9 @@ checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 
 [[package]]
 name = "typenum"
-version = "1.19.0"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "562d481066bde0658276a35467c4af00bdc6ee726305698a55b86e61d7ad82bb"
+checksum = "b6f5e870be6c3b371b77fe0ee0bafb859fa4964b4404c27de1d380043c4dda20"
 
 [[package]]
 name = "unicode-bidi"
@@ -5084,6 +5107,7 @@ dependencies = [
  "cfg-if",
  "once_cell",
  "rustversion",
+ "serde",
  "wasm-bindgen-macro",
  "wasm-bindgen-shared",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index bd42da3..e61a9a5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "scorpiofs"
-version = "0.2.2"
+version = "0.2.3"
 edition = "2021"
 description = "FUSE-based virtual filesystem with Antares overlay for monorepo builds"
 license = "MIT OR Apache-2.0"
@@ -22,7 +22,11 @@ reqwest = { version = "0.13.1", features = ["json", "blocking"] }
 serde = { version = "1.0.228", features = ["derive"] }
 tokio = { version = "1.49.0", features = ["full"] }
 axum = { version = "0.8.8", features = ["macros"] }
-rfuse3 = {  version = "0.0.8", features = ["tokio-runtime", "unprivileged", "file-lock"] }
+rfuse3 = { version = "0.0.9", features = [
+    "tokio-runtime",
+    "unprivileged",
+    "file-lock",
+] }
 clap = { version = "4.5.57", features = ["derive"] }
 
 toml = "0.9.8"
@@ -39,7 +43,7 @@ async-recursion = "1.1.1"
 bytes = "1.11.1"
 futures = "0.3.31"
 uuid = { version = "1.20.0", features = ["v4"] }
-libfuse-fs = { version = "0.1.13"}
+libfuse-fs = "0.1.14"
 whoami = "1.6.0"
 thiserror = "2.0.18"
 crossbeam = "0.8.4"
diff --git a/src/antares/fuse.rs b/src/antares/fuse.rs
index 2d04d66..7eabbad 100644
--- a/src/antares/fuse.rs
+++ b/src/antares/fuse.rs
@@ -1,7 +1,7 @@
 use std::{path::PathBuf, sync::Arc};
 
 use libfuse_fs::{
-    passthrough::{new_passthroughfs_layer, PassthroughArgs},
+    passthrough::new_antares_passthroughfs_layer,
     unionfs::{config::Config, layer::Layer, OverlayFs},
 };
 use tokio::task::JoinHandle;
@@ -49,24 +49,15 @@ impl AntaresFuse {
         let mut lower_layers: Vec<Arc<dyn Layer>> = Vec::new();
 
         if let Some(cl_dir) = &self.cl_dir {
-            let cl_layer = new_passthroughfs_layer(PassthroughArgs {
-                root_dir: cl_dir,
-                mapping: None::<String>,
-            })
-            .await?;
+            let cl_layer = new_antares_passthroughfs_layer(cl_dir).await?;
             lower_layers.push(Arc::new(cl_layer) as Arc<dyn Layer>);
         }
 
         lower_layers.push(self.dic.clone() as Arc<dyn Layer>);
 
         // Upper layer mirrors upper_dir to keep writes separated from lower layers.
-        let upper_layer: Arc<dyn Layer> = Arc::new(
-            new_passthroughfs_layer(PassthroughArgs {
-                root_dir: &self.upper_dir,
-                mapping: None::<String>,
-            })
-            .await?,
-        );
+        let upper_layer: Arc<dyn Layer> =
+            Arc::new(new_antares_passthroughfs_layer(&self.upper_dir).await?);
 
         // passthrough Upper  - readwrite file system over upper dir
         // passthrough CL  - readwrite file system over upper dir
diff --git a/tests/antares_test.rs b/tests/antares_test.rs
index daaef11..e911e9b 100644
--- a/tests/antares_test.rs
+++ b/tests/antares_test.rs
@@ -43,6 +43,9 @@ fn init_config() {
 #[tokio::test]
 async fn test_mount_and_list_registers_instance() {
     init_config();
+    if !fuse_prereqs_available() {
+        return;
+    }
 
     let root = tempdir().unwrap();
     let paths = AntaresPaths::new(
@@ -75,6 +78,9 @@ async fn test_mount_and_list_registers_instance() {
 #[tokio::test]
 async fn test_mount_job_at_custom_path() {
     init_config();
+    if !fuse_prereqs_available() {
+        return;
+    }
 
     let root = tempdir().unwrap();
     let custom_mount = root.path().join("custom_mountpoint");
@@ -117,6 +123,9 @@ async fn test_mount_job_at_custom_path() {
 #[tokio::test]
 async fn test_mount_job_at_multiple_custom_paths() {
     init_config();
+    if !fuse_prereqs_available() {
+        return;
+    }
 
     let root = tempdir().unwrap();
     let paths = AntaresPaths::new(
@@ -161,6 +170,9 @@ async fn test_mount_job_at_multiple_custom_paths() {
 #[tokio::test]
 async fn test_mount_job_at_with_pathbuf() {
     init_config();
+    if !fuse_prereqs_available() {
+        return;
+    }
 
     let root = tempdir().unwrap();
     let paths = AntaresPaths::new(
@@ -421,6 +433,67 @@ async fn test_fuse_multiple_custom_mounts() {
     }
 }
 
+/// Run with:
+///   sudo -E cargo test --test antares_test test_fuse_write_then_metadata -- --exact --ignored --nocapture
+#[tokio::test(flavor = "multi_thread", worker_threads = 4)]
+#[ignore]
+#[serial]
+async fn test_fuse_write_then_metadata() {
+    let test_future = async {
+        init_config();
+
+        if !fuse_prereqs_available() {
+            return;
+        }
+
+        let test_id = Uuid::new_v4();
+        let base = PathBuf::from(format!("/tmp/antares_write_meta_test_{test_id}"));
+        let _ = std::fs::remove_dir_all(&base);
+
+        let mountpoint = base.join("workspace");
+        let paths = AntaresPaths::new(
+            base.join("upper"),
+            base.join("cl"),
+            base.join("mnt"),
+            base.join("state.toml"),
+        );
+        let manager = AntaresManager::new(paths).await;
+
+        let config = manager
+            .mount_job_at("write-meta-test-job", mountpoint.clone(), None)
+            .await
+            .expect("mount_job_at should succeed");
+        sleep(Duration::from_millis(500)).await;
+
+        // Buck2 pattern: write linker_wrapper.sh, then immediate metadata + chmod.
+        let out_dir = config
+            .mountpoint
+            .join("buck-out/v2/gen/linker_wrapper/a83718dde72c05c6");
+        std::fs::create_dir_all(&out_dir).expect("mkdir buck-out path should succeed");
+
+        let script = out_dir.join("linker_wrapper.sh");
+        std::fs::write(&script, b"#!/bin/sh\nexec \"$@\"\n").expect("write should succeed");
+
+        let meta = std::fs::metadata(&script).expect("metadata after write should succeed");
+        assert!(meta.is_file());
+
+        use std::os::unix::fs::PermissionsExt;
+        std::fs::set_permissions(&script, std::fs::Permissions::from_mode(0o755))
+            .expect("set_permissions after write should succeed");
+
+        manager
+            .umount_job("write-meta-test-job")
+            .await
+            .expect("manager umount should succeed");
+        let _ = std::fs::remove_dir_all(&base);
+    };
+
+    match tokio::time::timeout(Duration::from_secs(120), test_future).await {
+        Ok(_) => println!("✓ Test passed"),
+        Err(_) => panic!("Test timed out"),
+    }
+}
+
 /// Test that appending to an existing file on an Antares FUSE mount succeeds.
 ///
 /// This covers the reproduced regression where reopening an existing file with