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-rw-r--r--tvix/Cargo.lock1
-rw-r--r--tvix/Cargo.nix4
-rw-r--r--tvix/Cargo.toml1
-rw-r--r--tvix/store/Cargo.toml1
-rw-r--r--tvix/store/src/composition.rs21
-rw-r--r--tvix/store/src/pathinfoservice/from_addr.rs8
-rw-r--r--tvix/store/src/pathinfoservice/lru.rs20
-rw-r--r--tvix/store/src/proto/tests/pathinfo.rs48
-rw-r--r--tvix/store/src/tests/fixtures.rs138
9 files changed, 119 insertions, 123 deletions
diff --git a/tvix/Cargo.lock b/tvix/Cargo.lock
index eb40901630af..c0c6f1f2432b 100644
--- a/tvix/Cargo.lock
+++ b/tvix/Cargo.lock
@@ -4776,7 +4776,6 @@ dependencies = [
  "ed25519-dalek",
  "futures",
  "hyper-util",
- "lazy_static",
  "lru",
  "mimalloc",
  "nix-compat",
diff --git a/tvix/Cargo.nix b/tvix/Cargo.nix
index 64afa81bdc92..7d25ba51ed17 100644
--- a/tvix/Cargo.nix
+++ b/tvix/Cargo.nix
@@ -15965,10 +15965,6 @@ rec {
             packageId = "hyper-util";
           }
           {
-            name = "lazy_static";
-            packageId = "lazy_static";
-          }
-          {
             name = "lru";
             packageId = "lru";
           }
diff --git a/tvix/Cargo.toml b/tvix/Cargo.toml
index e86ae3a8f93a..6b30e1196c39 100644
--- a/tvix/Cargo.toml
+++ b/tvix/Cargo.toml
@@ -77,7 +77,6 @@ http = "1.1.0"
 hyper-util = "0.1.7"
 indicatif = "0.17.8"
 itertools = "0.12.1"
-lazy_static = "1.5.0"
 lexical-core = "0.8.5"
 libc = "0.2.158"
 lru = "0.12.4"
diff --git a/tvix/store/Cargo.toml b/tvix/store/Cargo.toml
index c19f34bbbcf0..b913aed3be95 100644
--- a/tvix/store/Cargo.toml
+++ b/tvix/store/Cargo.toml
@@ -16,7 +16,6 @@ data-encoding = { workspace = true }
 ed25519 = { workspace = true }
 ed25519-dalek = { workspace = true }
 futures = { workspace = true }
-lazy_static = { workspace = true }
 nix-compat = { path = "../nix-compat", features = ["async"] }
 pin-project-lite = { workspace = true }
 prost = { workspace = true }
diff --git a/tvix/store/src/composition.rs b/tvix/store/src/composition.rs
index a32f22cf7796..063236136fd1 100644
--- a/tvix/store/src/composition.rs
+++ b/tvix/store/src/composition.rs
@@ -1,17 +1,16 @@
-use lazy_static::lazy_static;
+use std::sync::LazyLock;
 
 pub use tvix_castore::composition::*;
 
-lazy_static! {
-    /// The provided registry of tvix_store, which has all the builtin
-    /// tvix_castore (BlobStore/DirectoryStore) and tvix_store
-    /// (PathInfoService) implementations.
-    pub static ref REG: Registry = {
-        let mut reg = Default::default();
-        add_default_services(&mut reg);
-        reg
-    };
-}
+/// The provided registry of tvix_store, which has all the builtin
+/// tvix_castore (BlobStore/DirectoryStore) and tvix_store
+/// (PathInfoService) implementations.
+pub static REG: LazyLock<&'static Registry> = LazyLock::new(|| {
+    let mut reg = Default::default();
+    add_default_services(&mut reg);
+    // explicitly leak to get an &'static, so that we gain `&Registry: Send` from `Registry: Sync`
+    Box::leak(Box::new(reg))
+});
 
 /// Register the builtin services of tvix_castore and tvix_store with the given
 /// registry. This is useful for creating your own registry with the builtin
diff --git a/tvix/store/src/pathinfoservice/from_addr.rs b/tvix/store/src/pathinfoservice/from_addr.rs
index 3dfb08c9e817..683457345c6c 100644
--- a/tvix/store/src/pathinfoservice/from_addr.rs
+++ b/tvix/store/src/pathinfoservice/from_addr.rs
@@ -57,16 +57,14 @@ pub async fn from_addr(
 mod tests {
     use super::from_addr;
     use crate::composition::{Composition, DeserializeWithRegistry, ServiceBuilder, REG};
-    use lazy_static::lazy_static;
     use rstest::rstest;
+    use std::sync::LazyLock;
     use tempfile::TempDir;
     use tvix_castore::blobservice::{BlobService, MemoryBlobServiceConfig};
     use tvix_castore::directoryservice::{DirectoryService, MemoryDirectoryServiceConfig};
 
-    lazy_static! {
-        static ref TMPDIR_REDB_1: TempDir = TempDir::new().unwrap();
-        static ref TMPDIR_REDB_2: TempDir = TempDir::new().unwrap();
-    }
+    static TMPDIR_REDB_1: LazyLock<TempDir> = LazyLock::new(|| TempDir::new().unwrap());
+    static TMPDIR_REDB_2: LazyLock<TempDir> = LazyLock::new(|| TempDir::new().unwrap());
 
     // the gRPC tests below don't fail, because we connect lazily.
 
diff --git a/tvix/store/src/pathinfoservice/lru.rs b/tvix/store/src/pathinfoservice/lru.rs
index 2d8d52e3c9f6..3055d73c22f9 100644
--- a/tvix/store/src/pathinfoservice/lru.rs
+++ b/tvix/store/src/pathinfoservice/lru.rs
@@ -86,22 +86,20 @@ impl ServiceBuilder for LruPathInfoServiceConfig {
 #[cfg(test)]
 mod test {
     use nix_compat::store_path::StorePath;
-    use std::num::NonZeroUsize;
+    use std::{num::NonZeroUsize, sync::LazyLock};
 
     use crate::{
         pathinfoservice::{LruPathInfoService, PathInfo, PathInfoService},
         tests::fixtures::PATH_INFO,
     };
-    use lazy_static::lazy_static;
-
-    lazy_static! {
-        static ref PATHINFO_2: PathInfo = {
-            let mut p = PATH_INFO.clone();
-            p.store_path = StorePath::from_name_and_digest_fixed("dummy", [1; 20]).unwrap();
-            p
-        };
-        static ref PATHINFO_2_DIGEST: [u8; 20] = *PATHINFO_2.store_path.digest();
-    }
+    static PATHINFO_2: LazyLock<PathInfo> = LazyLock::new(|| {
+        let mut p = PATH_INFO.clone();
+        p.store_path = StorePath::from_name_and_digest_fixed("dummy", [1; 20]).unwrap();
+        p
+    });
+
+    static PATHINFO_2_DIGEST: LazyLock<[u8; 20]> =
+        LazyLock::new(|| *PATHINFO_2.store_path.digest());
 
     #[tokio::test]
     async fn evict() {
diff --git a/tvix/store/src/proto/tests/pathinfo.rs b/tvix/store/src/proto/tests/pathinfo.rs
index 320f419b6c59..edda64045f8e 100644
--- a/tvix/store/src/proto/tests/pathinfo.rs
+++ b/tvix/store/src/proto/tests/pathinfo.rs
@@ -1,37 +1,39 @@
+use std::sync::LazyLock;
+
 use crate::pathinfoservice::PathInfo;
 use crate::proto::{self, ValidatePathInfoError};
 use crate::tests::fixtures::{DUMMY_PATH, DUMMY_PATH_DIGEST, DUMMY_PATH_STR};
 use bytes::Bytes;
-use lazy_static::lazy_static;
 use nix_compat::store_path;
 use rstest::rstest;
 use tvix_castore::fixtures::DUMMY_DIGEST;
 use tvix_castore::proto as castorepb;
 use tvix_castore::{DirectoryError, ValidateNodeError};
 
-lazy_static! {
-    /// A valid PathInfo message
-    /// The references in `narinfo.reference_names` aligns with what's in
-    /// `references`.
-    static ref PROTO_PATH_INFO : proto::PathInfo = proto::PathInfo {
-        node: Some(castorepb::Node {
-            node: Some(castorepb::node::Node::Directory(castorepb::DirectoryNode {
-                name: DUMMY_PATH_STR.into(),
-                digest: DUMMY_DIGEST.clone().into(),
-                size: 0,
-            })),
-        }),
-        references: vec![DUMMY_PATH_DIGEST.as_slice().into()],
-        narinfo: Some(proto::NarInfo {
-            nar_size: 0,
-            nar_sha256: DUMMY_DIGEST.clone().into(),
-            signatures: vec![],
-            reference_names: vec![DUMMY_PATH_STR.to_string()],
-            deriver: None,
-            ca: Some(proto::nar_info::Ca { r#type: proto::nar_info::ca::Hash::NarSha256.into(), digest:  DUMMY_DIGEST.clone().into() })
+/// A valid PathInfo message
+/// The references in `narinfo.reference_names` aligns with what's in
+/// `references`.
+static PROTO_PATH_INFO: LazyLock<proto::PathInfo> = LazyLock::new(|| proto::PathInfo {
+    node: Some(castorepb::Node {
+        node: Some(castorepb::node::Node::Directory(castorepb::DirectoryNode {
+            name: DUMMY_PATH_STR.into(),
+            digest: DUMMY_DIGEST.clone().into(),
+            size: 0,
+        })),
+    }),
+    references: vec![DUMMY_PATH_DIGEST.as_slice().into()],
+    narinfo: Some(proto::NarInfo {
+        nar_size: 0,
+        nar_sha256: DUMMY_DIGEST.clone().into(),
+        signatures: vec![],
+        reference_names: vec![DUMMY_PATH_STR.to_string()],
+        deriver: None,
+        ca: Some(proto::nar_info::Ca {
+            r#type: proto::nar_info::ca::Hash::NarSha256.into(),
+            digest: DUMMY_DIGEST.clone().into(),
         }),
-    };
-}
+    }),
+});
 
 #[test]
 fn convert_valid() {
diff --git a/tvix/store/src/tests/fixtures.rs b/tvix/store/src/tests/fixtures.rs
index 91628f2fee79..48edbcb7c232 100644
--- a/tvix/store/src/tests/fixtures.rs
+++ b/tvix/store/src/tests/fixtures.rs
@@ -1,11 +1,10 @@
 use crate::pathinfoservice::PathInfo;
-use lazy_static::lazy_static;
 use nix_compat::nixhash::{CAHash, NixHash};
 use nix_compat::store_path::StorePath;
 use rstest::{self, *};
 use rstest_reuse::*;
 use std::io;
-use std::sync::Arc;
+use std::sync::{Arc, LazyLock};
 use tvix_castore::fixtures::{
     DIRECTORY_COMPLICATED, DIRECTORY_WITH_KEEP, DUMMY_DIGEST, EMPTY_BLOB_CONTENTS,
     EMPTY_BLOB_DIGEST, HELLOWORLD_BLOB_CONTENTS, HELLOWORLD_BLOB_DIGEST,
@@ -19,69 +18,75 @@ use tvix_castore::{
 pub const DUMMY_PATH_STR: &str = "00000000000000000000000000000000-dummy";
 pub const DUMMY_PATH_DIGEST: [u8; 20] = [0; 20];
 
-lazy_static! {
-    pub static ref DUMMY_PATH: StorePath<String> = StorePath::from_name_and_digest_fixed("dummy", DUMMY_PATH_DIGEST).unwrap();
+pub static DUMMY_PATH: LazyLock<StorePath<String>> =
+    LazyLock::new(|| StorePath::from_name_and_digest_fixed("dummy", DUMMY_PATH_DIGEST).unwrap());
 
-    pub static ref CASTORE_NODE_SYMLINK: Node = Node::Symlink {
-        target: "/nix/store/somewhereelse".try_into().unwrap(),
-    };
+pub static CASTORE_NODE_SYMLINK: LazyLock<Node> = LazyLock::new(|| Node::Symlink {
+    target: "/nix/store/somewhereelse".try_into().unwrap(),
+});
 
-    /// The NAR representation of a symlink pointing to `/nix/store/somewhereelse`
-    pub static ref NAR_CONTENTS_SYMLINK: Vec<u8> = vec![
-        13, 0, 0, 0, 0, 0, 0, 0, b'n', b'i', b'x', b'-', b'a', b'r', b'c', b'h', b'i', b'v', b'e', b'-', b'1', 0,
-        0, 0, // "nix-archive-1"
+/// The NAR representation of a symlink pointing to `/nix/store/somewhereelse`
+pub static NAR_CONTENTS_SYMLINK: LazyLock<Vec<u8>> = LazyLock::new(|| {
+    vec![
+        13, 0, 0, 0, 0, 0, 0, 0, b'n', b'i', b'x', b'-', b'a', b'r', b'c', b'h', b'i', b'v', b'e',
+        b'-', b'1', 0, 0, 0, // "nix-archive-1"
         1, 0, 0, 0, 0, 0, 0, 0, b'(', 0, 0, 0, 0, 0, 0, 0, // "("
         4, 0, 0, 0, 0, 0, 0, 0, b't', b'y', b'p', b'e', 0, 0, 0, 0, // "type"
         7, 0, 0, 0, 0, 0, 0, 0, b's', b'y', b'm', b'l', b'i', b'n', b'k', 0, // "symlink"
         6, 0, 0, 0, 0, 0, 0, 0, b't', b'a', b'r', b'g', b'e', b't', 0, 0, // target
-        24, 0, 0, 0, 0, 0, 0, 0, b'/', b'n', b'i', b'x', b'/', b's', b't', b'o', b'r', b'e', b'/', b's', b'o',
-        b'm', b'e', b'w', b'h', b'e', b'r', b'e', b'e', b'l', b's',
+        24, 0, 0, 0, 0, 0, 0, 0, b'/', b'n', b'i', b'x', b'/', b's', b't', b'o', b'r', b'e', b'/',
+        b's', b'o', b'm', b'e', b'w', b'h', b'e', b'r', b'e', b'e', b'l', b's',
         b'e', // "/nix/store/somewhereelse"
-        1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0 // ")"
-    ];
+        1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0, // ")"
+    ]
+});
 
-    pub static ref CASTORE_NODE_HELLOWORLD: Node = Node::File {
-        digest: HELLOWORLD_BLOB_DIGEST.clone(),
-        size: HELLOWORLD_BLOB_CONTENTS.len() as u64,
-        executable: false,
-    };
+pub static CASTORE_NODE_HELLOWORLD: LazyLock<Node> = LazyLock::new(|| Node::File {
+    digest: HELLOWORLD_BLOB_DIGEST.clone(),
+    size: HELLOWORLD_BLOB_CONTENTS.len() as u64,
+    executable: false,
+});
 
-    /// The NAR representation of a regular file with the contents "Hello World!"
-    pub static ref NAR_CONTENTS_HELLOWORLD: Vec<u8> = vec![
-        13, 0, 0, 0, 0, 0, 0, 0, b'n', b'i', b'x', b'-', b'a', b'r', b'c', b'h', b'i', b'v', b'e', b'-', b'1', 0,
-        0, 0, // "nix-archive-1"
+/// The NAR representation of a regular file with the contents "Hello World!"
+pub static NAR_CONTENTS_HELLOWORLD: LazyLock<Vec<u8>> = LazyLock::new(|| {
+    vec![
+        13, 0, 0, 0, 0, 0, 0, 0, b'n', b'i', b'x', b'-', b'a', b'r', b'c', b'h', b'i', b'v', b'e',
+        b'-', b'1', 0, 0, 0, // "nix-archive-1"
         1, 0, 0, 0, 0, 0, 0, 0, b'(', 0, 0, 0, 0, 0, 0, 0, // "("
         4, 0, 0, 0, 0, 0, 0, 0, b't', b'y', b'p', b'e', 0, 0, 0, 0, // "type"
         7, 0, 0, 0, 0, 0, 0, 0, b'r', b'e', b'g', b'u', b'l', b'a', b'r', 0, // "regular"
         8, 0, 0, 0, 0, 0, 0, 0, b'c', b'o', b'n', b't', b'e', b'n', b't', b's', // "contents"
-        12, 0, 0, 0, 0, 0, 0, 0, b'H', b'e', b'l', b'l', b'o', b' ', b'W', b'o', b'r', b'l', b'd', b'!', 0, 0,
-        0, 0, // "Hello World!"
-        1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0 // ")"
-    ];
+        12, 0, 0, 0, 0, 0, 0, 0, b'H', b'e', b'l', b'l', b'o', b' ', b'W', b'o', b'r', b'l', b'd',
+        b'!', 0, 0, 0, 0, // "Hello World!"
+        1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0, // ")"
+    ]
+});
 
-    pub static ref CASTORE_NODE_TOO_BIG: Node = Node::File {
-        digest: HELLOWORLD_BLOB_DIGEST.clone(),
-        size: 42, // <- note the wrong size here!
-        executable: false,
-    };
-    pub static ref CASTORE_NODE_TOO_SMALL: Node = Node::File {
-        digest: HELLOWORLD_BLOB_DIGEST.clone(),
-        size: 2, // <- note the wrong size here!
-        executable: false,
-    };
+pub static CASTORE_NODE_TOO_BIG: LazyLock<Node> = LazyLock::new(|| Node::File {
+    digest: HELLOWORLD_BLOB_DIGEST.clone(),
+    size: 42, // <- note the wrong size here!
+    executable: false,
+});
+pub static CASTORE_NODE_TOO_SMALL: LazyLock<Node> = LazyLock::new(|| Node::File {
+    digest: HELLOWORLD_BLOB_DIGEST.clone(),
+    size: 2, // <- note the wrong size here!
+    executable: false,
+});
 
-    pub static ref CASTORE_NODE_COMPLICATED: Node = Node::Directory {
-        digest: DIRECTORY_COMPLICATED.digest(),
-        size: DIRECTORY_COMPLICATED.size(),
-    };
+pub static CASTORE_NODE_COMPLICATED: LazyLock<Node> = LazyLock::new(|| Node::Directory {
+    digest: DIRECTORY_COMPLICATED.digest(),
+    size: DIRECTORY_COMPLICATED.size(),
+});
 
-    /// The NAR representation of a more complicated directory structure.
-    pub static ref NAR_CONTENTS_COMPLICATED: Vec<u8> = vec![
-        13, 0, 0, 0, 0, 0, 0, 0, b'n', b'i', b'x', b'-', b'a', b'r', b'c', b'h', b'i', b'v', b'e', b'-', b'1', 0,
-        0, 0, // "nix-archive-1"
+/// The NAR representation of a more complicated directory structure.
+pub static NAR_CONTENTS_COMPLICATED: LazyLock<Vec<u8>> = LazyLock::new(|| {
+    vec![
+        13, 0, 0, 0, 0, 0, 0, 0, b'n', b'i', b'x', b'-', b'a', b'r', b'c', b'h', b'i', b'v', b'e',
+        b'-', b'1', 0, 0, 0, // "nix-archive-1"
         1, 0, 0, 0, 0, 0, 0, 0, b'(', 0, 0, 0, 0, 0, 0, 0, // "("
         4, 0, 0, 0, 0, 0, 0, 0, b't', b'y', b'p', b'e', 0, 0, 0, 0, // "type"
-        9, 0, 0, 0, 0, 0, 0, 0, b'd', b'i', b'r', b'e', b'c', b't', b'o', b'r', b'y', 0, 0, 0, 0, 0, 0, 0, // "directory"
+        9, 0, 0, 0, 0, 0, 0, 0, b'd', b'i', b'r', b'e', b'c', b't', b'o', b'r', b'y', 0, 0, 0, 0,
+        0, 0, 0, // "directory"
         5, 0, 0, 0, 0, 0, 0, 0, b'e', b'n', b't', b'r', b'y', 0, 0, 0, // "entry"
         1, 0, 0, 0, 0, 0, 0, 0, b'(', 0, 0, 0, 0, 0, 0, 0, // "("
         4, 0, 0, 0, 0, 0, 0, 0, b'n', b'a', b'm', b'e', 0, 0, 0, 0, // "name"
@@ -103,8 +108,8 @@ lazy_static! {
         4, 0, 0, 0, 0, 0, 0, 0, b't', b'y', b'p', b'e', 0, 0, 0, 0, // "type"
         7, 0, 0, 0, 0, 0, 0, 0, b's', b'y', b'm', b'l', b'i', b'n', b'k', 0, // "symlink"
         6, 0, 0, 0, 0, 0, 0, 0, b't', b'a', b'r', b'g', b'e', b't', 0, 0, // target
-        24, 0, 0, 0, 0, 0, 0, 0, b'/', b'n', b'i', b'x', b'/', b's', b't', b'o', b'r', b'e', b'/', b's', b'o',
-        b'm', b'e', b'w', b'h', b'e', b'r', b'e', b'e', b'l', b's',
+        24, 0, 0, 0, 0, 0, 0, 0, b'/', b'n', b'i', b'x', b'/', b's', b't', b'o', b'r', b'e', b'/',
+        b's', b'o', b'm', b'e', b'w', b'h', b'e', b'r', b'e', b'e', b'l', b's',
         b'e', // "/nix/store/somewhereelse"
         1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0, // ")"
         1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0, // ")"
@@ -115,7 +120,8 @@ lazy_static! {
         4, 0, 0, 0, 0, 0, 0, 0, b'n', b'o', b'd', b'e', 0, 0, 0, 0, // "node"
         1, 0, 0, 0, 0, 0, 0, 0, b'(', 0, 0, 0, 0, 0, 0, 0, // "("
         4, 0, 0, 0, 0, 0, 0, 0, b't', b'y', b'p', b'e', 0, 0, 0, 0, // "type"
-        9, 0, 0, 0, 0, 0, 0, 0, b'd', b'i', b'r', b'e', b'c', b't', b'o', b'r', b'y', 0, 0, 0, 0, 0, 0, 0, // "directory"
+        9, 0, 0, 0, 0, 0, 0, 0, b'd', b'i', b'r', b'e', b'c', b't', b'o', b'r', b'y', 0, 0, 0, 0,
+        0, 0, 0, // "directory"
         5, 0, 0, 0, 0, 0, 0, 0, b'e', b'n', b't', b'r', b'y', 0, 0, 0, // "entry"
         1, 0, 0, 0, 0, 0, 0, 0, b'(', 0, 0, 0, 0, 0, 0, 0, // "("
         4, 0, 0, 0, 0, 0, 0, 0, b'n', b'a', b'm', b'e', 0, 0, 0, 0, // "name"
@@ -131,23 +137,23 @@ lazy_static! {
         1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0, // ")"
         1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0, // ")"
         1, 0, 0, 0, 0, 0, 0, 0, b')', 0, 0, 0, 0, 0, 0, 0, // ")"
-    ];
+    ]
+});
 
-    /// A PathInfo message
-    pub static ref PATH_INFO: PathInfo = PathInfo {
-        store_path: DUMMY_PATH.clone(),
-        node: tvix_castore::Node::Directory {
-            digest: DUMMY_DIGEST.clone(),
-            size: 0,
-        },
-        references: vec![DUMMY_PATH.clone()],
-        nar_sha256: [0; 32],
-        nar_size: 0,
-        signatures: vec![],
-        deriver: None,
-        ca: Some(CAHash::Nar(NixHash::Sha256([0; 32]))),
-    };
-}
+/// A PathInfo message
+pub static PATH_INFO: LazyLock<PathInfo> = LazyLock::new(|| PathInfo {
+    store_path: DUMMY_PATH.clone(),
+    node: tvix_castore::Node::Directory {
+        digest: DUMMY_DIGEST.clone(),
+        size: 0,
+    },
+    references: vec![DUMMY_PATH.clone()],
+    nar_sha256: [0; 32],
+    nar_size: 0,
+    signatures: vec![],
+    deriver: None,
+    ca: Some(CAHash::Nar(NixHash::Sha256([0; 32]))),
+});
 
 #[fixture]
 pub(crate) fn blob_service() -> Arc<dyn BlobService> {