diff --git a/Cargo.lock b/Cargo.lock
index 990216c53..ec6c3ab3f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -665,6 +665,7 @@ dependencies = [
  "futures",
  "ipnetwork",
  "once_cell",
+ "serde",
  "tokio",
  "tracing",
 ]
@@ -1094,6 +1095,7 @@ name = "event-publisher"
 version = "0.1.0"
 dependencies = [
  "events-api",
+ "serde",
  "serde_json",
  "tokio",
  "tracing",
diff --git a/Jenkinsfile b/Jenkinsfile
index acb0b6098..2a210044a 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -138,9 +138,10 @@ pipeline {
       steps {
         cleanWs()
         unstash 'source'
-        sh 'nix-shell --run "./scripts/rust-style.sh" ci.nix'
+        sh 'nix-shell --run "FMT_OPTS=--check ./scripts/rust-style.sh" ci.nix'
         sh 'nix-shell --run "./scripts/rust-linter.sh" ci.nix'
         sh 'nix-shell --run "./scripts/js-check.sh" ci.nix'
+        sh 'nix-shell --run "nixpkgs-fmt --check ." ci.nix'
         script {
           if (env.BRANCH_NAME != "trying") {
             sh 'nix-shell --run "./scripts/check-submodule-branches.sh" ci.nix'
diff --git a/ci.nix b/ci.nix
index 3fa791f12..1864835b6 100644
--- a/ci.nix
+++ b/ci.nix
@@ -37,7 +37,10 @@ let
         numactl
         pytest_inputs
         udev
+        libnvme
+        nvme-cli
         xfsprogs
+        nixpkgs-fmt
       ];
 
       shellEnv = with pkgs; {
@@ -67,6 +70,6 @@ let
     };
   };
 in
-  pkgs.mkShell shellAttrs // {
-    name = "io-engine-dev-shell";
-  }
+pkgs.mkShell shellAttrs // {
+  name = "io-engine-dev-shell";
+}
diff --git a/ide.nix b/ide.nix
index 18b89c00c..13e0e1555 100644
--- a/ide.nix
+++ b/ide.nix
@@ -2,8 +2,8 @@
 , spdk ? "develop"
 , spdk-path ? null
 } @ args:
-  import ./ci.nix {
-    inherit rust;
-    inherit spdk;
-    inherit spdk-path;
-  }
+import ./ci.nix {
+  inherit rust;
+  inherit spdk;
+  inherit spdk-path;
+}
diff --git a/io-engine/src/bdev/nvmx/qpair.rs b/io-engine/src/bdev/nvmx/qpair.rs
index 9684c2ce7..85838a770 100644
--- a/io-engine/src/bdev/nvmx/qpair.rs
+++ b/io-engine/src/bdev/nvmx/qpair.rs
@@ -22,9 +22,9 @@ use spdk_rs::libspdk::{
     spdk_nvme_qpair_set_abort_dnr,
 };
 
+use std::mem::zeroed;
 #[cfg(feature = "spdk-async-qpair-connect")]
 use std::{os::raw::c_void, time::Duration};
-use std::mem::zeroed;
 
 #[cfg(feature = "spdk-async-qpair-connect")]
 use spdk_rs::{
diff --git a/io-engine/src/core/env.rs b/io-engine/src/core/env.rs
index 154d8f0bf..54cbd19be 100644
--- a/io-engine/src/core/env.rs
+++ b/io-engine/src/core/env.rs
@@ -27,6 +27,7 @@ use spdk_rs::{
     libspdk::{
         spdk_app_shutdown_cb,
         spdk_env_dpdk_post_init,
+        spdk_env_dpdk_rte_eal_init,
         spdk_env_fini,
         spdk_log_close,
         spdk_log_level,
@@ -43,7 +44,6 @@ use spdk_rs::{
         spdk_thread_lib_fini,
         spdk_thread_send_critical_msg,
         spdk_trace_cleanup,
-        spdk_env_dpdk_rte_eal_init,
         SPDK_LOG_DEBUG,
         SPDK_LOG_INFO,
         SPDK_RPC_RUNTIME,
diff --git a/nix/overlay.nix b/nix/overlay.nix
index 2b08b995d..6d5a75df7 100644
--- a/nix/overlay.nix
+++ b/nix/overlay.nix
@@ -14,4 +14,4 @@ self: super: rec {
   nvmet-cli = super.callPackage ./pkgs/nvmet-cli { };
   units = (super.callPackage ./pkgs/io-engine/units.nix { inherit tag sourcer; });
 }
-// (import ../spdk-rs/nix/overlay.nix { } self super)
+  // (import ../spdk-rs/nix/overlay.nix { } self super)
diff --git a/nix/pkgs/io-engine/cargo-package.nix b/nix/pkgs/io-engine/cargo-package.nix
index 47282fa32..978fcef37 100644
--- a/nix/pkgs/io-engine/cargo-package.nix
+++ b/nix/pkgs/io-engine/cargo-package.nix
@@ -27,6 +27,7 @@
 , targetPlatform
 , versions
 , systemdMinimal
+, rdma-core
 , cargoBuildFlags ? [ ]
 }:
 let
@@ -87,6 +88,7 @@ let
       protobuf
       systemdMinimal.dev
       utillinux.dev
+      rdma-core
     ];
     cargoLock = {
       lockFile = ../../../Cargo.lock;
diff --git a/nix/pkgs/io-engine/default.nix b/nix/pkgs/io-engine/default.nix
index 90bd6a585..cc03153a1 100644
--- a/nix/pkgs/io-engine/default.nix
+++ b/nix/pkgs/io-engine/default.nix
@@ -1,27 +1,5 @@
 { stdenv
-, clang
-, dockerTools
-, e2fsprogs
 , lib
-, libaio
-, libbsd
-, libspdk
-, libspdk-dev
-, libpcap
-, udev
-, liburing
-, makeRustPlatform
-, numactl
-, openssl
-, pkg-config
-, protobuf
-, sources
-, xfsprogs
-, utillinux
-, llvmPackages
-, targetPackages
-, buildPackages
-, targetPlatform
 , pkgs
 , git
 , tag
diff --git a/nix/sources.nix b/nix/sources.nix
index 28a48153a..b6443cad3 100644
--- a/nix/sources.nix
+++ b/nix/sources.nix
@@ -1,3 +1,2 @@
-
 # Redirects to `spdk-rs`.
 import ../spdk-rs/nix/sources.nix
diff --git a/scripts/rust-linter-env.sh b/scripts/rust-linter-env.sh
deleted file mode 100644
index 39ce7dbc7..000000000
--- a/scripts/rust-linter-env.sh
+++ /dev/null
@@ -1,134 +0,0 @@
-#!/usr/bin/env bash
-
-MSG_PREFIX="rust linter env"
-VERBOSE=0
-
-err_exit() {
-  echo "$MSG_PREFIX error: $1"
-  exit 1
-}
-
-info() {
-  if [[ $VERBOSE == "1" ]]; then
-    echo "$MSG_PREFIX info: $1"
-  fi
-}
-
-make_regex() {
-  local res=$1
-  local res=$(echo "$res" | sed "s/\\./\\\\./g")
-  local res=$(echo "$res" | sed "s/(/\\\\(/g")
-  local res=$(echo "$res" | sed "s/)/\\\\)/g")
-  local res=$(echo "$res" | sed "s/\\*/.*/g")
-  echo "$res"
-}
-
-echo "configuring Rust linter environment..."
-
-# Parse arguments
-while [ "$#" -gt 0 ]; do
-  case $1 in
-  -v|--verbose)
-    VERBOSE=1
-    shift
-  ;;
-  *)
-    err_exit "unknown option: $1"
-  ;;
-  esac
-done
-
-if [[ $(uname) != "Linux" ]]; then
-  err_exit "must be run on Linux with Mayastor prerequisities installed"
-fi
-
-# Rust nightly toolchain "2021-11-30" installs cargo version "2021-11-24" and
-# rustfmt and clippy "2021-11-29".
-# When upgrading Rust toolchain version, check 'cargo --version',
-# 'cargo fmt --version', 'cargo clippy --version' and put them here.
-RUST_TOOLCHAIN_VER="2023-08-25"
-WANTED_CARGO_VER="cargo 1.74.0-nightly (* 2023-08-22)"
-WANTED_RUSTFMT_VER="rustfmt 1.6.0-nightly (* 2023-08-24)"
-WANTED_CLIPPY_VER="clippy 0.1.73 (* 2023-08-24)"
-CARGO="cargo"
-CARGO_MODE="system"
-
-CARGO_VER_RE=$(make_regex "$WANTED_CARGO_VER")
-RUSTFMT_VER_RE=$(make_regex "$WANTED_RUSTFMT_VER")
-CLIPPY_VER_RE=$(make_regex "$WANTED_CLIPPY_VER")
-
-# If RUST_NIGHTLY_PATH is defined, use it.
-if [ -n "$RUST_NIGHTLY_PATH" ]; then
-  info "RUST_NIGHTLY_PATH is set: $RUST_NIGHTLY_PATH"
-  CARGO="$RUST_NIGHTLY_PATH/bin/cargo"
-  CARGO_MODE="explicit nightly"
-
-  # cargo searches PATH for its subcommands (e.g. cargo fmt), so export
-  # PATH with RUST_NIGHTLY_PATH put before all other PATHs.
-  PATH=$RUST_NIGHTLY_PATH/bin:$PATH
-fi
-
-# Try cargo from PATH.
-info "using $CARGO_MODE cargo command: '$CARGO'"
-CARGO_VER=$($CARGO --version 2>/dev/null)
-
-if [[ $? != 0 ]]; then
-  err_exit "'cargo' not found"
-fi
-
-info "found 'cargo' version: $CARGO_VER"
-
-if ! [[ "$CARGO_VER" =~ $CARGO_VER_RE ]]; then
-  info "required $WANTED_CARGO_VER, trying rustup +nightly..."
-
-  # Try +nightly option of cargo installed via rustup.
-  # Give up, if it fails.
-  CARGO="cargo +nightly-$RUST_TOOLCHAIN_VER"
-  CARGO_MODE="rustup nightly"
-  CARGO_VER=$($CARGO --version 2>/dev/null)
-  if [[ $? != 0 ]]; then
-    err_exit "'$CARGO' not found"
-  fi
-
-  info "using $CARGO_MODE: $CARGO"
-
-  if ! [[ "$CARGO_VER" =~ $CARGO_VER_RE ]]; then
-    err_exit "required $WANTED_CARGO_VER"
-  fi
-fi
-
-#
-# Check fmt version.
-#
-RUSTFMT_VER=$($CARGO fmt --version 2>/dev/null)
-if [[ $? != 0 ]]; then
-  err_exit "'cargo fmt' not found"
-fi
-
-info "found 'cargo fmt' version: $RUSTFMT_VER"
-
-if ! [[ "$RUSTFMT_VER" =~ $RUSTFMT_VER_RE ]]; then
-  err_exit "required $WANTED_RUSTFMT_VER"
-fi
-
-#
-# Check clippy version.
-#
-CLIPPY_VER=$($CARGO clippy --version 2>/dev/null)
-
-if [[ $? != 0 ]]; then
-  err_exit "'cargo clippy' not found"
-fi
-
-info "found 'cargo clippy' version: $CLIPPY_VER"
-
-if ! [[ "$CLIPPY_VER" =~ $CLIPPY_VER_RE ]]; then
-  err_exit "required $WANTED_CLIPPY_VER"
-fi
-
-echo "  using cargo          : $CARGO_MODE"
-echo "  cargo command        : $CARGO"
-echo "  cargo version        : $CARGO_VER"
-echo "  cargo fmt version    : $RUSTFMT_VER"
-echo "  cargo clippy version : $CLIPPY_VER"
-echo "configuration of Rust linter environment done"
diff --git a/scripts/rust-linter.sh b/scripts/rust-linter.sh
index bf90b8582..b93f60ab3 100755
--- a/scripts/rust-linter.sh
+++ b/scripts/rust-linter.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-source ${BASH_SOURCE%/*}/rust-linter-env.sh
+source ${BASH_SOURCE%/*}/../spdk-rs/scripts/rust-linter-env.sh
 $CARGO clippy --all --all-targets --features=io-engine-testing -- -D warnings \
     -A clippy::await-holding-lock \
     -A clippy::await-holding-refcell-ref \
diff --git a/scripts/rust-style.sh b/scripts/rust-style.sh
index 312c48333..00620ad10 100755
--- a/scripts/rust-style.sh
+++ b/scripts/rust-style.sh
@@ -2,5 +2,5 @@
 
 FMT_OPTS=${FMT_OPTS:-""}
 
-source ${BASH_SOURCE%/*}/rust-linter-env.sh
+source ${BASH_SOURCE%/*}/../spdk-rs/scripts/rust-linter-env.sh
 $CARGO fmt --all -- $FMT_OPTS
diff --git a/shell.nix b/shell.nix
index 7088c8aa2..612b4fcb3 100644
--- a/shell.nix
+++ b/shell.nix
@@ -2,8 +2,8 @@
 , spdk ? "develop"
 , spdk-path ? null
 } @ args:
-  import ./ci.nix {
-    inherit rust;
-    inherit spdk;
-    inherit spdk-path;
-  }
+import ./ci.nix {
+  inherit rust;
+  inherit spdk;
+  inherit spdk-path;
+}
diff --git a/spdk-rs b/spdk-rs
index ea6ef4ef3..1e0f4afa6 160000
--- a/spdk-rs
+++ b/spdk-rs
@@ -1 +1 @@
-Subproject commit ea6ef4ef351429fd76cbaec20d0735dcfa2588e3
+Subproject commit 1e0f4afa6d5fc97317c53914017c1462b23a3e5a
diff --git a/utils/dependencies b/utils/dependencies
index eb9d43a61..4cee46e2c 160000
--- a/utils/dependencies
+++ b/utils/dependencies
@@ -1 +1 @@
-Subproject commit eb9d43a612604750de9679179d33058f2daf780b
+Subproject commit 4cee46e2cc2e1b9a7016eef565c030731011dd32