diff --git a/package/linux-devshell/default.nix b/package/linux-devshell/default.nix
index 37f6d31..53185ca 100644
--- a/package/linux-devshell/default.nix
+++ b/package/linux-devshell/default.nix
@@ -30,7 +30,7 @@ let
     name = "linux-devshell";
     executable = true;
     text = ''
-      #!${shell}
+      #!/bin/sh
       ${lib.concatMapStringsSep "\n" (option: "set -o ${option}") bashOptions}
 
       ${logHelpers}
diff --git a/test/package/linux-devshell/run-test.sh b/test/package/linux-devshell/run-test.sh
new file mode 100755
index 0000000..7c3893e
--- /dev/null
+++ b/test/package/linux-devshell/run-test.sh
@@ -0,0 +1,47 @@
+#!/bin/dash
+set -eu
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
+
+echo "Building standalone script..."
+nix build "${REPO_ROOT}#linux-devshell-standalone" --no-link
+STANDALONE_SCRIPT="$(nix build "${REPO_ROOT}#linux-devshell-standalone" --print-out-paths)"
+
+echo "Standalone script built at: ${STANDALONE_SCRIPT}"
+
+echo "Creating test repo..."
+TEST_REPO="$(mktemp -d)"
+trap 'rm -rf "$TEST_REPO"' EXIT
+
+mkdir -p "${TEST_REPO}/script"
+cp "$STANDALONE_SCRIPT" "${TEST_REPO}/script/linux-devshell"
+chmod +x "${TEST_REPO}/script/linux-devshell"
+
+cat > "${TEST_REPO}/flake.nix" <<'FLAKE'
+{
+  description = "Test flake for linux-devshell";
+
+  outputs = { self, nixpkgs }: {
+    devShells.default = nixpkgs.legacyPackages.x86_64-linux.mkShell {
+      shellHook = ''
+        echo "=== Inside dev shell ==="
+        echo "This is a test dev shell"
+        exit 0
+      '';
+    };
+  };
+}
+FLAKE
+
+echo "Test repo created at: ${TEST_REPO}"
+echo ""
+echo "Running linux-devshell in Arch Linux container..."
+
+docker run --rm -it \
+  -v "${TEST_REPO}:/test-repo:ro" \
+  -w /test-repo \
+  archlinux:latest \
+  /test-repo/script/linux-devshell || {
+    echo "Test completed (exit code: $?)"
+  }