diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py
index da444403bff1..abb136321a3f 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py
@@ -27,6 +27,7 @@ def get_parser() -> tuple[argparse.ArgumentParser, dict[str, argparse.ArgumentPa
         default=0,
         help="Enable verbose logging (includes nix)",
     )
+    common_flags.add_argument("--quiet", action="count", default=0)
     common_flags.add_argument("--max-jobs", "-j")
     common_flags.add_argument("--cores")
     common_flags.add_argument("--log-format")
@@ -34,12 +35,11 @@ def get_parser() -> tuple[argparse.ArgumentParser, dict[str, argparse.ArgumentPa
     common_flags.add_argument("--keep-failed", "-K", action="store_true")
     common_flags.add_argument("--fallback", action="store_true")
     common_flags.add_argument("--repair", action="store_true")
-    common_flags.add_argument("--option", nargs=2)
+    common_flags.add_argument("--option", nargs=2, action="append")
 
     common_build_flags = argparse.ArgumentParser(add_help=False)
     common_build_flags.add_argument("--builders")
     common_build_flags.add_argument("--include", "-I", action="append")
-    common_build_flags.add_argument("--quiet", action="store_true")
     common_build_flags.add_argument("--print-build-logs", "-L", action="store_true")
     common_build_flags.add_argument("--show-trace", action="store_true")
 
@@ -54,8 +54,8 @@ def get_parser() -> tuple[argparse.ArgumentParser, dict[str, argparse.ArgumentPa
     flake_common_flags.add_argument("--no-write-lock-file", action="store_true")
     flake_common_flags.add_argument("--no-registries", action="store_true")
     flake_common_flags.add_argument("--commit-lock-file", action="store_true")
-    flake_common_flags.add_argument("--update-input")
-    flake_common_flags.add_argument("--override-input", nargs=2)
+    flake_common_flags.add_argument("--update-input", action="append")
+    flake_common_flags.add_argument("--override-input", nargs=2, action="append")
 
     classic_build_flags = argparse.ArgumentParser(add_help=False)
     classic_build_flags.add_argument("--no-build-output", "-Q", action="store_true")
diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/models.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/models.py
index 267ac3357450..c79052f3752f 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/models.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/models.py
@@ -52,7 +52,7 @@ class BuildAttr:
     attr: str | None
 
     def to_attr(self, *attrs: str) -> str:
-        return f"{self.attr + '.' if self.attr else ''}{".".join(attrs)}"
+        return f"{self.attr + '.' if self.attr else ''}{'.'.join(attrs)}"
 
     @classmethod
     def from_arg(cls, attr: str | None, file: str | None) -> Self:
@@ -68,7 +68,7 @@ class Flake:
     _re: ClassVar = re.compile(r"^(?P<path>[^\#]*)\#?(?P<attr>[^\#\"]*)$")
 
     def to_attr(self, *attrs: str) -> str:
-        return f"{self}.{".".join(attrs)}"
+        return f"{self}.{'.'.join(attrs)}"
 
     @override
     def __str__(self) -> str:
@@ -83,7 +83,7 @@ class Flake:
         m = cls._re.match(flake_str)
         assert m is not None, f"got no matches for {flake_str}"
         attr = m.group("attr")
-        nixos_attr = f"nixosConfigurations.{attr or hostname_fn() or "default"}"
+        nixos_attr = f"nixosConfigurations.{attr or hostname_fn() or 'default'}"
         path = m.group("path")
         if ":" in path:
             return cls(path, nixos_attr)
diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/process.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/process.py
index 54c8b71036e9..8905ab274508 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/process.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/process.py
@@ -15,7 +15,7 @@ SSH_DEFAULT_OPTS: Final = [
     "-o",
     "ControlMaster=auto",
     "-o",
-    f"ControlPath={tmpdir.TMPDIR_PATH / "ssh-%n"}",
+    f"ControlPath={tmpdir.TMPDIR_PATH / 'ssh-%n'}",
     "-o",
     "ControlPersist=60",
 ]
diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py
index 6fbf53a8c00b..5a53d2d7ef37 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/utils.py
@@ -2,7 +2,7 @@ import logging
 from collections.abc import Mapping, Sequence
 from typing import Any, assert_never, override
 
-type Arg = bool | str | list[str] | int | None
+type Arg = bool | str | list[str] | list[list[str]] | int | None
 type Args = dict[str, Arg]
 
 
@@ -43,9 +43,13 @@ def dict_to_flags(d: Args | None) -> list[str]:
                 flags.append(flag)
                 flags.append(value)
             case list():
-                for v in value:
+                for vs in value:
                     flags.append(flag)
-                    flags.append(v)
+                    if isinstance(vs, list):
+                        for v in vs:
+                            flags.append(v)
+                    else:
+                        flags.append(vs)
             case _:
                 assert_never(value)
     return flags
diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_main.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_main.py
index 858916b682c9..ba67fa838578 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_main.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_main.py
@@ -40,8 +40,21 @@ def test_parse_args() -> None:
             "--flake",
             "/etc/nixos",
             "--option",
-            "foo",
-            "bar",
+            "foo1",
+            "bar1",
+            "--option",
+            "foo2",
+            "bar2",
+            "--override-input",
+            "override1",
+            "input1",
+            "--override-input",
+            "override2",
+            "input2",
+            "--update-input",
+            "input1",
+            "--update-input",
+            "input2",
         ]
     )
     assert nr.logger.level == logging.INFO
@@ -50,8 +63,27 @@ def test_parse_args() -> None:
     assert r1.install_grub is True
     assert r1.profile_name == "system"
     assert r1.action == "switch"
-    assert r1.option == ["foo", "bar"]
-    assert g1["common_flags"].option == ["foo", "bar"]
+    # round-trip test (ensure that we have the same flags as parsed)
+    assert nr.utils.dict_to_flags(vars(g1["common_flags"])) == [
+        "--option",
+        "foo1",
+        "bar1",
+        "--option",
+        "foo2",
+        "bar2",
+    ]
+    assert nr.utils.dict_to_flags(vars(g1["flake_common_flags"])) == [
+        "--update-input",
+        "input1",
+        "--update-input",
+        "input2",
+        "--override-input",
+        "override1",
+        "input1",
+        "--override-input",
+        "override2",
+        "input2",
+    ]
 
     r2, g2 = nr.parse_args(
         [
@@ -63,7 +95,13 @@ def test_parse_args() -> None:
             "foo",
             "--attr",
             "bar",
+            "-I",
+            "include1",
+            "-I",
+            "include2",
             "-vvv",
+            "--quiet",
+            "--quiet",
         ]
     )
     assert nr.logger.level == logging.DEBUG
@@ -72,7 +110,18 @@ def test_parse_args() -> None:
     assert r2.action == "dry-build"
     assert r2.file == "foo"
     assert r2.attr == "bar"
-    assert g2["common_flags"].v == 3
+    # round-trip test (ensure that we have the same flags as parsed)
+    assert nr.utils.dict_to_flags(vars(g2["common_flags"])) == [
+        "-vvv",
+        "--quiet",
+        "--quiet",
+    ]
+    assert nr.utils.dict_to_flags(vars(g2["common_build_flags"])) == [
+        "--include",
+        "include1",
+        "--include",
+        "include2",
+    ]
 
 
 @patch.dict(nr.process.os.environ, {}, clear=True)
@@ -292,6 +341,10 @@ def test_execute_nix_switch_flake(mock_run: Any, tmp_path: Path) -> None:
             "--sudo",
             "--verbose",
             "--fast",
+            # https://github.com/NixOS/nixpkgs/issues/374050
+            "--option",
+            "narinfo-cache-negative-ttl",
+            "1200",
         ]
     )
 
@@ -307,6 +360,9 @@ def test_execute_nix_switch_flake(mock_run: Any, tmp_path: Path) -> None:
                     "--print-out-paths",
                     "/path/to/config#nixosConfigurations.hostname.config.system.build.toplevel",
                     "-v",
+                    "--option",
+                    "narinfo-cache-negative-ttl",
+                    "1200",
                     "--no-link",
                 ],
                 check=True,
diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_utils.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_utils.py
index cfa224478053..e06c6c73c38c 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_utils.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/tests/test_utils.py
@@ -11,10 +11,11 @@ def test_dict_to_flags() -> None:
             "test_flag_2": False,
             "test_flag_3": "value",
             "test_flag_4": ["v1", "v2"],
-            "test_flag_5": None,
+            "test_flag_5": [["o1", "v1"], ["o2", "v2"]],
+            "test_flag_6": None,
             "t": True,
             "v": 5,
-            "verbose": 2,
+            "quiet": 2,
         }
     )
     assert r1 == [
@@ -25,10 +26,16 @@ def test_dict_to_flags() -> None:
         "v1",
         "--test-flag-4",
         "v2",
+        "--test-flag-5",
+        "o1",
+        "v1",
+        "--test-flag-5",
+        "o2",
+        "v2",
         "-t",
         "-vvvvv",
-        "--verbose",
-        "--verbose",
+        "--quiet",
+        "--quiet",
     ]
     r2 = u.dict_to_flags({"verbose": 0, "empty_list": []})
     assert r2 == []