diff --git a/__init__.py b/__init__.py
index 7b1eebe..3abff74 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,23 +2,63 @@
 C64 Emulator Package
 """
 
-__version__ = "0.1.0"
+from __future__ import annotations
 
-from .emulator import C64
-from .cpu import CPU6502
-from .memory import MemoryMap
-from .cpu_state import CPUState, CIATimer
-from .debug import UdpDebugLogger
-from .ui import TextualInterface
-from .server import EmulatorServer
+from typing import TYPE_CHECKING, Any
+
+__version__ = "1.0.1"
 
 __all__ = [
-    'C64',
-    'CPU6502',
-    'MemoryMap',
-    'CPUState',
-    'CIATimer',
-    'UdpDebugLogger',
-    'TextualInterface',
-    'EmulatorServer',
+    "C64",
+    "CPU6502",
+    "MemoryMap",
+    "CPUState",
+    "CIATimer",
+    "UdpDebugLogger",
+    "TextualInterface",
+    "EmulatorServer",
 ]
+
+if TYPE_CHECKING:
+    from .cpu import CPU6502
+    from .cpu_state import CPUState, CIATimer
+    from .debug import UdpDebugLogger
+    from .emulator import C64
+    from .server import EmulatorServer
+    from .ui import TextualInterface
+
+
+def __getattr__(name: str) -> Any:
+    if name == "C64":
+        from .emulator import C64
+
+        return C64
+    if name == "CPU6502":
+        from .cpu import CPU6502
+
+        return CPU6502
+    if name == "MemoryMap":
+        from .memory import MemoryMap
+
+        return MemoryMap
+    if name == "CPUState":
+        from .cpu_state import CPUState
+
+        return CPUState
+    if name == "CIATimer":
+        from .cpu_state import CIATimer
+
+        return CIATimer
+    if name == "UdpDebugLogger":
+        from .debug import UdpDebugLogger
+
+        return UdpDebugLogger
+    if name == "TextualInterface":
+        from .ui import TextualInterface
+
+        return TextualInterface
+    if name == "EmulatorServer":
+        from .server import EmulatorServer
+
+        return EmulatorServer
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
diff --git a/emulator.py b/emulator.py
index 2718ddf..c4ebbac 100644
--- a/emulator.py
+++ b/emulator.py
@@ -48,7 +48,6 @@
 from .debug import UdpDebugLogger
 from .memory import MemoryMap
 from .roms import REQUIRED_ROMS
-from .ui import TextualInterface
 from .iec_bus import IECBus
 from .drives.tcp_drive_client import TcpDriveClient
 from .drives.iec_backend import IECDriveBackend
@@ -121,6 +120,8 @@ def __init__(
         rust_hybrid_vic = vic_emulation == "accurate-rust"
         self.memory = MemoryMap()
         if interface_factory is None:
+            from .ui import TextualInterface
+
             self.interface = TextualInterface(self)
         else:
             self.interface = interface_factory(self)
diff --git a/pyproject.toml b/pyproject.toml
index f09fbd3..6e1fac5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "c64py"
-version = "0.1.0"
+version = "1.0.1"
 description = "A Commodore 64 emulator implemented in Python with a text-based interface."
 readme = "README.md"
 requires-python = ">=3.9"
@@ -18,7 +18,7 @@ dependencies = [
   "tomli>=2.0.0; python_version<\"3.11\"",
 ]
 classifiers = [
-  "Development Status :: 3 - Alpha",
+  "Development Status :: 5 - Production/Stable",
   "Intended Audience :: Developers",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
@@ -29,7 +29,7 @@ classifiers = [
 ]
 
 [project.urls]
-Homepage = "https://github.com/luar/c64py"
+Homepage = "https://github.com/cyberplant/c64py"
 
 [project.scripts]
 c64py = "c64py.C64:main"
diff --git a/rust/c64py-core/Cargo.lock b/rust/c64py-core/Cargo.lock
index 5fe7c54..f0148c2 100644
--- a/rust/c64py-core/Cargo.lock
+++ b/rust/c64py-core/Cargo.lock
@@ -4,7 +4,7 @@ version = 4
 
 [[package]]
 name = "c64py_rust_core"
-version = "0.1.0"
+version = "1.0.1"
 dependencies = [
  "lazy_static",
  "libloading",
@@ -32,9 +32,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.184"
+version = "0.2.186"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48f5d2a454e16a5ea0f4ced81bd44e4cfc7bd3a507b61887c99fd3538b28e4af"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
 
 [[package]]
 name = "libloading"
diff --git a/rust/c64py-core/Cargo.toml b/rust/c64py-core/Cargo.toml
index 230a778..fffc874 100644
--- a/rust/c64py-core/Cargo.toml
+++ b/rust/c64py-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "c64py_rust_core"
-version = "0.1.0"
+version = "1.0.1"
 edition = "2021"
 rust-version = "1.83"
 description = "Optional native fast-path core for c64py (PyO3 extension)"
diff --git a/test/test_headless_imports.py b/test/test_headless_imports.py
new file mode 100644
index 0000000..f13debf
--- /dev/null
+++ b/test/test_headless_imports.py
@@ -0,0 +1,27 @@
+"""Headless import guards (PyPy Docker smoke test has no textual/pygame)."""
+
+from __future__ import annotations
+
+import builtins
+import importlib
+
+
+def _block_textual_import(name, *args, **kwargs):
+    if name == "textual" or name.startswith("textual."):
+        raise AssertionError(f"unexpected textual import: {name!r}")
+    return _REAL_IMPORT(name, *args, **kwargs)
+
+
+_REAL_IMPORT = builtins.__import__
+
+
+def test_c64py_config_import_without_textual(monkeypatch) -> None:
+    monkeypatch.setattr(builtins, "__import__", _block_textual_import)
+    importlib.import_module("c64py.config")
+
+
+def test_emulator_headless_factory_without_textual(monkeypatch) -> None:
+    monkeypatch.setattr(builtins, "__import__", _block_textual_import)
+    from c64py.emulator import C64
+
+    C64(interface_factory=lambda _emu: None, vic_emulation="fast")