Full mypy compliance and small fixes (#1777)

* Fix mypy compliance

---------

Co-authored-by: Daniel Girtler <girtler.daniel@gmail.com>

18 files changed, 450 insertions, 412 deletions

diff --git a/archinstall/__init__.py b/archinstall/__init__.py
index 3d0768a5..29b70b7a 100644
--- a/archinstall/__init__.py
+++ b/archinstall/__init__.py
@@ -233,7 +233,8 @@ def post_process_arguments(arguments):
 		log(f"Warning: --debug mode will write certain credentials to {storage['LOG_PATH']}/{storage['LOG_FILE']}!", fg="red", level=logging.WARNING)
 
 	if arguments.get('plugin', None):
-		load_plugin(arguments['plugin'])
+		path = arguments['plugin']
+		load_plugin(path)
 
 	load_config()
 
diff --git a/archinstall/lib/disk/device_handler.py b/archinstall/lib/disk/device_handler.py
index ba325cda..8f92cf3b 100644
--- a/archinstall/lib/disk/device_handler.py
+++ b/archinstall/lib/disk/device_handler.py
@@ -269,13 +269,13 @@ class DeviceHandler(object):
 			# partition will be encrypted
 			if enc_conf is not None and part_mod in enc_conf.partitions:
 				self._perform_enc_formatting(
-					part_mod.real_dev_path,
+					part_mod.safe_dev_path,
 					part_mod.mapper_name,
 					part_mod.fs_type,
 					enc_conf
 				)
 			else:
-				self._perform_formatting(part_mod.fs_type, part_mod.real_dev_path)
+				self._perform_formatting(part_mod.fs_type, part_mod.safe_dev_path)
 
 	def _perform_partitioning(
 		self,
@@ -287,11 +287,11 @@ class DeviceHandler(object):
 		# when we require a delete and the partition to be (re)created
 		# already exists then we have to delete it first
 		if requires_delete and part_mod.status in [ModificationStatus.Modify, ModificationStatus.Delete]:
-			log(f'Delete existing partition: {part_mod.real_dev_path}', level=logging.INFO)
-			part_info = self.find_partition(part_mod.real_dev_path)
+			log(f'Delete existing partition: {part_mod.safe_dev_path}', level=logging.INFO)
+			part_info = self.find_partition(part_mod.safe_dev_path)
 
 			if not part_info:
-				raise DiskError(f'No partition for dev path found: {part_mod.real_dev_path}')
+				raise DiskError(f'No partition for dev path found: {part_mod.safe_dev_path}')
 
 			disk.deletePartition(part_info.partition)
 			disk.commit()
@@ -375,7 +375,7 @@ class DeviceHandler(object):
 		part_mod: PartitionModification,
 		enc_conf: Optional['DiskEncryption'] = None
 	):
-		log(f'Creating subvolumes: {part_mod.real_dev_path}', level=logging.INFO)
+		log(f'Creating subvolumes: {part_mod.safe_dev_path}', level=logging.INFO)
 
 		luks_handler = None
 
@@ -385,7 +385,7 @@ class DeviceHandler(object):
 				raise ValueError('No device path specified for modification')
 
 			luks_handler = self.unlock_luks2_dev(
-				part_mod.real_dev_path,
+				part_mod.safe_dev_path,
 				part_mod.mapper_name,
 				enc_conf.encryption_password
 			)
@@ -395,7 +395,7 @@ class DeviceHandler(object):
 
 			self.mount(luks_handler.mapper_dev, self._TMP_BTRFS_MOUNT, create_target_mountpoint=True)
 		else:
-			self.mount(part_mod.real_dev_path, self._TMP_BTRFS_MOUNT, create_target_mountpoint=True)
+			self.mount(part_mod.safe_dev_path, self._TMP_BTRFS_MOUNT, create_target_mountpoint=True)
 
 		for sub_vol in part_mod.btrfs_subvols:
 			log(f'Creating subvolume: {sub_vol.name}', level=logging.DEBUG)
@@ -419,7 +419,7 @@ class DeviceHandler(object):
 			self.umount(luks_handler.mapper_dev)
 			luks_handler.lock()
 		else:
-			self.umount(part_mod.real_dev_path)
+			self.umount(part_mod.safe_dev_path)
 
 	def unlock_luks2_dev(self, dev_path: Path, mapper_name: str, enc_password: str) -> Luks2:
 		luks_handler = Luks2(dev_path, mapper_name=mapper_name, password=enc_password)
diff --git a/archinstall/lib/disk/device_model.py b/archinstall/lib/disk/device_model.py
index 0270a4dd..987a1e8a 100644
--- a/archinstall/lib/disk/device_model.py
+++ b/archinstall/lib/disk/device_model.py
@@ -603,7 +603,7 @@ class PartitionModification:
 		return ''
 
 	@property
-	def real_dev_path(self) -> Path:
+	def safe_dev_path(self) -> Path:
 		if self.dev_path is None:
 			raise ValueError('Device path was not set')
 		return self.dev_path
diff --git a/archinstall/lib/disk/fido.py b/archinstall/lib/disk/fido.py
index 436be4d4..2a53b551 100644
--- a/archinstall/lib/disk/fido.py
+++ b/archinstall/lib/disk/fido.py
@@ -2,7 +2,8 @@ from __future__ import annotations
 
 import getpass
 import logging
-from typing import List
+from pathlib import Path
+from typing import List, Optional
 
 from .device_model import PartitionModification, Fido2Device
 from ..general import SysCommand, SysCommandWorker, clear_vt100_escape_codes
@@ -36,12 +37,12 @@ class Fido2:
 		# to prevent continous reloading which will slow
 		# down moving the cursor in the menu
 		if not cls._loaded or reload:
-			ret = SysCommand(f"systemd-cryptenroll --fido2-device=list").decode('UTF-8')
+			ret: Optional[str] = SysCommand(f"systemd-cryptenroll --fido2-device=list").decode('UTF-8')
 			if not ret:
 				log('Unable to retrieve fido2 devices', level=logging.ERROR)
 				return []
 
-			fido_devices = clear_vt100_escape_codes(ret)
+			fido_devices: str = clear_vt100_escape_codes(ret)  # type: ignore
 
 			manufacturer_pos = 0
 			product_pos = 0
@@ -58,7 +59,7 @@ class Fido2:
 				product = line[product_pos:]
 
 				devices.append(
-					Fido2Device(path, manufacturer, product)
+					Fido2Device(Path(path), manufacturer, product)
 				)
 
 			cls._loaded = True
diff --git a/archinstall/lib/general.py b/archinstall/lib/general.py
index 57f13288..997b7d67 100644
--- a/archinstall/lib/general.py
+++ b/archinstall/lib/general.py
@@ -19,9 +19,15 @@ import pathlib
 from datetime import datetime, date
 from typing import Callable, Optional, Dict, Any, List, Union, Iterator, TYPE_CHECKING
 
+from .exceptions import RequirementError, SysCallError
+from .output import log
+from .storage import storage
+
+
 if TYPE_CHECKING:
 	from .installer import Installer
 
+
 if sys.platform == 'linux':
 	from select import epoll, EPOLLIN, EPOLLHUP
 else:
@@ -53,30 +59,15 @@ else:
 			except OSError:
 				return []
 
-from .exceptions import RequirementError, SysCallError
-from .output import log
-from .storage import storage
 
 def gen_uid(entropy_length :int = 256) -> str:
 	return hashlib.sha512(os.urandom(entropy_length)).hexdigest()
 
+
 def generate_password(length :int = 64) -> str:
 	haystack = string.printable # digits, ascii_letters, punctiation (!"#$[] etc) and whitespace
 	return ''.join(secrets.choice(haystack) for i in range(length))
 
-def multisplit(s :str, splitters :List[str]) -> str:
-	s = [s, ]
-	for key in splitters:
-		ns = []
-		for obj in s:
-			x = obj.split(key)
-			for index, part in enumerate(x):
-				if len(part):
-					ns.append(part)
-				if index < len(x) - 1:
-					ns.append(key)
-		s = ns
-	return s
 
 def locate_binary(name :str) -> str:
 	for PATH in os.environ['PATH'].split(':'):
@@ -88,20 +79,20 @@ def locate_binary(name :str) -> str:
 
 	raise RequirementError(f"Binary {name} does not exist.")
 
-def clear_vt100_escape_codes(data :Union[bytes, str]):
+
+def clear_vt100_escape_codes(data :Union[bytes, str]) -> Union[bytes, str]:
 	# https://stackoverflow.com/a/43627833/929999
 	if type(data) == bytes:
-		vt100_escape_regex = bytes(r'\x1B\[[?0-9;]*[a-zA-Z]', 'UTF-8')
-	else:
+		byte_vt100_escape_regex = bytes(r'\x1B\[[?0-9;]*[a-zA-Z]', 'UTF-8')
+		data = re.sub(byte_vt100_escape_regex, b'', data)
+	elif type(data) == str:
 		vt100_escape_regex = r'\x1B\[[?0-9;]*[a-zA-Z]'
-
-	for match in re.findall(vt100_escape_regex, data, re.IGNORECASE):
-		data = data.replace(match, '' if type(data) == str else b'')
+		data = re.sub(vt100_escape_regex, '', data)
+	else:
+		raise ValueError(f'Unsupported data type: {type(data)}')
 
 	return data
 
-def json_dumps(*args :str, **kwargs :str) -> str:
-	return json.dumps(*args, **{**kwargs, 'cls': JSON})
 
 class JsonEncoder:
 	@staticmethod
@@ -245,10 +236,12 @@ class SysCommandWorker:
 	def __iter__(self, *args :str, **kwargs :Dict[str, Any]) -> Iterator[bytes]:
 		for line in self._trace_log[self._trace_log_pos:self._trace_log.rfind(b'\n')].split(b'\n'):
 			if line:
+				escaped_line: bytes = line
+
 				if self.remove_vt100_escape_codes_from_lines:
-					line = clear_vt100_escape_codes(line)
+					escaped_line = clear_vt100_escape_codes(line)  # type: ignore
 
-				yield line + b'\n'
+				yield escaped_line + b'\n'
 
 		self._trace_log_pos = self._trace_log.rfind(b'\n')
 
@@ -279,7 +272,11 @@ class SysCommandWorker:
 			log(args[1], level=logging.DEBUG, fg='red')
 
 		if self.exit_code != 0:
-			raise SysCallError(f"{self.cmd} exited with abnormal exit code [{self.exit_code}]: {self._trace_log[-500:]}", self.exit_code, worker=self)
+			raise SysCallError(
+				f"{self.cmd} exited with abnormal exit code [{self.exit_code}]: {str(self._trace_log[-500:])}",
+				self.exit_code,
+				worker=self
+			)
 
 	def is_alive(self) -> bool:
 		self.poll()
@@ -328,7 +325,7 @@ class SysCommandWorker:
 				change_perm = True
 
 			with peak_logfile.open("a") as peek_output_log:
-				peek_output_log.write(output)
+				peek_output_log.write(str(output))
 
 			if change_perm:
 				os.chmod(str(peak_logfile), stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP)
@@ -497,7 +494,7 @@ class SysCommand:
 		clears any printed output if ``.peek_output=True``.
 		"""
 		if self.session:
-			return self.session
+			return True
 
 		with SysCommandWorker(
 			self.cmd,
diff --git a/archinstall/lib/hardware.py b/archinstall/lib/hardware.py
index 9660ea95..3759725f 100644
--- a/archinstall/lib/hardware.py
+++ b/archinstall/lib/hardware.py
@@ -2,7 +2,7 @@ import os
 import logging
 from functools import partial
 from pathlib import Path
-from typing import Iterator, Optional, Union
+from typing import Iterator, Optional, Dict
 
 from .general import SysCommand
 from .networking import list_interfaces, enrich_iface_types
@@ -61,15 +61,15 @@ AVAILABLE_GFX_DRIVERS = {
 	"VMware / VirtualBox (open-source)": ["mesa", "xf86-video-vmware"],
 }
 
-CPUINFO = Path("/proc/cpuinfo")
-MEMINFO = Path("/proc/meminfo")
-
 
 def cpuinfo() -> Iterator[dict[str, str]]:
-	"""Yields information about the CPUs of the system."""
-	cpu = {}
+	"""
+	Yields information about the CPUs of the system
+	"""
+	cpu_info_path = Path("/proc/cpuinfo")
+	cpu: Dict[str, str] = {}
 
-	with CPUINFO.open() as file:
+	with cpu_info_path.open() as file:
 		for line in file:
 			if not (line := line.strip()):
 				yield cpu
@@ -80,24 +80,31 @@ def cpuinfo() -> Iterator[dict[str, str]]:
 			cpu[key.strip()] = value.strip()
 
 
-def meminfo(key: Optional[str] = None) -> Union[dict[str, int], Optional[int]]:
-	"""Returns a dict with memory info if called with no args
+def all_meminfo() -> Dict[str, int]:
+	"""
+	Returns a dict with memory info if called with no args
 	or the value of the given key of said dict.
 	"""
-	with MEMINFO.open() as file:
-		mem_info = {
-			(columns := line.strip().split())[0].rstrip(':'): int(columns[1])
-			for line in file
-		}
+	mem_info_path = Path("/proc/meminfo")
+	mem_info: Dict[str, int] = {}
 
-	if key is None:
-		return mem_info
+	with mem_info_path.open() as file:
+		for line in file:
+			key, value = line.strip().split(':')
+			num = value.split()[0]
+			mem_info[key] = int(num)
+
+	return mem_info
 
-	return mem_info.get(key)
+
+def meminfo_for_key(key: str) -> int:
+	info = all_meminfo()
+	return info[key]
 
 
 def has_wifi() -> bool:
-	return 'WIRELESS' in enrich_iface_types(list_interfaces().values()).values()
+	ifaces = list(list_interfaces().values())
+	return 'WIRELESS' in enrich_iface_types(ifaces).values()
 
 
 def has_cpu_vendor(vendor_id: str) -> bool:
@@ -160,15 +167,15 @@ def product_name() -> Optional[str]:
 
 
 def mem_available() -> Optional[int]:
-	return meminfo('MemAvailable')
+	return meminfo_for_key('MemAvailable')
 
 
 def mem_free() -> Optional[int]:
-	return meminfo('MemFree')
+	return meminfo_for_key('MemFree')
 
 
 def mem_total() -> Optional[int]:
-	return meminfo('MemTotal')
+	return meminfo_for_key('MemTotal')
 
 
 def virtualization() -> Optional[str]:
@@ -182,9 +189,9 @@ def virtualization() -> Optional[str]:
 
 def is_vm() -> bool:
 	try:
-		return b"none" not in b"".join(SysCommand("systemd-detect-virt")).lower()
+		result = SysCommand("systemd-detect-virt")
+		return b"none" not in b"".join(result).lower()
 	except SysCallError as error:
 		log(f"System is not running in a VM: {error}", level=logging.DEBUG)
-	return None
 
-# TODO: Add more identifiers
+	return False
diff --git a/archinstall/lib/installer.py b/archinstall/lib/installer.py
index ddbcc2f2..b6eaa797 100644
--- a/archinstall/lib/installer.py
+++ b/archinstall/lib/installer.py
@@ -7,7 +7,7 @@ import shutil
 import subprocess
 import time
 from pathlib import Path
-from typing import Any, Iterator, List, Mapping, Optional, TYPE_CHECKING, Union, Dict
+from typing import Any, List, Optional, TYPE_CHECKING, Union, Dict, Callable, Iterable
 
 from . import disk
 from .exceptions import DiskError, ServiceException, RequirementError, HardwareIncompatibilityError, SysCallError
@@ -36,32 +36,6 @@ __packages__ = ["base", "base-devel", "linux-firmware", "linux", "linux-lts", "l
 __accessibility_packages__ = ["brltty", "espeakup", "alsa-utils"]
 
 
-class InstallationFile:
-	def __init__(self, installation :'Installer', filename :str, owner :str, mode :str = "w"):
-		self.installation = installation
-		self.filename = filename
-		self.owner = owner
-		self.mode = mode
-		self.fh = None
-
-	def __enter__(self) -> 'InstallationFile':
-		self.fh = open(self.filename, self.mode)
-		return self
-
-	def __exit__(self, *args :str) -> None:
-		self.fh.close()
-		self.installation.chown(self.owner, self.filename)
-
-	def write(self, data: Union[str, bytes]) -> int:
-		return self.fh.write(data)
-
-	def read(self, *args) -> Union[str, bytes]:
-		return self.fh.read(*args)
-
-# 	def poll(self, *args) -> bool:
-# 		return self.fh.poll(*args)
-
-
 def accessibility_tools_in_use() -> bool:
 	return os.system('systemctl is-active --quiet espeakup.service') == 0
 
@@ -106,15 +80,17 @@ class Installer:
 			self.kernels = kernels
 
 		self._disk_config = disk_config
-		self._disk_encryption = disk_encryption
 
-		if self._disk_encryption is None:
+		if disk_encryption is None:
 			self._disk_encryption = disk.DiskEncryption(disk.EncryptionType.NoEncryption)
+		else:
+			self._disk_encryption = disk_encryption
+
+		self.target: Path = target
 
-		self.target = target
 		self.init_time = time.strftime('%Y-%m-%d_%H-%M-%S')
 		self.milliseconds = int(str(time.time()).split('.')[1])
-		self.helper_flags = {'base': False, 'bootloader': False}
+		self.helper_flags: Dict[str, Any] = {'base': False, 'bootloader': None}
 		self.base_packages = base_packages
 
 		for kernel in self.kernels:
@@ -124,31 +100,33 @@ class Installer:
 		if accessibility_tools_in_use():
 			self.base_packages.extend(__accessibility_packages__)
 
-		self.post_base_install = []
+		self.post_base_install: List[Callable] = []
 
 		# TODO: Figure out which one of these two we'll use.. But currently we're mixing them..
 		storage['session'] = self
 		storage['installation_session'] = self
 
-		self.MODULES = []
-		self.BINARIES = []
-		self.FILES = []
+		self.modules: List[str] = []
+		self._binaries: List[str] = []
+		self._files: List[str] = []
+
 		# systemd, sd-vconsole and sd-encrypt will be replaced by udev, keymap and encrypt
 		# if HSM is not used to encrypt the root volume. Check mkinitcpio() function for that override.
-		self.HOOKS = ["base", "systemd", "autodetect", "keyboard", "sd-vconsole", "modconf", "block", "filesystems", "fsck"]
-		self.KERNEL_PARAMS = []
-		self.FSTAB_ENTRIES = []
+		self._hooks: List[str] = [
+			"base", "systemd", "autodetect", "keyboard",
+			"sd-vconsole", "modconf", "block", "filesystems", "fsck"
+		]
+		self._kernel_params: List[str] = []
+		self._fstab_entries: List[str] = []
 
 		self._zram_enabled = False
 
-	def __enter__(self, *args: str, **kwargs: str) -> 'Installer':
+	def __enter__(self) -> 'Installer':
 		return self
 
-	def __exit__(self, *args :str, **kwargs :str) -> bool:
-		# TODO: https://stackoverflow.com/questions/28157929/how-to-safely-handle-an-exception-inside-a-context-manager
-
-		if len(args) >= 2 and args[1]:
-			self.log(args[1], level=logging.ERROR, fg='red')
+	def __exit__(self, exc_type, exc_val, exc_tb):
+		if exc_type is not None:
+			log(exc_val, fg='red', level=logging.ERROR)
 
 			self.sync_log_to_install_medium()
 
@@ -156,7 +134,7 @@ class Installer:
 			# and then reboot, and a identical log file will be found in the ISO medium anyway.
 			print(_("[!] A log file has been created here: {}").format(os.path.join(storage['LOG_PATH'], storage['LOG_FILE'])))
 			print(_("    Please submit this issue (and file) to https://github.com/archlinux/archinstall/issues"))
-			raise args[1]
+			raise exc_val
 
 		if not (missing_steps := self.post_install_check()):
 			self.log('Installation completed without any errors. You may now reboot.', fg='green', level=logging.INFO)
@@ -164,6 +142,7 @@ class Installer:
 			return True
 		else:
 			self.log('Some required steps were not successfully installed/configured before leaving the installer:', fg='red', level=logging.WARNING)
+
 			for step in missing_steps:
 				self.log(f' - {step}', fg='red', level=logging.WARNING)
 
@@ -247,31 +226,32 @@ class Installer:
 		luks_handlers = {}
 
 		for part_mod in partitions:
-			luks_handler = disk.device_handler.unlock_luks2_dev(
-				part_mod.dev_path,
-				part_mod.mapper_name,
-				self._disk_encryption.encryption_password
-			)
-			luks_handlers[part_mod] = luks_handler
+			if part_mod.mapper_name and part_mod.dev_path:
+				luks_handler = disk.device_handler.unlock_luks2_dev(
+					part_mod.dev_path,
+					part_mod.mapper_name,
+					self._disk_encryption.encryption_password
+				)
+				luks_handlers[part_mod] = luks_handler
 
 		return luks_handlers
 
 	def _mount_partition(self, part_mod: disk.PartitionModification):
 		# it would be none if it's btrfs as the subvolumes will have the mountpoints defined
-		if part_mod.mountpoint is not None:
+		if part_mod.mountpoint and part_mod.dev_path:
 			target = self.target / part_mod.relative_mountpoint
 			disk.device_handler.mount(part_mod.dev_path, target, options=part_mod.mount_options)
 
-		if part_mod.fs_type == disk.FilesystemType.Btrfs:
+		if part_mod.fs_type == disk.FilesystemType.Btrfs and part_mod.dev_path:
 			self._mount_btrfs_subvol(part_mod.dev_path, part_mod.btrfs_subvols)
 
 	def _mount_luks_partiton(self, part_mod: disk.PartitionModification, luks_handler: Luks2):
 		# it would be none if it's btrfs as the subvolumes will have the mountpoints defined
-		if part_mod.mountpoint is not None:
+		if part_mod.mountpoint and luks_handler.mapper_dev:
 			target = self.target / part_mod.relative_mountpoint
 			disk.device_handler.mount(luks_handler.mapper_dev, target, options=part_mod.mount_options)
 
-		if part_mod.fs_type == disk.FilesystemType.Btrfs:
+		if part_mod.fs_type == disk.FilesystemType.Btrfs and luks_handler.mapper_dev:
 			self._mount_btrfs_subvol(luks_handler.mapper_dev, part_mod.btrfs_subvols)
 
 	def _mount_btrfs_subvol(self, dev_path: Path, subvolumes: List[disk.SubvolumeModification]):
@@ -346,15 +326,15 @@ class Installer:
 		SysCommand(f'chmod 0600 {self.target}{file}')
 		SysCommand(f'mkswap {self.target}{file}')
 
-		self.FSTAB_ENTRIES.append(f'{file} none swap defaults 0 0')
+		self._fstab_entries.append(f'{file} none swap defaults 0 0')
 
 		if enable_resume:
 			resume_uuid = SysCommand(f'findmnt -no UUID -T {self.target}{file}').decode('UTF-8').strip()
 			resume_offset = SysCommand(f'/usr/bin/filefrag -v {self.target}{file}').decode('UTF-8').split('0:', 1)[1].split(":", 1)[1].split("..", 1)[0].strip()
 
-			self.HOOKS.append('resume')
-			self.KERNEL_PARAMS.append(f'resume=UUID={resume_uuid}')
-			self.KERNEL_PARAMS.append(f'resume_offset={resume_offset}')
+			self._hooks.append('resume')
+			self._kernel_params.append(f'resume=UUID={resume_uuid}')
+			self._kernel_params.append(f'resume_offset={resume_offset}')
 
 	def post_install_check(self, *args :str, **kwargs :str) -> List[str]:
 		return [step for step, flag in self.helper_flags.items() if flag is False]
@@ -411,7 +391,7 @@ class Installer:
 				else:
 					pacman_conf.write(line)
 
-	def pacstrap(self, *packages: Union[str, List[str]], **kwargs :str) -> bool:
+	def _pacstrap(self, packages: Union[str, List[str]]) -> bool:
 		if type(packages[0]) in (list, tuple):
 			packages = packages[0]
 
@@ -430,9 +410,9 @@ class Installer:
 
 			if storage['arguments'].get('silent', False) is False:
 				if input('Would you like to re-try this download? (Y/n): ').lower().strip() in ('', 'y'):
-					return self.pacstrap(*packages, **kwargs)
+					return self._pacstrap(packages)
 
-			raise RequirementError(f'Could not sync mirrors: {error}', level=logging.ERROR, fg="red")
+			raise RequirementError(f'Could not sync mirrors: {error}')
 
 		try:
 			SysCommand(f'/usr/bin/pacstrap -C /etc/pacman.conf -K {self.target} {" ".join(packages)} --noconfirm', peek_output=True)
@@ -442,40 +422,44 @@ class Installer:
 
 			if storage['arguments'].get('silent', False) is False:
 				if input('Would you like to re-try this download? (Y/n): ').lower().strip() in ('', 'y'):
-					return self.pacstrap(*packages, **kwargs)
+					return self._pacstrap(packages)
 
 			raise RequirementError("Pacstrap failed. See /var/log/archinstall/install.log or above message for error details.")
 
-	def set_mirrors(self, mirrors :Mapping[str, Iterator[str]]) -> None:
+	def set_mirrors(self, mirrors: Dict[str, Iterable[str]]):
 		for plugin in plugins.values():
 			if hasattr(plugin, 'on_mirrors'):
 				if result := plugin.on_mirrors(mirrors):
 					mirrors = result
 
-		return use_mirrors(mirrors, destination=f'{self.target}/etc/pacman.d/mirrorlist')
+		destination = f'{self.target}/etc/pacman.d/mirrorlist'
+		use_mirrors(mirrors, destination=destination)
 
 	def genfstab(self, flags :str = '-pU'):
 		self.log(f"Updating {self.target}/etc/fstab", level=logging.INFO)
 
 		try:
-			fstab = SysCommand(f'/usr/bin/genfstab {flags} {self.target}')
+			gen_fstab = SysCommand(f'/usr/bin/genfstab {flags} {self.target}').decode()
 		except SysCallError as error:
 			raise RequirementError(f'Could not generate fstab, strapping in packages most likely failed (disk out of space?)\n Error: {error}')
 
-		with open(f"{self.target}/etc/fstab", 'a') as fstab_fh:
-			fstab_fh.write(fstab.decode())
+		if not gen_fstab:
+			raise RequirementError(f'Genrating fstab returned empty value')
+
+		with open(f"{self.target}/etc/fstab", 'a') as fp:
+			fp.write(gen_fstab)
 
 		if not os.path.isfile(f'{self.target}/etc/fstab'):
-			raise RequirementError(f'Could not generate fstab, strapping in packages most likely failed (disk out of space?)\n Error: {fstab}')
+			raise RequirementError(f'Could not create fstab file')
 
 		for plugin in plugins.values():
 			if hasattr(plugin, 'on_genfstab'):
 				if plugin.on_genfstab(self) is True:
 					break
 
-		with open(f"{self.target}/etc/fstab", 'a') as fstab_fh:
-			for entry in self.FSTAB_ENTRIES:
-				fstab_fh.write(f'{entry}\n')
+		with open(f"{self.target}/etc/fstab", 'a') as fp:
+			for entry in self._fstab_entries:
+				fp.write(f'{entry}\n')
 
 		for mod in self._disk_config.device_modifications:
 			for part_mod in mod.partitions:
@@ -583,7 +567,7 @@ class Installer:
 		# fstrim is owned by util-linux, a dependency of both base and systemd.
 		self.enable_service("fstrim.timer")
 
-	def enable_service(self, *services: Union[str, List[str]]) -> None:
+	def enable_service(self, services: Union[str, List[str]]) -> None:
 		if type(services[0]) in (list, tuple):
 			services = services[0]
 
@@ -611,19 +595,7 @@ class Installer:
 		subprocess.check_call(f"/usr/bin/arch-chroot {self.target}", shell=True)
 
 	def configure_nic(self, network_config: NetworkConfiguration) -> None:
-		from .systemd import Networkd
-
-		if network_config.dhcp:
-			conf = Networkd(Match={"Name": network_config.iface}, Network={"DHCP": "yes"})
-		else:
-			network = {"Address": network_config.ip}
-			if network_config.gateway:
-				network["Gateway"] = network_config.gateway
-			if network_config.dns:
-				dns = network_config.dns
-				network["DNS"] = dns if isinstance(dns, list) else [dns]
-
-			conf = Networkd(Match={"Name": network_config.iface}, Network=network)
+		conf = network_config.as_systemd_config()
 
 		for plugin in plugins.values():
 			if hasattr(plugin, 'on_configure_nic'):
@@ -663,7 +635,7 @@ class Installer:
 					# Otherwise, we can go ahead and add the required package
 					# and enable it's service:
 					else:
-						self.pacstrap('iwd')
+						self._pacstrap('iwd')
 						self.enable_service('iwd')
 
 				for psk in psk_files:
@@ -682,12 +654,12 @@ class Installer:
 				if self.helper_flags.get('base', False) is False:
 
 					def post_install_enable_networkd_resolved(*args :str, **kwargs :str):
-						self.enable_service('systemd-networkd', 'systemd-resolved')
+						self.enable_service(['systemd-networkd', 'systemd-resolved'])
 
 					self.post_base_install.append(post_install_enable_networkd_resolved)
 				# Otherwise, we can go ahead and enable the services
 				else:
-					self.enable_service('systemd-networkd', 'systemd-resolved')
+					self.enable_service(['systemd-networkd', 'systemd-resolved'])
 
 		return True
 
@@ -704,9 +676,9 @@ class Installer:
 				fh.write(f"KEYMAP={storage['arguments']['keyboard-layout']}\n")
 
 		with open(f'{self.target}/etc/mkinitcpio.conf', 'w') as mkinit:
-			mkinit.write(f"MODULES=({' '.join(self.MODULES)})\n")
-			mkinit.write(f"BINARIES=({' '.join(self.BINARIES)})\n")
-			mkinit.write(f"FILES=({' '.join(self.FILES)})\n")
+			mkinit.write(f"MODULES=({' '.join(self.modules)})\n")
+			mkinit.write(f"BINARIES=({' '.join(self._binaries)})\n")
+			mkinit.write(f"FILES=({' '.join(self._files)})\n")
 
 			if not self._disk_encryption.hsm_device:
 				# For now, if we don't use HSM we revert to the old
@@ -714,9 +686,9 @@ class Installer:
 				# This is purely for stability reasons, we're going away from this.
 				# * systemd -> udev
 				# * sd-vconsole -> keymap
-				self.HOOKS = [hook.replace('systemd', 'udev').replace('sd-vconsole', 'keymap') for hook in self.HOOKS]
+				self._hooks = [hook.replace('systemd', 'udev').replace('sd-vconsole', 'keymap') for hook in self._hooks]
 
-			mkinit.write(f"HOOKS=({' '.join(self.HOOKS)})\n")
+			mkinit.write(f"HOOKS=({' '.join(self._hooks)})\n")
 
 		try:
 			SysCommand(f'/usr/bin/arch-chroot {self.target} mkinitcpio {" ".join(flags)}')
@@ -736,25 +708,25 @@ class Installer:
 				if (pkg := part.fs_type.installation_pkg) is not None:
 					self.base_packages.append(pkg)
 				if (module := part.fs_type.installation_module) is not None:
-					self.MODULES.append(module)
+					self.modules.append(module)
 				if (binary := part.fs_type.installation_binary) is not None:
-					self.BINARIES.append(binary)
+					self._binaries.append(binary)
 
 				# There is not yet an fsck tool for NTFS. If it's being used for the root filesystem, the hook should be removed.
 				if part.fs_type.fs_type_mount == 'ntfs3' and part.mountpoint == self.target:
-					if 'fsck' in self.HOOKS:
-						self.HOOKS.remove('fsck')
+					if 'fsck' in self._hooks:
+						self._hooks.remove('fsck')
 
 				if part in self._disk_encryption.partitions:
 					if self._disk_encryption.hsm_device:
 						# Required bby mkinitcpio to add support for fido2-device options
-						self.pacstrap('libfido2')
+						self._pacstrap('libfido2')
 
-						if 'sd-encrypt' not in self.HOOKS:
-							self.HOOKS.insert(self.HOOKS.index('filesystems'), 'sd-encrypt')
+						if 'sd-encrypt' not in self._hooks:
+							self._hooks.insert(self._hooks.index('filesystems'), 'sd-encrypt')
 					else:
-						if 'encrypt' not in self.HOOKS:
-							self.HOOKS.insert(self.HOOKS.index('filesystems'), 'encrypt')
+						if 'encrypt' not in self._hooks:
+							self._hooks.insert(self._hooks.index('filesystems'), 'encrypt')
 
 		if not has_uefi():
 			self.base_packages.append('grub')
@@ -786,7 +758,7 @@ class Installer:
 		else:
 			self.log("The testing flag is not set. This system will be installed without testing repositories enabled.")
 
-		self.pacstrap(self.base_packages)
+		self._pacstrap(self.base_packages)
 		self.helper_flags['base-strapped'] = True
 
 		# This handles making sure that the repositories we enabled persist on the installed system
@@ -826,7 +798,7 @@ class Installer:
 	def setup_swap(self, kind :str = 'zram'):
 		if kind == 'zram':
 			self.log(f"Setting up swap on zram")
-			self.pacstrap('zram-generator')
+			self._pacstrap('zram-generator')
 
 			# We could use the default example below, but maybe not the best idea: https://github.com/archlinux/archinstall/pull/678#issuecomment-962124813
 			# zram_example_location = '/usr/share/doc/zram-generator/zram-generator.conf.example'
@@ -853,7 +825,7 @@ class Installer:
 		return None
 
 	def _add_systemd_bootloader(self, root_partition: disk.PartitionModification):
-		self.pacstrap('efibootmgr')
+		self._pacstrap('efibootmgr')
 
 		if not has_uefi():
 			raise HardwareIncompatibilityError
@@ -919,7 +891,7 @@ class Installer:
 					# blkid doesn't trigger on loopback devices really well,
 					# so we'll use the old manual method until we get that sorted out.
 
-					options_entry = f'rw rootfstype={root_partition.fs_type.fs_type_mount} {" ".join(self.KERNEL_PARAMS)}\n'
+					options_entry = f'rw rootfstype={root_partition.fs_type.fs_type_mount} {" ".join(self._kernel_params)}\n'
 
 					for sub_vol in root_partition.btrfs_subvols:
 						if sub_vol.is_root():
@@ -958,7 +930,7 @@ class Installer:
 		boot_partition: disk.PartitionModification,
 		root_partition: disk.PartitionModification
 	):
-		self.pacstrap('grub')  # no need?
+		self._pacstrap('grub')  # no need?
 
 		_file = "/etc/default/grub"
 
@@ -977,7 +949,7 @@ class Installer:
 		log(f"GRUB boot partition: {boot_partition.dev_path}", level=logging.INFO)
 
 		if has_uefi():
-			self.pacstrap('efibootmgr') # TODO: Do we need? Yes, but remove from minimal_installation() instead?
+			self._pacstrap('efibootmgr') # TODO: Do we need? Yes, but remove from minimal_installation() instead?
 
 			try:
 				SysCommand(f'/usr/bin/arch-chroot {self.target} grub-install --debug --target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB --removable', peek_output=True)
@@ -987,8 +959,20 @@ class Installer:
 				except SysCallError as error:
 					raise DiskError(f"Could not install GRUB to {self.target}/boot: {error}")
 		else:
+			device = disk.device_handler.get_device_by_partition_path(boot_partition.safe_dev_path)
+
+			if not device:
+				raise ValueError(f'Can not find block device: {boot_partition.safe_dev_path}')
+
 			try:
-				SysCommand(f'/usr/bin/arch-chroot {self.target} grub-install --debug --target=i386-pc --recheck {boot_partition.parent}', peek_output=True)
+				cmd = f'/usr/bin/arch-chroot' \
+					f' {self.target}' \
+					f' grub-install' \
+					f' --debug' \
+					f' --target=i386-pc' \
+					f' --recheck {device.device_info.path}'
+
+				SysCommand(cmd, peek_output=True)
 			except SysCallError as error:
 				raise DiskError(f"Failed to install GRUB boot on {boot_partition.dev_path}: {error}")
 
@@ -1004,7 +988,7 @@ class Installer:
 		boot_partition: disk.PartitionModification,
 		root_partition: disk.PartitionModification
 	):
-		self.pacstrap('efibootmgr')
+		self._pacstrap('efibootmgr')
 
 		if not has_uefi():
 			raise HardwareIncompatibilityError
@@ -1038,17 +1022,30 @@ class Installer:
 				# TODO: We need to detect if the encrypted device is a whole disk encryption,
 				#       or simply a partition encryption. Right now we assume it's a partition (and we always have)
 				log(f'Identifying root partition by PARTUUID: {root_partition.partuuid}', level=logging.DEBUG)
-				kernel_parameters.append(f'cryptdevice=PARTUUID={root_partition.partuuid}:luksdev root=/dev/mapper/luksdev rw rootfstype={root_partition.fs_type.value} {" ".join(self.KERNEL_PARAMS)}')
+				kernel_parameters.append(f'cryptdevice=PARTUUID={root_partition.partuuid}:luksdev root=/dev/mapper/luksdev rw rootfstype={root_partition.fs_type.value} {" ".join(self._kernel_params)}')
 			else:
 				log(f'Root partition is an encrypted device identifying by PARTUUID: {root_partition.partuuid}', level=logging.DEBUG)
-				kernel_parameters.append(f'root=PARTUUID={root_partition.partuuid} rw rootfstype={root_partition.fs_type.value} {" ".join(self.KERNEL_PARAMS)}')
+				kernel_parameters.append(f'root=PARTUUID={root_partition.partuuid} rw rootfstype={root_partition.fs_type.value} {" ".join(self._kernel_params)}')
+
+			device = disk.device_handler.get_device_by_partition_path(boot_partition.safe_dev_path)
 
-			device = disk.device_handler.get_device_by_partition_path(boot_partition.dev_path)
-			SysCommand(f'efibootmgr --disk {device.path} --part {device.path} --create --label "{label}" --loader {loader} --unicode \'{" ".join(kernel_parameters)}\' --verbose')
+			if not device:
+				raise ValueError(f'Unable to find block device: {boot_partition.safe_dev_path}')
+
+			cmd = f'efibootmgr ' \
+				f'--disk {device.device_info.path} ' \
+				f'--part {boot_partition.safe_dev_path} ' \
+				f'--create ' \
+				f'--label "{label}" ' \
+				f'--loader {loader} ' \
+				f'--unicode \'{" ".join(kernel_parameters)}\' ' \
+				f'--verbose'
+
+			SysCommand(cmd)
 
 		self.helper_flags['bootloader'] = "efistub"
 
-	def add_bootloader(self, bootloader: Bootloader) -> bool:
+	def add_bootloader(self, bootloader: Bootloader):
 		"""
 		Adds a bootloader to the installation instance.
 		Archinstall supports one of three types:
@@ -1056,8 +1053,7 @@ class Installer:
 		* grub
 		* efistub (beta)
 
-		:param bootloader: Can be one of the three strings
-			'systemd-bootctl', 'grub' or 'efistub' (beta)
+		:param bootloader: Type of bootloader to be added
 		"""
 
 		for plugin in plugins.values():
@@ -1089,8 +1085,8 @@ class Installer:
 			case Bootloader.Efistub:
 				self._add_efistub_bootloader(boot_partition, root_partition)
 
-	def add_additional_packages(self, *packages: Union[str, List[str]]) -> bool:
-		return self.pacstrap(*packages)
+	def add_additional_packages(self, packages: Union[str, List[str]]) -> bool:
+		return self._pacstrap(packages)
 
 	def _enable_users(self, service: str, users: List[User]):
 		for user in users:
@@ -1201,9 +1197,6 @@ class Installer:
 		except SysCallError:
 			return False
 
-	def create_file(self, filename :str, owner :Optional[str] = None) -> InstallationFile:
-		return InstallationFile(self, filename, owner)
-
 	def set_keyboard_language(self, language: str) -> bool:
 		log(f"Setting keyboard language to {language}", level=logging.INFO)
 		if len(language.strip()):
diff --git a/archinstall/lib/menu/abstract_menu.py b/archinstall/lib/menu/abstract_menu.py
index 53816655..e44d65a4 100644
--- a/archinstall/lib/menu/abstract_menu.py
+++ b/archinstall/lib/menu/abstract_menu.py
@@ -482,9 +482,9 @@ class AbstractMenu:
 			if item in self._menus_to_enable():
 				yield item
 
-	def _select_archinstall_language(self, preset_value: Language) -> Language:
+	def _select_archinstall_language(self, preset: Language) -> Language:
 		from ..user_interaction.general_conf import select_archinstall_language
-		language = select_archinstall_language(self.translation_handler.translated_languages, preset_value)
+		language = select_archinstall_language(self.translation_handler.translated_languages, preset)
 		self._translation_handler.activate(language)
 		return language
 
diff --git a/archinstall/lib/menu/menu.py b/archinstall/lib/menu/menu.py
index 44ac33a6..12dbf1f5 100644
--- a/archinstall/lib/menu/menu.py
+++ b/archinstall/lib/menu/menu.py
@@ -3,7 +3,7 @@ from enum import Enum, auto
 from os import system
 from typing import Dict, List, Union, Any, TYPE_CHECKING, Optional, Callable
 
-from simple_term_menu import TerminalMenu
+from simple_term_menu import TerminalMenu  # type: ignore
 
 from ..exceptions import RequirementError
 from ..output import log
@@ -29,11 +29,11 @@ class MenuSelection:
 
 	@property
 	def single_value(self) -> Any:
-		return self.value
+		return self.value  # type: ignore
 
 	@property
 	def multi_value(self) -> List[Any]:
-		return self.value
+		return self.value  # type: ignore
 
 
 class Menu(TerminalMenu):
@@ -67,7 +67,7 @@ class Menu(TerminalMenu):
 		preview_command: Optional[Callable] = None,
 		preview_size: float = 0.0,
 		preview_title: str = 'Info',
-		header: Union[List[str],str] = None,
+		header: Union[List[str], str] = [],
 		allow_reset: bool = False,
 		allow_reset_warning_msg: Optional[str] = None,
 		clear_screen: bool = True,
@@ -141,8 +141,6 @@ class Menu(TerminalMenu):
 			log(f"invalid parameter at Menu() call was at <{sys._getframe(1).f_code.co_name}>",level=logging.WARNING)
 			raise RequirementError("Menu() requires an iterable as option.")
 
-		self._default_str = str(_('(default)'))
-
 		if isinstance(p_options,dict):
 			options = list(p_options.keys())
 		else:
@@ -193,8 +191,7 @@ class Menu(TerminalMenu):
 		if default_option:
 			# if a default value was specified we move that one
 			# to the top of the list and mark it as default as well
-			default = f'{default_option} {self._default_str}'
-			self._menu_options = [default] + [o for o in self._menu_options if default_option != o]
+			self._menu_options = [self._default_menu_value] + [o for o in self._menu_options if default_option != o]
 
 		if display_back_option and not multi and skip:
 			skip_empty_entries = True
@@ -204,7 +201,18 @@ class Menu(TerminalMenu):
 			skip_empty_entries = True
 			self._menu_options += ['']
 
-		self._preselection(preset_values,cursor_index)
+		preset_list: Optional[List[str]] = None
+
+		if preset_values and isinstance(preset_values, str):
+			preset_list = [preset_values]
+
+		calc_cursor_idx = self._determine_cursor_pos(preset_list, cursor_index)
+
+		# when we're not in multi selection mode we don't care about
+		# passing the pre-selection list to the menu as the position
+		# of the cursor is the one determining the pre-selection
+		if not self._multi:
+			preset_values = None
 
 		cursor = "> "
 		main_menu_cursor_style = ("fg_cyan", "bold")
@@ -217,8 +225,8 @@ class Menu(TerminalMenu):
 			menu_cursor_style=main_menu_cursor_style,
 			menu_highlight_style=main_menu_style,
 			multi_select=multi,
-			preselected_entries=self.preset_values,
-			cursor_index=self.cursor_index,
+			preselected_entries=preset_values,
+			cursor_index=calc_cursor_idx,
 			preview_command=lambda x: self._show_preview(preview_command, x),
 			preview_size=preview_size,
 			preview_title=preview_title,
@@ -231,12 +239,17 @@ class Menu(TerminalMenu):
 			skip_empty_entries=skip_empty_entries
 		)
 
+	@property
+	def _default_menu_value(self) -> str:
+		default_str = str(_('(default)'))
+		return f'{self._default_option} {default_str}'
+
 	def _show_preview(self, preview_command: Optional[Callable], selection: str) -> Optional[str]:
 		if selection == self.back():
 			return None
 
 		if preview_command:
-			if self._default_option is not None and f'{self._default_option} {self._default_str}' == selection:
+			if self._default_option is not None and self._default_menu_value == selection:
 				selection = self._default_option
 			return preview_command(selection)
 
@@ -249,7 +262,7 @@ class Menu(TerminalMenu):
 			return MenuSelection(type_=MenuSelectionType.Reset)
 
 		def check_default(elem):
-			if self._default_option is not None and f'{self._default_option} {self._default_str}' in elem:
+			if self._default_option is not None and self._default_menu_value in elem:
 				return self._default_option
 			else:
 				return elem
@@ -297,31 +310,44 @@ class Menu(TerminalMenu):
 		pos = self._menu_entries.index(value)
 		self.set_cursor_pos(pos)
 
-	def _preselection(self,preset_values :Union[str, List[str]] = [], cursor_index : Optional[int] = None):
-		def from_preset_to_cursor():
-			if preset_values:
-				# if the value is not extant return 0 as cursor index
+	def _determine_cursor_pos(
+		self,
+		preset: Optional[List[str]] = None,
+		cursor_index: Optional[int] = None
+	) -> Optional[int]:
+		"""
+			The priority order to determine the cursor position is:
+			1. A static cursor position was provided
+			2. Preset values have been provided so the cursor will be
+				positioned on those
+			3. A default value for a selection is given so the cursor
+				will be placed on such
+		"""
+		if cursor_index:
+			return cursor_index
+
+		if preset:
+			indexes = []
+
+			for p in preset:
 				try:
-					if isinstance(preset_values,str):
-						self.cursor_index = self._menu_options.index(self.preset_values)
-					else:  # should return an error, but this is smoother
-						self.cursor_index = self._menu_options.index(self.preset_values[0])
-				except ValueError:
-					self.cursor_index = 0
-
-		self.cursor_index = cursor_index
-		if not preset_values:
-			self.preset_values = None
-			return
-
-		self.preset_values = preset_values
+					# the options of the table selection menu
+					# are already escaped so we have to escape
+					# the preset values as well for the comparison
+					if '|' in p:
+						p = p.replace('|', '\\|')
+
+					idx = self._menu_options.index(p)
+					indexes.append(idx)
+				except (IndexError, ValueError):
+					log(f'Error finding index of {p}: {self._menu_options}', level=logging.DEBUG)
+
+			if len(indexes) == 0:
+				indexes.append(0)
+
+			return indexes[0]
+
 		if self._default_option:
-			if isinstance(preset_values,str) and self._default_option == preset_values:
-				self.preset_values = f"{preset_values} {self._default_str}"
-			elif isinstance(preset_values,(list,tuple)) and self._default_option in preset_values:
-				idx = preset_values.index(self._default_option)
-				self.preset_values[idx] = f"{preset_values[idx]} {self._default_str}"
-		if cursor_index is None or not self._multi:
-			from_preset_to_cursor()
-		if not self._multi: # Not supported by the infraestructure
-			self.preset_values = None
+			return self._menu_options.index(self._default_menu_value)
+
+		return None
diff --git a/archinstall/lib/mirrors.py b/archinstall/lib/mirrors.py
index 4bae6d8b..15d0fd6b 100644
--- a/archinstall/lib/mirrors.py
+++ b/archinstall/lib/mirrors.py
@@ -3,12 +3,22 @@ import pathlib
 import urllib.error
 import urllib.request
 from typing import Union, Iterable, Dict, Any, List
+from dataclasses import dataclass
 
 from .general import SysCommand
 from .output import log
 from .storage import storage
 
-def sort_mirrorlist(raw_data :bytes, sort_order=["https", "http"]) -> bytes:
+
+@dataclass
+class CustomMirror:
+	url: str
+	signcheck: str
+	signoptions: str
+	name: str
+
+
+def sort_mirrorlist(raw_data :bytes, sort_order: List[str] = ['https', 'http']) -> bytes:
 	"""
 	This function can sort /etc/pacman.d/mirrorlist according to the
 	mirror's URL prefix. By default places HTTPS before HTTP but it also
@@ -28,8 +38,9 @@ def sort_mirrorlist(raw_data :bytes, sort_order=["https", "http"]) -> bytes:
 	from server url definitions (commented or uncommented).
 	"""
 	comments_and_whitespaces = b""
+	sort_order += ['Unknown']
+	categories: Dict[str, List] = {key: [] for key in sort_order}
 
-	categories = {key: [] for key in sort_order + ["Unknown"]}
 	for line in raw_data.split(b"\n"):
 		if line[0:2] in (b'##', b''):
 			comments_and_whitespaces += line + b'\n'
@@ -82,18 +93,18 @@ def filter_mirrors_by_region(regions :str,
 		return new_list.decode('UTF-8')
 
 
-def add_custom_mirrors(mirrors: List[str], *args :str, **kwargs :str) -> bool:
+def add_custom_mirrors(mirrors: List[CustomMirror]) -> bool:
 	"""
 	This will append custom mirror definitions in pacman.conf
 
-	:param mirrors: A list of mirror data according to: `{'url': 'http://url.com', 'signcheck': 'Optional', 'signoptions': 'TrustAll', 'name': 'testmirror'}`
-	:type mirrors: dict
+	:param mirrors: A list of custom mirrors
+	:type mirrors: List[CustomMirror]
 	"""
 	with open('/etc/pacman.conf', 'a') as pacman:
 		for mirror in mirrors:
-			pacman.write(f"[{mirror['name']}]\n")
-			pacman.write(f"SigLevel = {mirror['signcheck']} {mirror['signoptions']}\n")
-			pacman.write(f"Server = {mirror['url']}\n")
+			pacman.write(f"[{mirror.name}]\n")
+			pacman.write(f"SigLevel = {mirror.signcheck} {mirror.signoptions}\n")
+			pacman.write(f"Server = {mirror.url}\n")
 
 	return True
 
@@ -123,7 +134,7 @@ def insert_mirrors(mirrors :Dict[str, Any], *args :str, **kwargs :str) -> bool:
 def use_mirrors(
 	regions: Dict[str, Iterable[str]],
 	destination: str = '/etc/pacman.d/mirrorlist'
-) -> None:
+):
 	log(f'A new package mirror-list has been created: {destination}', level=logging.INFO)
 	with open(destination, 'w') as mirrorlist:
 		for region, mirrors in regions.items():
@@ -146,7 +157,7 @@ def re_rank_mirrors(
 
 
 def list_mirrors(sort_order :List[str] = ["https", "http"]) -> Dict[str, Any]:
-	regions = {}
+	regions: Dict[str, Dict[str, Any]] = {}
 
 	if storage['arguments']['offline']:
 		with pathlib.Path('/etc/pacman.d/mirrorlist').open('rb') as fh:
@@ -170,18 +181,19 @@ def list_mirrors(sort_order :List[str] = ["https", "http"]) -> Dict[str, Any]:
 		if len(line.strip()) == 0:
 			continue
 
-		line = line.decode('UTF-8').strip('\n').strip('\r')
-		if line[:3] == '## ':
-			region = line[3:]
-		elif line[:10] == '#Server = ':
+		clean_line = line.decode('UTF-8').strip('\n').strip('\r')
+
+		if clean_line[:3] == '## ':
+			region = clean_line[3:]
+		elif clean_line[:10] == '#Server = ':
 			regions.setdefault(region, {})
 
-			url = line.lstrip('#Server = ')
+			url = clean_line.lstrip('#Server = ')
 			regions[region][url] = True
-		elif line.startswith('Server = '):
+		elif clean_line.startswith('Server = '):
 			regions.setdefault(region, {})
 
-			url = line.lstrip('Server = ')
+			url = clean_line.lstrip('Server = ')
 			regions[region][url] = True
 
 	return regions
diff --git a/archinstall/lib/models/network_configuration.py b/archinstall/lib/models/network_configuration.py
index b7ab690d..66230e24 100644
--- a/archinstall/lib/models/network_configuration.py
+++ b/archinstall/lib/models/network_configuration.py
@@ -1,8 +1,9 @@
 from __future__ import annotations
 
-from dataclasses import dataclass
+import logging
+from dataclasses import dataclass, field
 from enum import Enum
-from typing import List, Optional, Dict, Union, Any, TYPE_CHECKING
+from typing import List, Optional, Dict, Union, Any, TYPE_CHECKING, Tuple
 
 from ..output import log
 from ..storage import storage
@@ -24,7 +25,7 @@ class NetworkConfiguration:
 	ip: Optional[str] = None
 	dhcp: bool = True
 	gateway: Optional[str] = None
-	dns: Union[None, List[str]] = None
+	dns: List[str] = field(default_factory=list)
 
 	def __str__(self):
 		if self.is_iso():
@@ -53,6 +54,33 @@ class NetworkConfiguration:
 
 		return data
 
+	def as_systemd_config(self) -> str:
+		match: List[Tuple[str, str]] = []
+		network: List[Tuple[str, str]] = []
+
+		if self.iface:
+			match.append(('Name', self.iface))
+
+		if self.dhcp:
+			network.append(('DHCP', 'yes'))
+		else:
+			if self.ip:
+				network.append(('Address', self.ip))
+			if self.gateway:
+				network.append(('Gateway', self.gateway))
+			for dns in self.dns:
+				network.append(('DNS', dns))
+
+		config = {'Match': match, 'Network': network}
+
+		config_str = ''
+		for top, entries in config.items():
+			config_str += f'[{top}]\n'
+			config_str += '\n'.join([f'{k}={v}' for k, v in entries])
+			config_str += '\n\n'
+
+		return config_str
+
 	def json(self) -> Dict:
 		# for json serialization when calling json.dumps(...) on this class
 		return self.__dict__
@@ -90,41 +118,14 @@ class NetworkConfigurationHandler:
 			# Perform a copy of the config
 			if self._configuration.is_iso():
 				installation.copy_iso_network_config(
-					enable_services=True)  # Sources the ISO network configuration to the install medium.
+					enable_services=True # Sources the ISO network configuration to the install medium.
+				)
 			elif self._configuration.is_network_manager():
 				installation.add_additional_packages(["networkmanager"])
 				if (profile := storage['arguments'].get('profile_config')) and profile.is_desktop_type_profile:
 					installation.add_additional_packages(["network-manager-applet"])
 				installation.enable_service('NetworkManager.service')
 
-	def _backwards_compability_config(self, config: Union[str,Dict[str, str]]) -> Union[List[NetworkConfiguration], NetworkConfiguration, None]:
-		def get(config: Dict[str, str], key: str) -> List[str]:
-			if (value := config.get(key, None)) is not None:
-				return [value]
-			return []
-
-		if isinstance(config, str):  # is a ISO network
-			return NetworkConfiguration(NicType.ISO)
-		elif config.get('NetworkManager'):  # is a network manager configuration
-			return NetworkConfiguration(NicType.NM)
-		elif 'ip' in config:
-			return [NetworkConfiguration(
-				NicType.MANUAL,
-				iface=config.get('nic', ''),
-				ip=config.get('ip'),
-				gateway=config.get('gateway', ''),
-				dns=get(config, 'dns'),
-				dhcp=False
-			)]
-		elif 'nic' in config:
-			return [NetworkConfiguration(
-				NicType.MANUAL,
-				iface=config.get('nic', ''),
-				dhcp=True
-			)]
-		else:  # not recognized
-			return None
-
 	def _parse_manual_config(self, configs: List[Dict[str, Any]]) -> Optional[List[NetworkConfiguration]]:
 		configurations = []
 
@@ -145,13 +146,17 @@ class NetworkConfigurationHandler:
 					log(_('Manual nic configuration with no auto DHCP requires an IP address'), fg='red')
 					exit(1)
 
+				dns = manual_config.get('dns', [])
+				if not isinstance(dns, list):
+					dns = [dns]
+
 				configurations.append(
 					NetworkConfiguration(
 						NicType.MANUAL,
 						iface=iface,
 						ip=ip,
 						gateway=manual_config.get('gateway', ''),
-						dns=manual_config.get('dns', []),
+						dns=dns,
 						dhcp=False
 					)
 				)
@@ -176,8 +181,5 @@ class NetworkConfigurationHandler:
 				self._configuration = NetworkConfiguration(type_)
 			else:  # manual configuration settings
 				self._configuration = self._parse_manual_config([config])
-		else:  # old style definitions
-			network_config = self._backwards_compability_config(config)
-			if network_config:
-				return network_config
-			return None
+		else:
+			log(f'Unable to parse network configuration: {config}', level=logging.DEBUG)
diff --git a/archinstall/lib/plugins.py b/archinstall/lib/plugins.py
index 0ff63610..b1ece04f 100644
--- a/archinstall/lib/plugins.py
+++ b/archinstall/lib/plugins.py
@@ -3,77 +3,86 @@ import importlib
 import logging
 import os
 import sys
-import pathlib
 import urllib.parse
 import urllib.request
 from importlib import metadata
+from pathlib import Path
 from typing import Optional, List
-from types import ModuleType
 
 from .output import log
 from .storage import storage
 
 plugins = {}
 
+
 # 1: List archinstall.plugin definitions
 # 2: Load the plugin entrypoint
 # 3: Initiate the plugin and store it as .name in plugins
 for plugin_definition in metadata.entry_points().select(group='archinstall.plugin'):
 	plugin_entrypoint = plugin_definition.load()
+
 	try:
 		plugins[plugin_definition.name] = plugin_entrypoint()
 	except Exception as err:
-		log(err, level=logging.ERROR)
+		log(f'Error: {err}', level=logging.ERROR)
 		log(f"The above error was detected when loading the plugin: {plugin_definition}", fg="red", level=logging.ERROR)
 
 
-# The following functions and core are support structures for load_plugin()
-def localize_path(profile_path :str) -> str:
-	if (url := urllib.parse.urlparse(profile_path)).scheme and url.scheme in ('https', 'http'):
-		converted_path = f"/tmp/{os.path.basename(profile_path).replace('.py', '')}_{hashlib.md5(os.urandom(12)).hexdigest()}.py"
+def localize_path(path: Path) -> Path:
+	"""
+	Support structures for load_plugin()
+	"""
+	url = urllib.parse.urlparse(str(path))
+
+	if url.scheme and url.scheme in ('https', 'http'):
+		converted_path = Path(f'/tmp/{path.stem}_{hashlib.md5(os.urandom(12)).hexdigest()}.py')
 
 		with open(converted_path, "w") as temp_file:
 			temp_file.write(urllib.request.urlopen(url.geturl()).read().decode('utf-8'))
 
 		return converted_path
 	else:
-		return profile_path
+		return path
 
 
-def import_via_path(path :str, namespace :Optional[str] = None) -> ModuleType:
+def import_via_path(path: Path, namespace: Optional[str] = None) -> Optional[str]:
 	if not namespace:
 		namespace = os.path.basename(path)
 
 		if namespace == '__init__.py':
-			path = pathlib.PurePath(path)
 			namespace = path.parent.name
 
 	try:
 		spec = importlib.util.spec_from_file_location(namespace, path)
-		imported = importlib.util.module_from_spec(spec)
-		sys.modules[namespace] = imported
-		spec.loader.exec_module(sys.modules[namespace])
+		if spec and spec.loader:
+			imported = importlib.util.module_from_spec(spec)
+			sys.modules[namespace] = imported
+			spec.loader.exec_module(sys.modules[namespace])
 
 		return namespace
 	except Exception as err:
-		log(err, level=logging.ERROR)
+		log(f'Error: {err}', level=logging.ERROR)
 		log(f"The above error was detected when loading the plugin: {path}", fg="red", level=logging.ERROR)
 
 		try:
-			del(sys.modules[namespace]) # noqa: E275
-		except:
+			del sys.modules[namespace]
+		except Exception:
 			pass
 
-def find_nth(haystack :List[str], needle :str, n :int) -> int:
-	start = haystack.find(needle)
-	while start >= 0 and n > 1:
-		start = haystack.find(needle, start + len(needle))
-		n -= 1
-	return start
+	return namespace
+
+
+def find_nth(haystack: List[str], needle: str, n: int) -> Optional[int]:
+	indices = [idx for idx, elem in enumerate(haystack) if elem == needle]
+	if n <= len(indices):
+		return indices[n - 1]
+	return None
+
 
-def load_plugin(path :str) -> ModuleType:
-	parsed_url = urllib.parse.urlparse(path)
-	log(f"Loading plugin {parsed_url}.", fg="gray", level=logging.INFO)
+def load_plugin(path: Path):
+	namespace: Optional[str] = None
+	parsed_url = urllib.parse.urlparse(str(path))
+	log(f"Loading plugin from url {parsed_url}.", level=logging.INFO)
 
 	# The Profile was not a direct match on a remote URL
 	if not parsed_url.scheme:
@@ -81,9 +90,10 @@ def load_plugin(path :str) -> ModuleType:
 		if os.path.isfile(path):
 			namespace = import_via_path(path)
 	elif parsed_url.scheme in ('https', 'http'):
-		namespace = import_via_path(localize_path(path))
+		localized = localize_path(path)
+		namespace = import_via_path(localized)
 
-	if namespace in sys.modules:
+	if namespace and namespace in sys.modules:
 		# Version dependency via __archinstall__version__ variable (if present) in the plugin
 		# Any errors in version inconsistency will be handled through normal error handling if not defined.
 		if hasattr(sys.modules[namespace], '__archinstall__version__'):
@@ -99,7 +109,7 @@ def load_plugin(path :str) -> ModuleType:
 				plugins[namespace] = sys.modules[namespace].Plugin()
 				log(f"Plugin {plugins[namespace]} has been loaded.", fg="gray", level=logging.INFO)
 			except Exception as err:
-				log(err, level=logging.ERROR)
+				log(f'Error: {err}', level=logging.ERROR)
 				log(f"The above error was detected when initiating the plugin: {path}", fg="red", level=logging.ERROR)
 		else:
 			log(f"Plugin '{path}' is missing a valid entry-point or is corrupt.", fg="yellow", level=logging.WARNING)
diff --git a/archinstall/lib/profile/profiles_handler.py b/archinstall/lib/profile/profiles_handler.py
index a8b5cc22..824849c3 100644
--- a/archinstall/lib/profile/profiles_handler.py
+++ b/archinstall/lib/profile/profiles_handler.py
@@ -194,23 +194,23 @@ class ProfileHandler:
 							install_session.add_additional_packages(f"{kernel}-headers")
 
 						# I've had kernel regen fail if it wasn't installed before nvidia-dkms
-						install_session.add_additional_packages("dkms xorg-server xorg-xinit nvidia-dkms")
+						install_session.add_additional_packages(['dkms', 'xorg-server', 'xorg-xinit', 'nvidia-dkms'])
 						return
 				elif 'amdgpu' in driver_pkgs:
 					# The order of these two are important if amdgpu is installed #808
-					if 'amdgpu' in install_session.MODULES:
-						install_session.MODULES.remove('amdgpu')
-					install_session.MODULES.append('amdgpu')
+					if 'amdgpu' in install_session.modules:
+						install_session.modules.remove('amdgpu')
+					install_session.modules.append('amdgpu')
 
-					if 'radeon' in install_session.MODULES:
-						install_session.MODULES.remove('radeon')
-					install_session.MODULES.append('radeon')
+					if 'radeon' in install_session.modules:
+						install_session.modules.remove('radeon')
+					install_session.modules.append('radeon')
 
 			install_session.add_additional_packages(additional_pkg)
 		except Exception as err:
 			log(f"Could not handle nvidia and linuz-zen specific situations during xorg installation: {err}", level=logging.WARNING, fg="yellow")
 			# Prep didn't run, so there's no driver to install
-			install_session.add_additional_packages("xorg-server xorg-xinit")
+			install_session.add_additional_packages(['xorg-server', 'xorg-xinit'])
 
 	def install_profile_config(self, install_session: 'Installer', profile_config: ProfileConfiguration):
 		profile = profile_config.profile
diff --git a/archinstall/lib/systemd.py b/archinstall/lib/systemd.py
index 64ffcae4..6ccbc5f6 100644
--- a/archinstall/lib/systemd.py
+++ b/archinstall/lib/systemd.py
@@ -1,6 +1,6 @@
 import logging
 import time
-from typing import Iterator
+from typing import Iterator, Optional
 from .exceptions import SysCallError
 from .general import SysCommand, SysCommandWorker, locate_binary
 from .installer import Installer
@@ -8,51 +8,11 @@ from .output import log
 from .storage import storage
 
 
-class Ini:
-	def __init__(self, *args :str, **kwargs :str):
-		"""
-		Limited INI handler for now.
-		Supports multiple keywords through dictionary list items.
-		"""
-		self.kwargs = kwargs
-
-	def __str__(self) -> str:
-		result = ''
-		first_row_done = False
-		for top_level in self.kwargs:
-			if first_row_done:
-				result += f"\n[{top_level}]\n"
-			else:
-				result += f"[{top_level}]\n"
-				first_row_done = True
-
-			for key, val in self.kwargs[top_level].items():
-				if type(val) == list:
-					for item in val:
-						result += f"{key}={item}\n"
-				else:
-					result += f"{key}={val}\n"
-
-		return result
-
-
-class Systemd(Ini):
-	"""
-	Placeholder class to do systemd specific setups.
-	"""
-
-
-class Networkd(Systemd):
-	"""
-	Placeholder class to do systemd-network specific setups.
-	"""
-
-
 class Boot:
 	def __init__(self, installation: Installer):
 		self.instance = installation
 		self.container_name = 'archinstall'
-		self.session = None
+		self.session: Optional[SysCommandWorker] = None
 		self.ready = False
 
 	def __enter__(self) -> 'Boot':
@@ -63,17 +23,18 @@ class Boot:
 			self.session = existing_session.session
 			self.ready = existing_session.ready
 		else:
+			# '-P' or --console=pipe  could help us not having to do a bunch
+			# of os.write() calls, but instead use pipes (stdin, stdout and stderr) as usual.
 			self.session = SysCommandWorker([
 				'/usr/bin/systemd-nspawn',
-				'-D', self.instance.target,
+				'-D', str(self.instance.target),
 				'--timezone=off',
 				'-b',
 				'--no-pager',
 				'--machine', self.container_name
 			])
-			# '-P' or --console=pipe  could help us not having to do a bunch of os.write() calls, but instead use pipes (stdin, stdout and stderr) as usual.
 
-		if not self.ready:
+		if not self.ready and self.session:
 			while self.session.is_alive():
 				if b' login:' in self.session:
 					self.ready = True
@@ -91,25 +52,31 @@ class Boot:
 			log(f"The error above occurred in a temporary boot-up of the installation {self.instance}", level=logging.ERROR, fg="red")
 
 		shutdown = None
-		shutdown_exit_code = -1
+		shutdown_exit_code: Optional[int] = -1
 
 		try:
 			shutdown = SysCommand(f'systemd-run --machine={self.container_name} --pty shutdown now')
 		except SysCallError as error:
 			shutdown_exit_code = error.exit_code
 
-		while self.session.is_alive():
-			time.sleep(0.25)
+		if self.session:
+			while self.session.is_alive():
+				time.sleep(0.25)
 
-		if shutdown:
+		if shutdown and shutdown.exit_code:
 			shutdown_exit_code = shutdown.exit_code
 
-		if self.session.exit_code == 0 or shutdown_exit_code == 0:
+		if self.session and (self.session.exit_code == 0 or shutdown_exit_code == 0):
 			storage['active_boot'] = None
 		else:
-			raise SysCallError(f"Could not shut down temporary boot of {self.instance}: {self.session.exit_code}/{shutdown_exit_code}", exit_code=next(filter(bool, [self.session.exit_code, shutdown_exit_code])))
+			session_exit_code = self.session.exit_code if self.session else -1
+
+			raise SysCallError(
+				f"Could not shut down temporary boot of {self.instance}: {session_exit_code}/{shutdown_exit_code}",
+				exit_code=next(filter(bool, [session_exit_code, shutdown_exit_code]))
+			)
 
-	def __iter__(self) -> Iterator[str]:
+	def __iter__(self) -> Iterator[bytes]:
 		if self.session:
 			for value in self.session:
 				yield value
diff --git a/archinstall/lib/user_interaction/general_conf.py b/archinstall/lib/user_interaction/general_conf.py
index 7a6bb358..9722dc4d 100644
--- a/archinstall/lib/user_interaction/general_conf.py
+++ b/archinstall/lib/user_interaction/general_conf.py
@@ -3,7 +3,6 @@ from __future__ import annotations
 import logging
 import pathlib
 from typing import List, Any, Optional, Dict, TYPE_CHECKING
-from typing import Union
 
 from ..locale_helpers import list_keyboard_languages, list_timezones
 from ..menu import MenuSelectionType, Menu, TextInput
@@ -29,13 +28,18 @@ def ask_ntp(preset: bool = True) -> bool:
 	return False if choice.value == Menu.no() else True
 
 
-def ask_hostname(preset: str = None) -> str:
+def ask_hostname(preset: str = '') -> str:
 	while True:
-		hostname = TextInput(_('Desired hostname for the installation: '), preset).run().strip()
+		hostname = TextInput(
+			str(_('Desired hostname for the installation: ')),
+			preset
+		).run().strip()
+
 		if hostname:
 			return hostname
 
-def ask_for_a_timezone(preset: str = None) -> str:
+
+def ask_for_a_timezone(preset: Optional[str] = None) -> Optional[str]:
 	timezones = list_timezones()
 	default = 'UTC'
 
@@ -48,10 +52,12 @@ def ask_for_a_timezone(preset: str = None) -> str:
 
 	match choice.type_:
 		case MenuSelectionType.Skip: return preset
-		case MenuSelectionType.Selection: return choice.value
+		case MenuSelectionType.Selection: return choice.single_value
+
+	return None
 
 
-def ask_for_audio_selection(desktop: bool = True, preset: Union[str, None] = None) -> Union[str, None]:
+def ask_for_audio_selection(desktop: bool = True, preset: Optional[str] = None) -> Optional[str]:
 	no_audio = str(_('No audio server'))
 	choices = ['pipewire', 'pulseaudio'] if desktop else ['pipewire', 'pulseaudio', no_audio]
 	default = 'pipewire' if desktop else no_audio
@@ -60,10 +66,12 @@ def ask_for_audio_selection(desktop: bool = True, preset: Union[str, None] = Non
 
 	match choice.type_:
 		case MenuSelectionType.Skip: return preset
-		case MenuSelectionType.Selection: return choice.value
+		case MenuSelectionType.Selection: return choice.single_value
 
+	return None
 
-def select_language(preset_value: str = None) -> str:
+
+def select_language(preset: Optional[str] = None) -> Optional[str]:
 	"""
 	Asks the user to select a language
 	Usually this is combined with :ref:`archinstall.list_keyboard_languages`.
@@ -75,17 +83,18 @@ def select_language(preset_value: str = None) -> str:
 	# sort alphabetically and then by length
 	sorted_kb_lang = sorted(sorted(list(kb_lang)), key=len)
 
-	selected_lang = Menu(
+	choice = Menu(
 		_('Select keyboard layout'),
 		sorted_kb_lang,
-		preset_values=preset_value,
+		preset_values=preset,
 		sort=False
 	).run()
 
-	if selected_lang.value is None:
-		return preset_value
+	match choice.type_:
+		case MenuSelectionType.Skip: return preset
+		case MenuSelectionType.Selection: return choice.single_value
 
-	return selected_lang.value
+	return None
 
 
 def select_mirror_regions(preset_values: Dict[str, Any] = {}) -> Dict[str, Any]:
@@ -100,8 +109,10 @@ def select_mirror_regions(preset_values: Dict[str, Any] = {}) -> Dict[str, Any]:
 		preselected = None
 	else:
 		preselected = list(preset_values.keys())
+
 	mirrors = list_mirrors()
-	selected_mirror = Menu(
+
+	choice = Menu(
 		_('Select one of the regions to download packages from'),
 		list(mirrors.keys()),
 		preset_values=preselected,
@@ -109,13 +120,18 @@ def select_mirror_regions(preset_values: Dict[str, Any] = {}) -> Dict[str, Any]:
 		allow_reset=True
 	).run()
 
-	match selected_mirror.type_:
-		case MenuSelectionType.Reset: return {}
-		case MenuSelectionType.Skip: return preset_values
-		case _: return {selected: mirrors[selected] for selected in selected_mirror.value}
+	match choice.type_:
+		case MenuSelectionType.Reset:
+			return {}
+		case MenuSelectionType.Skip:
+			return preset_values
+		case MenuSelectionType.Selection:
+			return {selected: mirrors[selected] for selected in choice.multi_value}
+
+	return {}
 
 
-def select_archinstall_language(languages: List[Language], preset_value: Language) -> Language:
+def select_archinstall_language(languages: List[Language], preset: Language) -> Language:
 	# these are the displayed language names which can either be
 	# the english name of a language or, if present, the
 	# name of the language in its own language
@@ -128,15 +144,15 @@ def select_archinstall_language(languages: List[Language], preset_value: Languag
 	choice = Menu(
 		title,
 		list(options.keys()),
-		default_option=preset_value.display_name,
+		default_option=preset.display_name,
 		preview_size=0.5
 	).run()
 
 	match choice.type_:
-		case MenuSelectionType.Skip:
-			return preset_value
-		case MenuSelectionType.Selection:
-			return options[choice.value]
+		case MenuSelectionType.Skip: return preset
+		case MenuSelectionType.Selection: return options[choice.single_value]
+
+	raise ValueError('Language selection not handled')
 
 
 def ask_additional_packages_to_install(pre_set_packages: List[str] = []) -> List[str]:
@@ -223,4 +239,6 @@ def select_additional_repositories(preset: List[str]) -> List[str]:
 	match choice.type_:
 		case MenuSelectionType.Skip: return preset
 		case MenuSelectionType.Reset: return []
-		case MenuSelectionType.Selection: return choice.value
+		case MenuSelectionType.Selection: return choice.single_value
+
+	return []
diff --git a/archinstall/lib/user_interaction/locale_conf.py b/archinstall/lib/user_interaction/locale_conf.py
index 88aec64e..cdc3423a 100644
--- a/archinstall/lib/user_interaction/locale_conf.py
+++ b/archinstall/lib/user_interaction/locale_conf.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any, TYPE_CHECKING
+from typing import Any, TYPE_CHECKING, Optional
 
 from ..locale_helpers import list_locales
 from ..menu import Menu, MenuSelectionType
@@ -9,33 +9,37 @@ if TYPE_CHECKING:
 	_: Any
 
 
-def select_locale_lang(preset: str = None) -> str:
+def select_locale_lang(preset: Optional[str] = None) -> Optional[str]:
 	locales = list_locales()
 	locale_lang = set([locale.split()[0] for locale in locales])
 
-	selected_locale = Menu(
+	choice = Menu(
 		_('Choose which locale language to use'),
 		list(locale_lang),
 		sort=True,
 		preset_values=preset
 	).run()
 
-	match selected_locale.type_:
-		case MenuSelectionType.Selection: return selected_locale.value
+	match choice.type_:
+		case MenuSelectionType.Selection: return choice.single_value
 		case MenuSelectionType.Skip: return preset
 
+	return None
 
-def select_locale_enc(preset: str = None) -> str:
+
+def select_locale_enc(preset: Optional[str] = None) -> Optional[str]:
 	locales = list_locales()
 	locale_enc = set([locale.split()[1] for locale in locales])
 
-	selected_locale = Menu(
+	choice = Menu(
 		_('Choose which locale encoding to use'),
 		list(locale_enc),
 		sort=True,
 		preset_values=preset
 	).run()
 
-	match selected_locale.type_:
-		case MenuSelectionType.Selection: return selected_locale.value
+	match choice.type_:
+		case MenuSelectionType.Selection: return choice.single_value
 		case MenuSelectionType.Skip: return preset
+
+	return None
diff --git a/archinstall/scripts/guided.py b/archinstall/scripts/guided.py
index d9c5837c..48d141b7 100644
--- a/archinstall/scripts/guided.py
+++ b/archinstall/scripts/guided.py
@@ -223,7 +223,7 @@ def perform_installation(mountpoint: Path):
 		# If the user provided a list of services to be enabled, pass the list to the enable_service function.
 		# Note that while it's called enable_service, it can actually take a list of services and iterate it.
 		if archinstall.arguments.get('services', None):
-			installation.enable_service(*archinstall.arguments['services'])
+			installation.enable_service(archinstall.arguments.get('services', []))
 
 		# If the user provided custom commands to be run post-installation, execute them now.
 		if archinstall.arguments.get('custom-commands', None):
diff --git a/archinstall/scripts/swiss.py b/archinstall/scripts/swiss.py
index e2ee6fcb..34e4c022 100644
--- a/archinstall/scripts/swiss.py
+++ b/archinstall/scripts/swiss.py
@@ -239,7 +239,7 @@ def perform_installation(mountpoint: Path, exec_mode: ExecutionMode):
 				handler.config_installer(installation)
 
 			if archinstall.arguments.get('packages', None) and archinstall.arguments.get('packages', None)[0] != '':
-				installation.add_additional_packages(archinstall.arguments.get('packages', None))
+				installation.add_additional_packages(archinstall.arguments.get('packages', []))
 
 			if users := archinstall.arguments.get('!users', None):
 				installation.create_users(users)
@@ -278,7 +278,7 @@ def perform_installation(mountpoint: Path, exec_mode: ExecutionMode):
 			# If the user provided a list of services to be enabled, pass the list to the enable_service function.
 			# Note that while it's called enable_service, it can actually take a list of services and iterate it.
 			if archinstall.arguments.get('services', None):
-				installation.enable_service(*archinstall.arguments['services'])
+				installation.enable_service(archinstall.arguments.get('services', []))
 
 			# If the user provided custom commands to be run post-installation, execute them now.
 			if archinstall.arguments.get('custom-commands', None):