25 files changed, 993 insertions, 277 deletions

diff --git a/lib/python/qmk/cli/__init__.py b/lib/python/qmk/cli/__init__.py
index de71a5d1e..b22f1c0d2 100644
--- a/lib/python/qmk/cli/__init__.py
+++ b/lib/python/qmk/cli/__init__.py
@@ -40,7 +40,10 @@ subcommands = [
     'qmk.cli.doctor',
     'qmk.cli.fileformat',
     'qmk.cli.flash',
+    'qmk.cli.format.c',
     'qmk.cli.format.json',
+    'qmk.cli.format.python',
+    'qmk.cli.format.text',
     'qmk.cli.generate.api',
     'qmk.cli.generate.config_h',
     'qmk.cli.generate.dfu_header',
@@ -50,6 +53,7 @@ subcommands = [
     'qmk.cli.generate.layouts',
     'qmk.cli.generate.rgb_breathe_table',
     'qmk.cli.generate.rules_mk',
+    'qmk.cli.generate.version_h',
     'qmk.cli.hello',
     'qmk.cli.info',
     'qmk.cli.json2c',
diff --git a/lib/python/qmk/cli/cformat.py b/lib/python/qmk/cli/cformat.py
index efeb45967..9d0ecaeba 100644..100755
--- a/lib/python/qmk/cli/cformat.py
+++ b/lib/python/qmk/cli/cformat.py
@@ -1,137 +1,28 @@
-"""Format C code according to QMK's style.
+"""Point people to the new command name.
 """
-from os import path
-from shutil import which
-from subprocess import CalledProcessError, DEVNULL, Popen, PIPE
+import sys
+from pathlib import Path
 
-from argcomplete.completers import FilesCompleter
 from milc import cli
 
-from qmk.path import normpath
-from qmk.c_parse import c_source_files
-
-c_file_suffixes = ('c', 'h', 'cpp')
-core_dirs = ('drivers', 'quantum', 'tests', 'tmk_core', 'platforms')
-ignored = ('tmk_core/protocol/usb_hid', 'quantum/template', 'platforms/chibios')
-
-
-def find_clang_format():
-    """Returns the path to clang-format.
-    """
-    for clang_version in range(20, 6, -1):
-        binary = f'clang-format-{clang_version}'
-
-        if which(binary):
-            return binary
-
-    return 'clang-format'
-
-
-def find_diffs(files):
-    """Run clang-format and diff it against a file.
-    """
-    found_diffs = False
-
-    for file in files:
-        cli.log.debug('Checking for changes in %s', file)
-        clang_format = Popen([find_clang_format(), file], stdout=PIPE, stderr=PIPE, universal_newlines=True)
-        diff = cli.run(['diff', '-u', f'--label=a/{file}', f'--label=b/{file}', str(file), '-'], stdin=clang_format.stdout, capture_output=True)
-
-        if diff.returncode != 0:
-            print(diff.stdout)
-            found_diffs = True
-
-    return found_diffs
-
-
-def cformat_run(files):
-    """Spawn clang-format subprocess with proper arguments
-    """
-    # Determine which version of clang-format to use
-    clang_format = [find_clang_format(), '-i']
-
-    try:
-        cli.run([*clang_format, *map(str, files)], check=True, capture_output=False, stdin=DEVNULL)
-        cli.log.info('Successfully formatted the C code.')
-        return True
-
-    except CalledProcessError as e:
-        cli.log.error('Error formatting C code!')
-        cli.log.debug('%s exited with returncode %s', e.cmd, e.returncode)
-        cli.log.debug('STDOUT:')
-        cli.log.debug(e.stdout)
-        cli.log.debug('STDERR:')
-        cli.log.debug(e.stderr)
-        return False
-
-
-def filter_files(files, core_only=False):
-    """Yield only files to be formatted and skip the rest
-    """
-    if core_only:
-        # Filter non-core files
-        for index, file in enumerate(files):
-            # The following statement checks each file to see if the file path is
-            # - in the core directories
-            # - not in the ignored directories
-            if not any(i in str(file) for i in core_dirs) or any(i in str(file) for i in ignored):
-                files[index] = None
-                cli.log.debug("Skipping non-core file %s, as '--core-only' is used.", file)
-
-    for file in files:
-        if file and file.name.split('.')[-1] in c_file_suffixes:
-            yield file
-        else:
-            cli.log.debug('Skipping file %s', file)
-
 
 @cli.argument('-n', '--dry-run', arg_only=True, action='store_true', help="Flag only, don't automatically format.")
 @cli.argument('-b', '--base-branch', default='origin/master', help='Branch to compare to diffs to.')
 @cli.argument('-a', '--all-files', arg_only=True, action='store_true', help='Format all core files.')
 @cli.argument('--core-only', arg_only=True, action='store_true', help='Format core files only.')
-@cli.argument('files', nargs='*', arg_only=True, type=normpath, completer=FilesCompleter('.c'), help='Filename(s) to format.')
-@cli.subcommand("Format C code according to QMK's style.", hidden=False if cli.config.user.developer else True)
+@cli.argument('files', nargs='*', arg_only=True, help='Filename(s) to format.')
+@cli.subcommand('Pointer to the new command name: qmk format-c.', hidden=True)
 def cformat(cli):
-    """Format C code according to QMK's style.
+    """Pointer to the new command name: qmk format-c.
     """
-    # Find the list of files to format
-    if cli.args.files:
-        files = list(filter_files(cli.args.files, cli.args.core_only))
-
-        if not files:
-            cli.log.error('No C files in filelist: %s', ', '.join(map(str, cli.args.files)))
-            exit(0)
-
-        if cli.args.all_files:
-            cli.log.warning('Filenames passed with -a, only formatting: %s', ','.join(map(str, files)))
-
-    elif cli.args.all_files:
-        all_files = c_source_files(core_dirs)
-        files = list(filter_files(all_files, True))
-
-    else:
-        git_diff_cmd = ['git', 'diff', '--name-only', cli.args.base_branch, *core_dirs]
-        git_diff = cli.run(git_diff_cmd, stdin=DEVNULL)
-
-        if git_diff.returncode != 0:
-            cli.log.error("Error running %s", git_diff_cmd)
-            print(git_diff.stderr)
-            return git_diff.returncode
-
-        files = []
-
-        for file in git_diff.stdout.strip().split('\n'):
-            if not any([file.startswith(ignore) for ignore in ignored]):
-                if path.exists(file) and file.split('.')[-1] in c_file_suffixes:
-                    files.append(file)
+    cli.log.warning('"qmk cformat" has been renamed to "qmk format-c". Please use the new command in the future.')
+    argv = [sys.executable, *sys.argv]
+    argv[argv.index('cformat')] = 'format-c'
+    script_path = Path(argv[1])
+    script_path_exe = Path(f'{argv[1]}.exe')
 
-    # Sanity check
-    if not files:
-        cli.log.error('No changed files detected. Use "qmk cformat -a" to format all core files')
-        return False
+    if not script_path.exists() and script_path_exe.exists():
+        # For reasons I don't understand ".exe" is stripped from the script name on windows.
+        argv[1] = str(script_path_exe)
 
-    # Run clang-format on the files we've found
-    if cli.args.dry_run:
-        return not find_diffs(files)
-    else:
-        return cformat_run(files)
+    return cli.run(argv, capture_output=False).returncode
diff --git a/lib/python/qmk/cli/compile.py b/lib/python/qmk/cli/compile.py
index 7a45e7721..acbd77864 100755
--- a/lib/python/qmk/cli/compile.py
+++ b/lib/python/qmk/cli/compile.py
@@ -18,7 +18,7 @@ from qmk.keymap import keymap_completer
 @cli.argument('-kb', '--keyboard', type=keyboard_folder, completer=keyboard_completer, help='The keyboard to build a firmware for. Ignored when a configurator export is supplied.')
 @cli.argument('-km', '--keymap', completer=keymap_completer, help='The keymap to build a firmware for. Ignored when a configurator export is supplied.')
 @cli.argument('-n', '--dry-run', arg_only=True, action='store_true', help="Don't actually build, just show the make command to be run.")
-@cli.argument('-j', '--parallel', type=int, default=1, help="Set the number of parallel make jobs to run.")
+@cli.argument('-j', '--parallel', type=int, default=1, help="Set the number of parallel make jobs; 0 means unlimited.")
 @cli.argument('-e', '--env', arg_only=True, action='append', default=[], help="Set a variable to be passed to make. May be passed multiple times.")
 @cli.argument('-c', '--clean', arg_only=True, action='store_true', help="Remove object files before compiling.")
 @cli.subcommand('Compile a QMK Firmware.')
diff --git a/lib/python/qmk/cli/console.py b/lib/python/qmk/cli/console.py
index 45ff0c8be..3c508160e 100644
--- a/lib/python/qmk/cli/console.py
+++ b/lib/python/qmk/cli/console.py
@@ -48,10 +48,11 @@ KNOWN_BOOTLOADERS = {
     ('239A', '000C'): 'caterina: Adafruit Feather 32U4',
     ('239A', '000D'): 'caterina: Adafruit ItsyBitsy 32U4 3v',
     ('239A', '000E'): 'caterina: Adafruit ItsyBitsy 32U4 5v',
-    ('239A', '000E'): 'caterina: Adafruit ItsyBitsy 32U4 5v',
     ('2A03', '0036'): 'caterina: Arduino Leonardo',
     ('2A03', '0037'): 'caterina: Arduino Micro',
-    ('314B', '0106'): 'apm32-dfu: APM32 DFU ISP Mode'
+    ('314B', '0106'): 'apm32-dfu: APM32 DFU ISP Mode',
+    ('03EB', '2067'): 'qmk-hid: HID Bootloader',
+    ('03EB', '2045'): 'lufa-ms: LUFA Mass Storage Bootloader'
 }
 
 
diff --git a/lib/python/qmk/cli/doctor/__init__.py b/lib/python/qmk/cli/doctor/__init__.py
new file mode 100755
index 000000000..272e04202
--- /dev/null
+++ b/lib/python/qmk/cli/doctor/__init__.py
@@ -0,0 +1,5 @@
+"""QMK Doctor
+
+Check out the user's QMK environment and make sure it's ready to compile.
+"""
+from .main import doctor
diff --git a/lib/python/qmk/cli/doctor/check.py b/lib/python/qmk/cli/doctor/check.py
new file mode 100644
index 000000000..0807f4151
--- /dev/null
+++ b/lib/python/qmk/cli/doctor/check.py
@@ -0,0 +1,164 @@
+"""Check for specific programs.
+"""
+from enum import Enum
+import re
+import shutil
+from subprocess import DEVNULL
+
+from milc import cli
+from qmk import submodules
+from qmk.constants import QMK_FIRMWARE
+
+
+class CheckStatus(Enum):
+    OK = 1
+    WARNING = 2
+    ERROR = 3
+
+
+ESSENTIAL_BINARIES = {
+    'dfu-programmer': {},
+    'avrdude': {},
+    'dfu-util': {},
+    'avr-gcc': {
+        'version_arg': '-dumpversion'
+    },
+    'arm-none-eabi-gcc': {
+        'version_arg': '-dumpversion'
+    },
+    'bin/qmk': {},
+}
+
+
+def _parse_gcc_version(version):
+    m = re.match(r"(\d+)(?:\.(\d+))?(?:\.(\d+))?", version)
+
+    return {
+        'major': int(m.group(1)),
+        'minor': int(m.group(2)) if m.group(2) else 0,
+        'patch': int(m.group(3)) if m.group(3) else 0,
+    }
+
+
+def _check_arm_gcc_version():
+    """Returns True if the arm-none-eabi-gcc version is not known to cause problems.
+    """
+    if 'output' in ESSENTIAL_BINARIES['arm-none-eabi-gcc']:
+        version_number = ESSENTIAL_BINARIES['arm-none-eabi-gcc']['output'].strip()
+        cli.log.info('Found arm-none-eabi-gcc version %s', version_number)
+
+    return CheckStatus.OK  # Right now all known arm versions are ok
+
+
+def _check_avr_gcc_version():
+    """Returns True if the avr-gcc version is not known to cause problems.
+    """
+    rc = CheckStatus.ERROR
+    if 'output' in ESSENTIAL_BINARIES['avr-gcc']:
+        version_number = ESSENTIAL_BINARIES['avr-gcc']['output'].strip()
+
+        cli.log.info('Found avr-gcc version %s', version_number)
+        rc = CheckStatus.OK
+
+        parsed_version = _parse_gcc_version(version_number)
+        if parsed_version['major'] > 8:
+            cli.log.warning('{fg_yellow}We do not recommend avr-gcc newer than 8. Downgrading to 8.x is recommended.')
+            rc = CheckStatus.WARNING
+
+    return rc
+
+
+def _check_avrdude_version():
+    if 'output' in ESSENTIAL_BINARIES['avrdude']:
+        last_line = ESSENTIAL_BINARIES['avrdude']['output'].split('\n')[-2]
+        version_number = last_line.split()[2][:-1]
+        cli.log.info('Found avrdude version %s', version_number)
+
+    return CheckStatus.OK
+
+
+def _check_dfu_util_version():
+    if 'output' in ESSENTIAL_BINARIES['dfu-util']:
+        first_line = ESSENTIAL_BINARIES['dfu-util']['output'].split('\n')[0]
+        version_number = first_line.split()[1]
+        cli.log.info('Found dfu-util version %s', version_number)
+
+    return CheckStatus.OK
+
+
+def _check_dfu_programmer_version():
+    if 'output' in ESSENTIAL_BINARIES['dfu-programmer']:
+        first_line = ESSENTIAL_BINARIES['dfu-programmer']['output'].split('\n')[0]
+        version_number = first_line.split()[1]
+        cli.log.info('Found dfu-programmer version %s', version_number)
+
+    return CheckStatus.OK
+
+
+def check_binaries():
+    """Iterates through ESSENTIAL_BINARIES and tests them.
+    """
+    ok = True
+
+    for binary in sorted(ESSENTIAL_BINARIES):
+        if not is_executable(binary):
+            ok = False
+
+    return ok
+
+
+def check_binary_versions():
+    """Check the versions of ESSENTIAL_BINARIES
+    """
+    versions = []
+    for check in (_check_arm_gcc_version, _check_avr_gcc_version, _check_avrdude_version, _check_dfu_util_version, _check_dfu_programmer_version):
+        versions.append(check())
+    return versions
+
+
+def check_submodules():
+    """Iterates through all submodules to make sure they're cloned and up to date.
+    """
+    for submodule in submodules.status().values():
+        if submodule['status'] is None:
+            cli.log.error('Submodule %s has not yet been cloned!', submodule['name'])
+            return CheckStatus.ERROR
+        elif not submodule['status']:
+            cli.log.warning('Submodule %s is not up to date!', submodule['name'])
+            return CheckStatus.WARNING
+
+    return CheckStatus.OK
+
+
+def is_executable(command):
+    """Returns True if command exists and can be executed.
+    """
+    # Make sure the command is in the path.
+    res = shutil.which(command)
+    if res is None:
+        cli.log.error("{fg_red}Can't find %s in your path.", command)
+        return False
+
+    # Make sure the command can be executed
+    version_arg = ESSENTIAL_BINARIES[command].get('version_arg', '--version')
+    check = cli.run([command, version_arg], combined_output=True, stdin=DEVNULL, timeout=5)
+
+    ESSENTIAL_BINARIES[command]['output'] = check.stdout
+
+    if check.returncode in [0, 1]:  # Older versions of dfu-programmer exit 1
+        cli.log.debug('Found {fg_cyan}%s', command)
+        return True
+
+    cli.log.error("{fg_red}Can't run `%s %s`", command, version_arg)
+    return False
+
+
+def check_git_repo():
+    """Checks that the .git directory exists inside QMK_HOME.
+
+    This is a decent enough indicator that the qmk_firmware directory is a
+    proper Git repository, rather than a .zip download from GitHub.
+    """
+    dot_git = QMK_FIRMWARE / '.git'
+
+    return CheckStatus.OK if dot_git.exists() else CheckStatus.WARNING
diff --git a/lib/python/qmk/cli/doctor/linux.py b/lib/python/qmk/cli/doctor/linux.py
new file mode 100644
index 000000000..6ce00f6ef
--- /dev/null
+++ b/lib/python/qmk/cli/doctor/linux.py
@@ -0,0 +1,172 @@
+"""OS-specific functions for: Linux
+"""
+import platform
+import shutil
+from pathlib import Path
+
+from milc import cli
+
+from qmk.constants import QMK_FIRMWARE
+from .check import CheckStatus
+
+
+def _udev_rule(vid, pid=None, *args):
+    """ Helper function that return udev rules
+    """
+    rule = ""
+    if pid:
+        rule = 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", ATTRS{idProduct}=="%s", TAG+="uaccess"' % (
+            vid,
+            pid,
+        )
+    else:
+        rule = 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", TAG+="uaccess"' % vid
+    if args:
+        rule = ', '.join([rule, *args])
+    return rule
+
+
+def _deprecated_udev_rule(vid, pid=None):
+    """ Helper function that return udev rules
+
+    Note: these are no longer the recommended rules, this is just used to check for them
+    """
+    if pid:
+        return 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", ATTRS{idProduct}=="%s", MODE:="0666"' % (vid, pid)
+    else:
+        return 'SUBSYSTEMS=="usb", ATTRS{idVendor}=="%s", MODE:="0666"' % vid
+
+
+def check_udev_rules():
+    """Make sure the udev rules look good.
+    """
+    rc = CheckStatus.OK
+    udev_dirs = [
+        Path("/usr/lib/udev/rules.d/"),
+        Path("/usr/local/lib/udev/rules.d/"),
+        Path("/run/udev/rules.d/"),
+        Path("/etc/udev/rules.d/"),
+    ]
+    desired_rules = {
+        'atmel-dfu': {
+            _udev_rule("03eb", "2fef"),  # ATmega16U2
+            _udev_rule("03eb", "2ff0"),  # ATmega32U2
+            _udev_rule("03eb", "2ff3"),  # ATmega16U4
+            _udev_rule("03eb", "2ff4"),  # ATmega32U4
+            _udev_rule("03eb", "2ff9"),  # AT90USB64
+            _udev_rule("03eb", "2ffa"),  # AT90USB162
+            _udev_rule("03eb", "2ffb")  # AT90USB128
+        },
+        'kiibohd': {_udev_rule("1c11", "b007")},
+        'stm32': {
+            _udev_rule("1eaf", "0003"),  # STM32duino
+            _udev_rule("0483", "df11")  # STM32 DFU
+        },
+        'bootloadhid': {_udev_rule("16c0", "05df")},
+        'usbasploader': {_udev_rule("16c0", "05dc")},
+        'massdrop': {_udev_rule("03eb", "6124", 'ENV{ID_MM_DEVICE_IGNORE}="1"')},
+        'caterina': {
+            # Spark Fun Electronics
+            _udev_rule("1b4f", "9203", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # Pro Micro 3V3/8MHz
+            _udev_rule("1b4f", "9205", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # Pro Micro 5V/16MHz
+            _udev_rule("1b4f", "9207", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # LilyPad 3V3/8MHz (and some Pro Micro clones)
+            # Pololu Electronics
+            _udev_rule("1ffb", "0101", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # A-Star 32U4
+            # Arduino SA
+            _udev_rule("2341", "0036", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # Leonardo
+            _udev_rule("2341", "0037", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # Micro
+            # Adafruit Industries LLC
+            _udev_rule("239a", "000c", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # Feather 32U4
+            _udev_rule("239a", "000d", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # ItsyBitsy 32U4 3V3/8MHz
+            _udev_rule("239a", "000e", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # ItsyBitsy 32U4 5V/16MHz
+            # dog hunter AG
+            _udev_rule("2a03", "0036", 'ENV{ID_MM_DEVICE_IGNORE}="1"'),  # Leonardo
+            _udev_rule("2a03", "0037", 'ENV{ID_MM_DEVICE_IGNORE}="1"')  # Micro
+        },
+        'hid-bootloader': {
+            _udev_rule("03eb", "2067"),  # QMK HID
+            _udev_rule("16c0", "0478")  # PJRC halfkay
+        }
+    }
+
+    # These rules are no longer recommended, only use them to check for their presence.
+    deprecated_rules = {
+        'atmel-dfu': {_deprecated_udev_rule("03eb", "2ff4"), _deprecated_udev_rule("03eb", "2ffb"), _deprecated_udev_rule("03eb", "2ff0")},
+        'kiibohd': {_deprecated_udev_rule("1c11")},
+        'stm32': {_deprecated_udev_rule("1eaf", "0003"), _deprecated_udev_rule("0483", "df11")},
+        'bootloadhid': {_deprecated_udev_rule("16c0", "05df")},
+        'caterina': {'ATTRS{idVendor}=="2a03", ENV{ID_MM_DEVICE_IGNORE}="1"', 'ATTRS{idVendor}=="2341", ENV{ID_MM_DEVICE_IGNORE}="1"'},
+        'tmk': {_deprecated_udev_rule("feed")}
+    }
+
+    if any(udev_dir.exists() for udev_dir in udev_dirs):
+        udev_rules = [rule_file for udev_dir in udev_dirs for rule_file in udev_dir.glob('*.rules')]
+        current_rules = set()
+
+        # Collect all rules from the config files
+        for rule_file in udev_rules:
+            for line in rule_file.read_text(encoding='utf-8').split('\n'):
+                line = line.strip()
+                if not line.startswith("#") and len(line):
+                    current_rules.add(line)
+
+        # Check if the desired rules are among the currently present rules
+        for bootloader, rules in desired_rules.items():
+            if not rules.issubset(current_rules):
+                deprecated_rule = deprecated_rules.get(bootloader)
+                if deprecated_rule and deprecated_rule.issubset(current_rules):
+                    cli.log.warning("{fg_yellow}Found old, deprecated udev rules for '%s' boards. The new rules on https://docs.qmk.fm/#/faq_build?id=linux-udev-rules offer better security with the same functionality.", bootloader)
+                else:
+                    # For caterina, check if ModemManager is running
+                    if bootloader == "caterina":
+                        if check_modem_manager():
+                            rc = CheckStatus.WARNING
+                            cli.log.warning("{fg_yellow}Detected ModemManager without the necessary udev rules. Please either disable it or set the appropriate udev rules if you are using a Pro Micro.")
+                    rc = CheckStatus.WARNING
+                    cli.log.warning("{fg_yellow}Missing or outdated udev rules for '%s' boards. Run 'sudo cp %s/util/udev/50-qmk.rules /etc/udev/rules.d/'.", bootloader, QMK_FIRMWARE)
+
+    else:
+        cli.log.warning("{fg_yellow}Can't find udev rules, skipping udev rule checking...")
+        cli.log.debug("Checked directories: %s", ', '.join(str(udev_dir) for udev_dir in udev_dirs))
+
+    return rc
+
+
+def check_systemd():
+    """Check if it's a systemd system
+    """
+    return bool(shutil.which("systemctl"))
+
+
+def check_modem_manager():
+    """Returns True if ModemManager is running.
+
+    """
+    if check_systemd():
+        mm_check = cli.run(["systemctl", "--quiet", "is-active", "ModemManager.service"], timeout=10)
+        if mm_check.returncode == 0:
+            return True
+    else:
+        """(TODO): Add check for non-systemd systems
+        """
+    return False
+
+
+def os_test_linux():
+    """Run the Linux specific tests.
+    """
+    # Don't bother with udev on WSL, for now
+    if 'microsoft' in platform.uname().release.lower():
+        cli.log.info("Detected {fg_cyan}Linux (WSL){fg_reset}.")
+
+        # https://github.com/microsoft/WSL/issues/4197
+        if QMK_FIRMWARE.as_posix().startswith("/mnt"):
+            cli.log.warning("I/O performance on /mnt may be extremely slow.")
+            return CheckStatus.WARNING
+
+        return CheckStatus.OK
+    else:
+        cli.log.info("Detected {fg_cyan}Linux{fg_reset}.")
+        from .linux import check_udev_rules
+
+        return check_udev_rules()
diff --git a/lib/python/qmk/cli/doctor/macos.py b/lib/python/qmk/cli/doctor/macos.py
new file mode 100644
index 000000000..00fb27285
--- /dev/null
+++ b/lib/python/qmk/cli/doctor/macos.py
@@ -0,0 +1,13 @@
+import platform
+
+from milc import cli
+
+from .check import CheckStatus
+
+
+def os_test_macos():
+    """Run the Mac specific tests.
+    """
+    cli.log.info("Detected {fg_cyan}macOS %s{fg_reset}.", platform.mac_ver()[0])
+
+    return CheckStatus.OK
diff --git a/lib/python/qmk/cli/doctor.py b/lib/python/qmk/cli/doctor/main.py
index 327bc9cb3..6a31ccdfd 100755
--- a/lib/python/qmk/cli/doctor.py
+++ b/lib/python/qmk/cli/doctor/main.py
@@ -7,9 +7,11 @@ from subprocess import DEVNULL
 
 from milc import cli
 from milc.questions import yesno
+
 from qmk import submodules
-from qmk.constants import QMK_FIRMWARE
-from qmk.os_helpers import CheckStatus, check_binaries, check_binary_versions, check_submodules, check_git_repo
+from qmk.constants import QMK_FIRMWARE, QMK_FIRMWARE_UPSTREAM
+from .check import CheckStatus, check_binaries, check_binary_versions, check_submodules
+from qmk.commands import git_check_repo, git_get_branch, git_is_dirty, git_get_remotes, git_check_deviation, in_virtualenv
 
 
 def os_tests():
@@ -18,51 +20,48 @@ def os_tests():
     platform_id = platform.platform().lower()
 
     if 'darwin' in platform_id or 'macos' in platform_id:
+        from .macos import os_test_macos
         return os_test_macos()
     elif 'linux' in platform_id:
+        from .linux import os_test_linux
         return os_test_linux()
     elif 'windows' in platform_id:
+        from .windows import os_test_windows
         return os_test_windows()
     else:
         cli.log.warning('Unsupported OS detected: %s', platform_id)
         return CheckStatus.WARNING
 
 
-def os_test_linux():
-    """Run the Linux specific tests.
+def git_tests():
+    """Run Git-related checks
     """
-    # Don't bother with udev on WSL, for now
-    if 'microsoft' in platform.uname().release.lower():
-        cli.log.info("Detected {fg_cyan}Linux (WSL){fg_reset}.")
-
-        # https://github.com/microsoft/WSL/issues/4197
-        if QMK_FIRMWARE.as_posix().startswith("/mnt"):
-            cli.log.warning("I/O performance on /mnt may be extremely slow.")
-            return CheckStatus.WARNING
+    status = CheckStatus.OK
 
-        return CheckStatus.OK
+    # Make sure our QMK home is a Git repo
+    git_ok = git_check_repo()
+    if not git_ok:
+        cli.log.warning("{fg_yellow}QMK home does not appear to be a Git repository! (no .git folder)")
+        status = CheckStatus.WARNING
     else:
-        cli.log.info("Detected {fg_cyan}Linux{fg_reset}.")
-        from qmk.os_helpers.linux import check_udev_rules
-
-        return check_udev_rules()
-
-
-def os_test_macos():
-    """Run the Mac specific tests.
-    """
-    cli.log.info("Detected {fg_cyan}macOS %s{fg_reset}.", platform.mac_ver()[0])
-
-    return CheckStatus.OK
-
-
-def os_test_windows():
-    """Run the Windows specific tests.
-    """
-    win32_ver = platform.win32_ver()
-    cli.log.info("Detected {fg_cyan}Windows %s (%s){fg_reset}.", win32_ver[0], win32_ver[1])
-
-    return CheckStatus.OK
+        git_branch = git_get_branch()
+        if git_branch:
+            cli.log.info('Git branch: %s', git_branch)
+            git_dirty = git_is_dirty()
+            if git_dirty:
+                cli.log.warning('{fg_yellow}Git has unstashed/uncommitted changes.')
+                status = CheckStatus.WARNING
+            git_remotes = git_get_remotes()
+            if 'upstream' not in git_remotes.keys() or QMK_FIRMWARE_UPSTREAM not in git_remotes['upstream'].get('url', ''):
+                cli.log.warning('{fg_yellow}The official repository does not seem to be configured as git remote "upstream".')
+                status = CheckStatus.WARNING
+            else:
+                git_deviation = git_check_deviation(git_branch)
+                if git_branch in ['master', 'develop'] and git_deviation:
+                    cli.log.warning('{fg_yellow}The local "%s" branch contains commits not found in the upstream branch.', git_branch)
+                    status = CheckStatus.WARNING
+
+    return status
 
 
 @cli.argument('-y', '--yes', action='store_true', arg_only=True, help='Answer yes to all questions.')
@@ -82,12 +81,11 @@ def doctor(cli):
 
     status = os_tests()
 
-    # Make sure our QMK home is a Git repo
-    git_ok = check_git_repo()
+    status = git_tests()
 
-    if git_ok == CheckStatus.WARNING:
-        cli.log.warning("QMK home does not appear to be a Git repository! (no .git folder)")
-        status = CheckStatus.WARNING
+    venv = in_virtualenv()
+    if venv:
+        cli.log.info('CLI installed in virtualenv.')
 
     # Make sure the basic CLI tools we need are available and can be executed.
     bin_ok = check_binaries()
diff --git a/lib/python/qmk/cli/doctor/windows.py b/lib/python/qmk/cli/doctor/windows.py
new file mode 100644
index 000000000..381ab36fd
--- /dev/null
+++ b/lib/python/qmk/cli/doctor/windows.py
@@ -0,0 +1,14 @@
+import platform
+
+from milc import cli
+
+from .check import CheckStatus
+
+
+def os_test_windows():
+    """Run the Windows specific tests.
+    """
+    win32_ver = platform.win32_ver()
+    cli.log.info("Detected {fg_cyan}Windows %s (%s){fg_reset}.", win32_ver[0], win32_ver[1])
+
+    return CheckStatus.OK
diff --git a/lib/python/qmk/cli/fileformat.py b/lib/python/qmk/cli/fileformat.py
index 112d8d59d..cee4ba1ac 100644..100755
--- a/lib/python/qmk/cli/fileformat.py
+++ b/lib/python/qmk/cli/fileformat.py
@@ -1,13 +1,23 @@
-"""Format files according to QMK's style.
+"""Point people to the new command name.
 """
-from milc import cli
+import sys
+from pathlib import Path
 
-import subprocess
+from milc import cli
 
 
-@cli.subcommand("Format files according to QMK's style.", hidden=True)
+@cli.subcommand('Pointer to the new command name: qmk format-text.', hidden=True)
 def fileformat(cli):
-    """Run several general formatting commands.
+    """Pointer to the new command name: qmk format-text.
     """
-    dos2unix = subprocess.run(['bash', '-c', 'git ls-files -z | xargs -0 dos2unix'], stdout=subprocess.DEVNULL)
-    return dos2unix.returncode
+    cli.log.warning('"qmk fileformat" has been renamed to "qmk format-text". Please use the new command in the future.')
+    argv = [sys.executable, *sys.argv]
+    argv[argv.index('fileformat')] = 'format-text'
+    script_path = Path(argv[1])
+    script_path_exe = Path(f'{argv[1]}.exe')
+
+    if not script_path.exists() and script_path_exe.exists():
+        # For reasons I don't understand ".exe" is stripped from the script name on windows.
+        argv[1] = str(script_path_exe)
+
+    return cli.run(argv, capture_output=False).returncode
diff --git a/lib/python/qmk/cli/flash.py b/lib/python/qmk/cli/flash.py
index 1b2932a5b..c2d9e09c6 100644
--- a/lib/python/qmk/cli/flash.py
+++ b/lib/python/qmk/cli/flash.py
@@ -38,7 +38,7 @@ def print_bootloader_help():
 @cli.argument('-km', '--keymap', help='The keymap to build a firmware for. Use this if you dont have a configurator file. Ignored when a configurator file is supplied.')
 @cli.argument('-kb', '--keyboard', type=keyboard_folder, completer=keyboard_completer, help='The keyboard to build a firmware for. Use this if you dont have a configurator file. Ignored when a configurator file is supplied.')
 @cli.argument('-n', '--dry-run', arg_only=True, action='store_true', help="Don't actually build, just show the make command to be run.")
-@cli.argument('-j', '--parallel', type=int, default=1, help="Set the number of parallel make jobs to run.")
+@cli.argument('-j', '--parallel', type=int, default=1, help="Set the number of parallel make jobs; 0 means unlimited.")
 @cli.argument('-e', '--env', arg_only=True, action='append', default=[], help="Set a variable to be passed to make. May be passed multiple times.")
 @cli.argument('-c', '--clean', arg_only=True, action='store_true', help="Remove object files before compiling.")
 @cli.subcommand('QMK Flash.')
diff --git a/lib/python/qmk/cli/format/c.py b/lib/python/qmk/cli/format/c.py
new file mode 100644
index 000000000..b7263e19f
--- /dev/null
+++ b/lib/python/qmk/cli/format/c.py
@@ -0,0 +1,137 @@
+"""Format C code according to QMK's style.
+"""
+from os import path
+from shutil import which
+from subprocess import CalledProcessError, DEVNULL, Popen, PIPE
+
+from argcomplete.completers import FilesCompleter
+from milc import cli
+
+from qmk.path import normpath
+from qmk.c_parse import c_source_files
+
+c_file_suffixes = ('c', 'h', 'cpp')
+core_dirs = ('drivers', 'quantum', 'tests', 'tmk_core', 'platforms')
+ignored = ('tmk_core/protocol/usb_hid', 'quantum/template', 'platforms/chibios')
+
+
+def find_clang_format():
+    """Returns the path to clang-format.
+    """
+    for clang_version in range(20, 6, -1):
+        binary = f'clang-format-{clang_version}'
+
+        if which(binary):
+            return binary
+
+    return 'clang-format'
+
+
+def find_diffs(files):
+    """Run clang-format and diff it against a file.
+    """
+    found_diffs = False
+
+    for file in files:
+        cli.log.debug('Checking for changes in %s', file)
+        clang_format = Popen([find_clang_format(), file], stdout=PIPE, stderr=PIPE, universal_newlines=True)
+        diff = cli.run(['diff', '-u', f'--label=a/{file}', f'--label=b/{file}', str(file), '-'], stdin=clang_format.stdout, capture_output=True)
+
+        if diff.returncode != 0:
+            print(diff.stdout)
+            found_diffs = True
+
+    return found_diffs
+
+
+def cformat_run(files):
+    """Spawn clang-format subprocess with proper arguments
+    """
+    # Determine which version of clang-format to use
+    clang_format = [find_clang_format(), '-i']
+
+    try:
+        cli.run([*clang_format, *map(str, files)], check=True, capture_output=False, stdin=DEVNULL)
+        cli.log.info('Successfully formatted the C code.')
+        return True
+
+    except CalledProcessError as e:
+        cli.log.error('Error formatting C code!')
+        cli.log.debug('%s exited with returncode %s', e.cmd, e.returncode)
+        cli.log.debug('STDOUT:')
+        cli.log.debug(e.stdout)
+        cli.log.debug('STDERR:')
+        cli.log.debug(e.stderr)
+        return False
+
+
+def filter_files(files, core_only=False):
+    """Yield only files to be formatted and skip the rest
+    """
+    if core_only:
+        # Filter non-core files
+        for index, file in enumerate(files):
+            # The following statement checks each file to see if the file path is
+            # - in the core directories
+            # - not in the ignored directories
+            if not any(i in str(file) for i in core_dirs) or any(i in str(file) for i in ignored):
+                files[index] = None
+                cli.log.debug("Skipping non-core file %s, as '--core-only' is used.", file)
+
+    for file in files:
+        if file and file.name.split('.')[-1] in c_file_suffixes:
+            yield file
+        else:
+            cli.log.debug('Skipping file %s', file)
+
+
+@cli.argument('-n', '--dry-run', arg_only=True, action='store_true', help="Flag only, don't automatically format.")
+@cli.argument('-b', '--base-branch', default='origin/master', help='Branch to compare to diffs to.')
+@cli.argument('-a', '--all-files', arg_only=True, action='store_true', help='Format all core files.')
+@cli.argument('--core-only', arg_only=True, action='store_true', help='Format core files only.')
+@cli.argument('files', nargs='*', arg_only=True, type=normpath, completer=FilesCompleter('.c'), help='Filename(s) to format.')
+@cli.subcommand("Format C code according to QMK's style.", hidden=False if cli.config.user.developer else True)
+def format_c(cli):
+    """Format C code according to QMK's style.
+    """
+    # Find the list of files to format
+    if cli.args.files:
+        files = list(filter_files(cli.args.files, cli.args.core_only))
+
+        if not files:
+            cli.log.error('No C files in filelist: %s', ', '.join(map(str, cli.args.files)))
+            exit(0)
+
+        if cli.args.all_files:
+            cli.log.warning('Filenames passed with -a, only formatting: %s', ','.join(map(str, files)))
+
+    elif cli.args.all_files:
+        all_files = c_source_files(core_dirs)
+        files = list(filter_files(all_files, True))
+
+    else:
+        git_diff_cmd = ['git', 'diff', '--name-only', cli.args.base_branch, *core_dirs]
+        git_diff = cli.run(git_diff_cmd, stdin=DEVNULL)
+
+        if git_diff.returncode != 0:
+            cli.log.error("Error running %s", git_diff_cmd)
+            print(git_diff.stderr)
+            return git_diff.returncode
+
+        files = []
+
+        for file in git_diff.stdout.strip().split('\n'):
+            if not any([file.startswith(ignore) for ignore in ignored]):
+                if path.exists(file) and file.split('.')[-1] in c_file_suffixes:
+                    files.append(file)
+
+    # Sanity check
+    if not files:
+        cli.log.error('No changed files detected. Use "qmk format-c -a" to format all core files')
+        return False
+
+    # Run clang-format on the files we've found
+    if cli.args.dry_run:
+        return not find_diffs(files)
+    else:
+        return cformat_run(files)
diff --git a/lib/python/qmk/cli/format/json.py b/lib/python/qmk/cli/format/json.py
index 1358c70e7..19d504491 100755
--- a/lib/python/qmk/cli/format/json.py
+++ b/lib/python/qmk/cli/format/json.py
@@ -8,7 +8,7 @@ from jsonschema import ValidationError
 from milc import cli
 
 from qmk.info import info_json
-from qmk.json_schema import json_load, keyboard_validate
+from qmk.json_schema import json_load, validate
 from qmk.json_encoders import InfoJSONEncoder, KeymapJSONEncoder
 from qmk.path import normpath
 
@@ -23,14 +23,13 @@ def format_json(cli):
 
     if cli.args.format == 'auto':
         try:
-            keyboard_validate(json_file)
+            validate(json_file, 'qmk.keyboard.v1')
             json_encoder = InfoJSONEncoder
 
         except ValidationError as e:
             cli.log.warning('File %s did not validate as a keyboard:\n\t%s', cli.args.json_file, e)
             cli.log.info('Treating %s as a keymap file.', cli.args.json_file)
             json_encoder = KeymapJSONEncoder
-
     elif cli.args.format == 'keyboard':
         json_encoder = InfoJSONEncoder
     elif cli.args.format == 'keymap':
diff --git a/lib/python/qmk/cli/format/python.py b/lib/python/qmk/cli/format/python.py
new file mode 100755
index 000000000..00612f97e
--- /dev/null
+++ b/lib/python/qmk/cli/format/python.py
@@ -0,0 +1,26 @@
+"""Format python code according to QMK's style.
+"""
+from subprocess import CalledProcessError, DEVNULL
+
+from milc import cli
+
+
+@cli.argument('-n', '--dry-run', arg_only=True, action='store_true', help="Don't actually format.")
+@cli.subcommand("Format python code according to QMK's style.", hidden=False if cli.config.user.developer else True)
+def format_python(cli):
+    """Format python code according to QMK's style.
+    """
+    edit = '--diff' if cli.args.dry_run else '--in-place'
+    yapf_cmd = ['yapf', '-vv', '--recursive', edit, 'bin/qmk', 'lib/python']
+    try:
+        cli.run(yapf_cmd, check=True, capture_output=False, stdin=DEVNULL)
+        cli.log.info('Python code in `bin/qmk` and `lib/python` is correctly formatted.')
+        return True
+
+    except CalledProcessError:
+        if cli.args.dry_run:
+            cli.log.error('Python code in `bin/qmk` and `lib/python` incorrectly formatted!')
+        else:
+            cli.log.error('Error formatting python code!')
+
+    return False
diff --git a/lib/python/qmk/cli/format/text.py b/lib/python/qmk/cli/format/text.py
new file mode 100644
index 000000000..e7e07b729
--- /dev/null
+++ b/lib/python/qmk/cli/format/text.py
@@ -0,0 +1,27 @@
+"""Ensure text files have the proper line endings.
+"""
+from subprocess import CalledProcessError
+
+from milc import cli
+
+
+@cli.subcommand("Ensure text files have the proper line endings.", hidden=True)
+def format_text(cli):
+    """Ensure text files have the proper line endings.
+    """
+    try:
+        file_list_cmd = cli.run(['git', 'ls-files', '-z'], check=True)
+    except CalledProcessError as e:
+        cli.log.error('Could not get file list: %s', e)
+        exit(1)
+    except Exception as e:
+        cli.log.error('Unhandled exception: %s: %s', e.__class__.__name__, e)
+        cli.log.exception(e)
+        exit(1)
+
+    dos2unix = cli.run(['xargs', '-0', 'dos2unix'], stdin=None, input=file_list_cmd.stdout)
+
+    if dos2unix.returncode != 0:
+        print(dos2unix.stderr)
+
+    return dos2unix.returncode
diff --git a/lib/python/qmk/cli/generate/config_h.py b/lib/python/qmk/cli/generate/config_h.py
index 54cd5b96a..c0c148f1c 100755
--- a/lib/python/qmk/cli/generate/config_h.py
+++ b/lib/python/qmk/cli/generate/config_h.py
@@ -12,7 +12,7 @@ from qmk.keyboard import keyboard_completer, keyboard_folder
 from qmk.path import is_keyboard, normpath
 
 
-def direct_pins(direct_pins):
+def direct_pins(direct_pins, postfix):
     """Return the config.h lines that set the direct pins.
     """
     rows = []
@@ -24,81 +24,60 @@ def direct_pins(direct_pins):
     col_count = len(direct_pins[0])
     row_count = len(direct_pins)
 
-    return """
-#ifndef MATRIX_COLS
-#   define MATRIX_COLS %s
-#endif // MATRIX_COLS
+    return f"""
+#ifndef MATRIX_COLS{postfix}
+#   define MATRIX_COLS{postfix} {col_count}
+#endif // MATRIX_COLS{postfix}
 
-#ifndef MATRIX_ROWS
-#   define MATRIX_ROWS %s
-#endif // MATRIX_ROWS
+#ifndef MATRIX_ROWS{postfix}
+#   define MATRIX_ROWS{postfix} {row_count}
+#endif // MATRIX_ROWS{postfix}
 
-#ifndef DIRECT_PINS
-#   define DIRECT_PINS {%s}
-#endif // DIRECT_PINS
-""" % (col_count, row_count, ','.join(rows))
+#ifndef DIRECT_PINS{postfix}
+#   define DIRECT_PINS{postfix} {{ {", ".join(rows)} }}
+#endif // DIRECT_PINS{postfix}
+"""
 
 
-def pin_array(define, pins):
+def pin_array(define, pins, postfix):
     """Return the config.h lines that set a pin array.
     """
     pin_num = len(pins)
     pin_array = ', '.join(map(str, [pin or 'NO_PIN' for pin in pins]))
 
     return f"""
-#ifndef {define}S
-#   define {define}S {pin_num}
-#endif // {define}S
+#ifndef {define}S{postfix}
+#   define {define}S{postfix} {pin_num}
+#endif // {define}S{postfix}
 
-#ifndef {define}_PINS
-#   define {define}_PINS {{ {pin_array} }}
-#endif // {define}_PINS
+#ifndef {define}_PINS{postfix}
+#   define {define}_PINS{postfix} {{ {pin_array} }}
+#endif // {define}_PINS{postfix}
 """
 
 
-def matrix_pins(matrix_pins):
+def matrix_pins(matrix_pins, postfix=''):
     """Add the matrix config to the config.h.
     """
     pins = []
 
     if 'direct' in matrix_pins:
-        pins.append(direct_pins(matrix_pins['direct']))
+        pins.append(direct_pins(matrix_pins['direct'], postfix))
 
     if 'cols' in matrix_pins:
-        pins.append(pin_array('MATRIX_COL', matrix_pins['cols']))
+        pins.append(pin_array('MATRIX_COL', matrix_pins['cols'], postfix))
 
     if 'rows' in matrix_pins:
-        pins.append(pin_array('MATRIX_ROW', matrix_pins['rows']))
+        pins.append(pin_array('MATRIX_ROW', matrix_pins['rows'], postfix))
 
     return '\n'.join(pins)
 
 
-@cli.argument('-o', '--output', arg_only=True, type=normpath, help='File to write to')
-@cli.argument('-q', '--quiet', arg_only=True, action='store_true', help="Quiet mode, only output error messages")
-@cli.argument('-kb', '--keyboard', type=keyboard_folder, completer=keyboard_completer, help='Keyboard to generate config.h for.')
-@cli.subcommand('Used by the make system to generate info_config.h from info.json', hidden=True)
-@automagic_keyboard
-@automagic_keymap
-def generate_config_h(cli):
-    """Generates the info_config.h file.
+def generate_config_items(kb_info_json, config_h_lines):
+    """Iterate through the info_config map to generate basic config values.
     """
-    # Determine our keyboard(s)
-    if not cli.config.generate_config_h.keyboard:
-        cli.log.error('Missing parameter: --keyboard')
-        cli.subcommands['info'].print_help()
-        return False
-
-    if not is_keyboard(cli.config.generate_config_h.keyboard):
-        cli.log.error('Invalid keyboard: "%s"', cli.config.generate_config_h.keyboard)
-        return False
-
-    # Build the info_config.h file.
-    kb_info_json = dotty(info_json(cli.config.generate_config_h.keyboard))
     info_config_map = json_load(Path('data/mappings/info_config.json'))
 
-    config_h_lines = ['/* This file was generated by `qmk generate-config-h`. Do not edit or copy.' ' */', '', '#pragma once']
-
-    # Iterate through the info_config map to generate basic things
     for config_key, info_dict in info_config_map.items():
         info_key = info_dict['info_key']
         key_type = info_dict.get('value_type', 'str')
@@ -135,9 +114,78 @@ def generate_config_h(cli):
             config_h_lines.append(f'#   define {config_key} {config_value}')
             config_h_lines.append(f'#endif // {config_key}')
 
+
+def generate_split_config(kb_info_json, config_h_lines):
+    """Generate the config.h lines for split boards."""
+    if 'primary' in kb_info_json['split']:
+        if kb_info_json['split']['primary'] in ('left', 'right'):
+            config_h_lines.append('')
+            config_h_lines.append('#ifndef MASTER_LEFT')
+            config_h_lines.append('#   ifndef MASTER_RIGHT')
+            if kb_info_json['split']['primary'] == 'left':
+                config_h_lines.append('#       define MASTER_LEFT')
+            elif kb_info_json['split']['primary'] == 'right':
+                config_h_lines.append('#       define MASTER_RIGHT')
+            config_h_lines.append('#   endif // MASTER_RIGHT')
+            config_h_lines.append('#endif // MASTER_LEFT')
+        elif kb_info_json['split']['primary'] == 'pin':
+            config_h_lines.append('')
+            config_h_lines.append('#ifndef SPLIT_HAND_PIN')
+            config_h_lines.append('#   define SPLIT_HAND_PIN')
+            config_h_lines.append('#endif // SPLIT_HAND_PIN')
+        elif kb_info_json['split']['primary'] == 'matrix_grid':
+            config_h_lines.append('')
+            config_h_lines.append('#ifndef SPLIT_HAND_MATRIX_GRID')
+            config_h_lines.append('#   define SPLIT_HAND_MATRIX_GRID {%s}' % (','.join(kb_info_json["split"]["matrix_grid"],)))
+            config_h_lines.append('#endif // SPLIT_HAND_MATRIX_GRID')
+        elif kb_info_json['split']['primary'] == 'eeprom':
+            config_h_lines.append('')
+            config_h_lines.append('#ifndef EE_HANDS')
+            config_h_lines.append('#   define EE_HANDS')
+            config_h_lines.append('#endif // EE_HANDS')
+
+    if 'protocol' in kb_info_json['split'].get('transport', {}):
+        if kb_info_json['split']['transport']['protocol'] == 'i2c':
+            config_h_lines.append('')
+            config_h_lines.append('#ifndef USE_I2C')
+            config_h_lines.append('#   define USE_I2C')
+            config_h_lines.append('#endif // USE_I2C')
+
+    if 'right' in kb_info_json['split'].get('matrix_pins', {}):
+        config_h_lines.append(matrix_pins(kb_info_json['split']['matrix_pins']['right'], '_RIGHT'))
+
+
+@cli.argument('-o', '--output', arg_only=True, type=normpath, help='File to write to')
+@cli.argument('-q', '--quiet', arg_only=True, action='store_true', help="Quiet mode, only output error messages")
+@cli.argument('-kb', '--keyboard', type=keyboard_folder, completer=keyboard_completer, help='Keyboard to generate config.h for.')
+@cli.subcommand('Used by the make system to generate info_config.h from info.json', hidden=True)
+@automagic_keyboard
+@automagic_keymap
+def generate_config_h(cli):
+    """Generates the info_config.h file.
+    """
+    # Determine our keyboard(s)
+    if not cli.config.generate_config_h.keyboard:
+        cli.log.error('Missing parameter: --keyboard')
+        cli.subcommands['info'].print_help()
+        return False
+
+    if not is_keyboard(cli.config.generate_config_h.keyboard):
+        cli.log.error('Invalid keyboard: "%s"', cli.config.generate_config_h.keyboard)
+        return False
+
+    # Build the info_config.h file.
+    kb_info_json = dotty(info_json(cli.config.generate_config_h.keyboard))
+    config_h_lines = ['/* This file was generated by `qmk generate-config-h`. Do not edit or copy.' ' */', '', '#pragma once']
+
+    generate_config_items(kb_info_json, config_h_lines)
+
     if 'matrix_pins' in kb_info_json:
         config_h_lines.append(matrix_pins(kb_info_json['matrix_pins']))
 
+    if 'split' in kb_info_json:
+        generate_split_config(kb_info_json, config_h_lines)
+
     # Show the results
     config_h = '\n'.join(config_h_lines)
 
diff --git a/lib/python/qmk/cli/generate/info_json.py b/lib/python/qmk/cli/generate/info_json.py
index 8931b68b6..284d1a851 100755
--- a/lib/python/qmk/cli/generate/info_json.py
+++ b/lib/python/qmk/cli/generate/info_json.py
@@ -4,15 +4,17 @@ Compile an info.json for a particular keyboard and pretty-print it.
 """
 import json
 
-from jsonschema import Draft7Validator, validators
+from argcomplete.completers import FilesCompleter
+from jsonschema import Draft7Validator, RefResolver, validators
 from milc import cli
+from pathlib import Path
 
 from qmk.decorators import automagic_keyboard, automagic_keymap
 from qmk.info import info_json
 from qmk.json_encoders import InfoJSONEncoder
-from qmk.json_schema import load_jsonschema
+from qmk.json_schema import compile_schema_store
 from qmk.keyboard import keyboard_completer, keyboard_folder
-from qmk.path import is_keyboard
+from qmk.path import is_keyboard, normpath
 
 
 def pruning_validator(validator_class):
@@ -34,15 +36,19 @@ def pruning_validator(validator_class):
 def strip_info_json(kb_info_json):
     """Remove the API-only properties from the info.json.
     """
+    schema_store = compile_schema_store()
     pruning_draft_7_validator = pruning_validator(Draft7Validator)
-    schema = load_jsonschema('keyboard')
-    validator = pruning_draft_7_validator(schema).validate
+    schema = schema_store['qmk.keyboard.v1']
+    resolver = RefResolver.from_schema(schema_store['qmk.keyboard.v1'], store=schema_store)
+    validator = pruning_draft_7_validator(schema, resolver=resolver).validate
 
     return validator(kb_info_json)
 
 
 @cli.argument('-kb', '--keyboard', type=keyboard_folder, completer=keyboard_completer, help='Keyboard to show info for.')
 @cli.argument('-km', '--keymap', help='Show the layers for a JSON keymap too.')
+@cli.argument('-o', '--output', arg_only=True, completer=FilesCompleter, help='Write the output the specified file, overwriting if necessary.')
+@cli.argument('-ow', '--overwrite', arg_only=True, action='store_true', help='Overwrite the existing info.json. (Overrides the location of --output)')
 @cli.subcommand('Generate an info.json file for a keyboard.', hidden=False if cli.config.user.developer else True)
 @automagic_keyboard
 @automagic_keymap
@@ -59,9 +65,29 @@ def generate_info_json(cli):
         cli.log.error('Invalid keyboard: "%s"', cli.config.generate_info_json.keyboard)
         return False
 
+    if cli.args.overwrite:
+        output_path = (Path('keyboards') / cli.config.generate_info_json.keyboard / 'info.json').resolve()
+
+        if cli.args.output:
+            cli.log.warning('Overwriting user supplied --output with %s', output_path)
+
+        cli.args.output = output_path
+
     # Build the info.json file
     kb_info_json = info_json(cli.config.generate_info_json.keyboard)
     strip_info_json(kb_info_json)
+    info_json_text = json.dumps(kb_info_json, indent=4, cls=InfoJSONEncoder)
+
+    if cli.args.output:
+        # Write to a file
+        output_path = normpath(cli.args.output)
+
+        if output_path.exists():
+            cli.log.warning('Overwriting output file %s', output_path)
+
+        output_path.write_text(info_json_text + '\n')
+        cli.log.info('Wrote info.json to %s.', output_path)
 
-    # Display the results
-    print(json.dumps(kb_info_json, indent=2, cls=InfoJSONEncoder))
+    else:
+        # Display the results
+        print(info_json_text)
diff --git a/lib/python/qmk/cli/generate/rules_mk.py b/lib/python/qmk/cli/generate/rules_mk.py
index 41c94e16b..2712b81cb 100755
--- a/lib/python/qmk/cli/generate/rules_mk.py
+++ b/lib/python/qmk/cli/generate/rules_mk.py
@@ -76,6 +76,17 @@ def generate_rules_mk(cli):
                 enabled = 'yes' if enabled else 'no'
                 rules_mk_lines.append(f'{feature}_ENABLE ?= {enabled}')
 
+    # Set SPLIT_TRANSPORT, if needed
+    if kb_info_json.get('split', {}).get('transport', {}).get('protocol') == 'custom':
+        rules_mk_lines.append('SPLIT_TRANSPORT ?= custom')
+
+    # Set CUSTOM_MATRIX, if needed
+    if kb_info_json.get('matrix_pins', {}).get('custom'):
+        if kb_info_json.get('matrix_pins', {}).get('custom_lite'):
+            rules_mk_lines.append('CUSTOM_MATRIX ?= lite')
+        else:
+            rules_mk_lines.append('CUSTOM_MATRIX ?= yes')
+
     # Show the results
     rules_mk = '\n'.join(rules_mk_lines) + '\n'
 
diff --git a/lib/python/qmk/cli/generate/version_h.py b/lib/python/qmk/cli/generate/version_h.py
new file mode 100644
index 000000000..b8e52588c
--- /dev/null
+++ b/lib/python/qmk/cli/generate/version_h.py
@@ -0,0 +1,28 @@
+"""Used by the make system to generate version.h for use in code.
+"""
+from milc import cli
+
+from qmk.commands import create_version_h
+from qmk.path import normpath
+
+
+@cli.argument('-o', '--output', arg_only=True, type=normpath, help='File to write to')
+@cli.argument('-q', '--quiet', arg_only=True, action='store_true', help="Quiet mode, only output error messages")
+@cli.argument('--skip-git', arg_only=True, action='store_true', help='Skip Git operations')
+@cli.argument('--skip-all', arg_only=True, action='store_true', help='Use placeholder values for all defines (implies --skip-git)')
+@cli.subcommand('Used by the make system to generate version.h for use in code', hidden=True)
+def generate_version_h(cli):
+    """Generates the version.h file.
+    """
+    if cli.args.skip_all:
+        cli.args.skip_git = True
+
+    version_h = create_version_h(cli.args.skip_git, cli.args.skip_all)
+
+    if cli.args.output:
+        cli.args.output.write_text(version_h)
+
+        if not cli.args.quiet:
+            cli.log.info('Wrote version.h to %s.', cli.args.output)
+    else:
+        print(version_h)
diff --git a/lib/python/qmk/cli/info.py b/lib/python/qmk/cli/info.py
index 0d08d242c..3131d4b53 100755
--- a/lib/python/qmk/cli/info.py
+++ b/lib/python/qmk/cli/info.py
@@ -24,19 +24,15 @@ def show_keymap(kb_info_json, title_caps=True):
     keymap_path = locate_keymap(cli.config.info.keyboard, cli.config.info.keymap)
 
     if keymap_path and keymap_path.suffix == '.json':
-        if title_caps:
-            cli.echo('{fg_blue}Keymap "%s"{fg_reset}:', cli.config.info.keymap)
-        else:
-            cli.echo('{fg_blue}keymap_%s{fg_reset}:', cli.config.info.keymap)
-
         keymap_data = json.load(keymap_path.open(encoding='utf-8'))
         layout_name = keymap_data['layout']
+        layout_name = kb_info_json.get('layout_aliases', {}).get(layout_name, layout_name)  # Resolve alias names
 
         for layer_num, layer in enumerate(keymap_data['layers']):
             if title_caps:
-                cli.echo('{fg_cyan}Layer %s{fg_reset}:', layer_num)
+                cli.echo('{fg_cyan}Keymap %s Layer %s{fg_reset}:', cli.config.info.keymap, layer_num)
             else:
-                cli.echo('{fg_cyan}layer_%s{fg_reset}:', layer_num)
+                cli.echo('{fg_cyan}keymap.%s.layer.%s{fg_reset}:', cli.config.info.keymap, layer_num)
 
             print(render_layout(kb_info_json['layouts'][layout_name]['layout'], cli.config.info.ascii, layer))
 
@@ -45,7 +41,7 @@ def show_layouts(kb_info_json, title_caps=True):
     """Render the layouts with info.json labels.
     """
     for layout_name, layout_art in render_layouts(kb_info_json, cli.config.info.ascii).items():
-        title = layout_name.title() if title_caps else layout_name
+        title = f'Layout {layout_name.title()}' if title_caps else f'layouts.{layout_name}'
         cli.echo('{fg_cyan}%s{fg_reset}:', title)
         print(layout_art)  # Avoid passing dirty data to cli.echo()
 
@@ -87,23 +83,12 @@ def print_friendly_output(kb_info_json):
         cli.echo('{fg_blue}Maintainer{fg_reset}: %s', kb_info_json['maintainer'])
     cli.echo('{fg_blue}Keyboard Folder{fg_reset}: %s', kb_info_json.get('keyboard_folder', 'Unknown'))
     cli.echo('{fg_blue}Layouts{fg_reset}: %s', ', '.join(sorted(kb_info_json['layouts'].keys())))
-    if 'width' in kb_info_json and 'height' in kb_info_json:
-        cli.echo('{fg_blue}Size{fg_reset}: %s x %s' % (kb_info_json['width'], kb_info_json['height']))
     cli.echo('{fg_blue}Processor{fg_reset}: %s', kb_info_json.get('processor', 'Unknown'))
     cli.echo('{fg_blue}Bootloader{fg_reset}: %s', kb_info_json.get('bootloader', 'Unknown'))
     if 'layout_aliases' in kb_info_json:
         aliases = [f'{key}={value}' for key, value in kb_info_json['layout_aliases'].items()]
         cli.echo('{fg_blue}Layout aliases:{fg_reset} %s' % (', '.join(aliases),))
 
-    if cli.config.info.layouts:
-        show_layouts(kb_info_json, True)
-
-    if cli.config.info.matrix:
-        show_matrix(kb_info_json, True)
-
-    if cli.config_source.info.keymap and cli.config_source.info.keymap != 'config_file':
-        show_keymap(kb_info_json, True)
-
 
 def print_text_output(kb_info_json):
     """Print the info.json in a plain text format.
@@ -124,6 +109,24 @@ def print_text_output(kb_info_json):
         show_keymap(kb_info_json, False)
 
 
+def print_dotted_output(kb_info_json, prefix=''):
+    """Print the info.json in a plain text format with dot-joined keys.
+    """
+    for key in sorted(kb_info_json):
+        new_prefix = f'{prefix}.{key}' if prefix else key
+
+        if key in ['parse_errors', 'parse_warnings']:
+            continue
+        elif key == 'layouts' and prefix == '':
+            cli.echo('{fg_blue}layouts{fg_reset}: %s', ', '.join(sorted(kb_info_json['layouts'].keys())))
+        elif isinstance(kb_info_json[key], dict):
+            print_dotted_output(kb_info_json[key], new_prefix)
+        elif isinstance(kb_info_json[key], list):
+            cli.echo('{fg_blue}%s{fg_reset}: %s', new_prefix, ', '.join(map(str, sorted(kb_info_json[key]))))
+        else:
+            cli.echo('{fg_blue}%s{fg_reset}: %s', new_prefix, kb_info_json[key])
+
+
 def print_parsed_rules_mk(keyboard_name):
     rules = rules_mk(keyboard_name)
     for k in sorted(rules.keys()):
@@ -164,10 +167,22 @@ def info(cli):
     # Output in the requested format
     if cli.args.format == 'json':
         print(json.dumps(kb_info_json, cls=InfoJSONEncoder))
+        return True
     elif cli.args.format == 'text':
-        print_text_output(kb_info_json)
+        print_dotted_output(kb_info_json)
+        title_caps = False
     elif cli.args.format == 'friendly':
         print_friendly_output(kb_info_json)
+        title_caps = True
     else:
         cli.log.error('Unknown format: %s', cli.args.format)
         return False
+
+    if cli.config.info.layouts:
+        show_layouts(kb_info_json, title_caps)
+
+    if cli.config.info.matrix:
+        show_matrix(kb_info_json, title_caps)
+
+    if cli.config_source.info.keymap and cli.config_source.info.keymap != 'config_file':
+        show_keymap(kb_info_json, title_caps)
diff --git a/lib/python/qmk/cli/kle2json.py b/lib/python/qmk/cli/kle2json.py
index acb75ef4f..bbfddf426 100755
--- a/lib/python/qmk/cli/kle2json.py
+++ b/lib/python/qmk/cli/kle2json.py
@@ -44,8 +44,6 @@ def kle2json(cli):
         'keyboard_name': kle.name,
         'url': '',
         'maintainer': 'qmk',
-        'width': kle.columns,
-        'height': kle.rows,
         'layouts': {
             'LAYOUT': {
                 'layout': kle2qmk(kle)
diff --git a/lib/python/qmk/cli/multibuild.py b/lib/python/qmk/cli/multibuild.py
index bdb0b493c..85ed0fa1e 100755
--- a/lib/python/qmk/cli/multibuild.py
+++ b/lib/python/qmk/cli/multibuild.py
@@ -10,7 +10,7 @@ from subprocess import DEVNULL
 from milc import cli
 
 from qmk.constants import QMK_FIRMWARE
-from qmk.commands import _find_make
+from qmk.commands import _find_make, get_make_parallel_args
 import qmk.keyboard
 import qmk.keymap
 
@@ -28,7 +28,7 @@ def _is_split(keyboard_name):
     return True if 'SPLIT_KEYBOARD' in rules_mk and rules_mk['SPLIT_KEYBOARD'].lower() == 'yes' else False
 
 
-@cli.argument('-j', '--parallel', type=int, default=1, help="Set the number of parallel make jobs to run.")
+@cli.argument('-j', '--parallel', type=int, default=1, help="Set the number of parallel make jobs; 0 means unlimited.")
 @cli.argument('-c', '--clean', arg_only=True, action='store_true', help="Remove object files before compiling.")
 @cli.argument('-f', '--filter', arg_only=True, action='append', default=[], help="Filter the list of keyboards based on the supplied value in rules.mk. Supported format is 'SPLIT_KEYBOARD=yes'. May be passed multiple times.")
 @cli.argument('-km', '--keymap', type=str, default='default', help="The keymap name to build. Default is 'default'.")
@@ -80,7 +80,7 @@ all: {keyboard_safe}_binary
                 )
                 # yapf: enable
 
-    cli.run([make_cmd, '-j', str(cli.args.parallel), '-f', makefile.as_posix(), 'all'], capture_output=False, stdin=DEVNULL)
+    cli.run([make_cmd, *get_make_parallel_args(cli.args.parallel), '-f', makefile.as_posix(), 'all'], capture_output=False, stdin=DEVNULL)
 
     # Check for failures
     failures = [f for f in builddir.glob(f'failed.log.{os.getpid()}.*')]
diff --git a/lib/python/qmk/cli/new/keyboard.py b/lib/python/qmk/cli/new/keyboard.py
index ae4445ca4..9e4232679 100644
--- a/lib/python/qmk/cli/new/keyboard.py
+++ b/lib/python/qmk/cli/new/keyboard.py
@@ -1,11 +1,142 @@
-"""This script automates the creation of keyboards.
+"""This script automates the creation of new keyboard directories using a starter template.
 """
+from datetime import date
+import fileinput
+from pathlib import Path
+import re
+import shutil
+
+from qmk.commands import git_get_username
+import qmk.path
 from milc import cli
+from milc.questions import choice, question
+
+KEYBOARD_TYPES = ['avr', 'ps2avrgb']
+
+
+def keyboard_name(name):
+    """Callable for argparse validation.
+    """
+    if not validate_keyboard_name(name):
+        raise ValueError
+    return name
 
 
-@cli.subcommand('Creates a new keyboard')
+def validate_keyboard_name(name):
+    """Returns True if the given keyboard name contains only lowercase a-z, 0-9 and underscore characters.
+    """
+    regex = re.compile(r'^[a-z0-9][a-z0-9/_]+$')
+    return bool(regex.match(name))
+
+
+@cli.argument('-kb', '--keyboard', help='Specify the name for the new keyboard directory', arg_only=True, type=keyboard_name)
+@cli.argument('-t', '--type', help='Specify the keyboard type', arg_only=True, choices=KEYBOARD_TYPES)
+@cli.argument('-u', '--username', help='Specify your username (default from Git config)', arg_only=True)
+@cli.subcommand('Creates a new keyboard directory')
 def new_keyboard(cli):
-    """Creates a new keyboard
+    """Creates a new keyboard.
     """
-    # TODO: replace this bodge to the existing script
-    cli.run(['util/new_keyboard.sh'], stdin=None, capture_output=False)
+    cli.log.info('{style_bright}Generating a new QMK keyboard directory{style_normal}')
+    cli.echo('')
+
+    # Get keyboard name
+    new_keyboard_name = None
+    while not new_keyboard_name:
+        new_keyboard_name = cli.args.keyboard if cli.args.keyboard else question('Keyboard Name:')
+        if not validate_keyboard_name(new_keyboard_name):
+            cli.log.error('Keyboard names must contain only {fg_cyan}lowercase a-z{fg_reset}, {fg_cyan}0-9{fg_reset}, and {fg_cyan}_{fg_reset}! Please choose a different name.')
+
+            # Exit if passed by arg
+            if cli.args.keyboard:
+                return False
+
+            new_keyboard_name = None
+            continue
+
+        keyboard_path = qmk.path.keyboard(new_keyboard_name)
+        if keyboard_path.exists():
+            cli.log.error(f'Keyboard {{fg_cyan}}{new_keyboard_name}{{fg_reset}} already exists! Please choose a different name.')
+
+            # Exit if passed by arg
+            if cli.args.keyboard:
+                return False
+
+            new_keyboard_name = None
+
+    # Get keyboard type
+    keyboard_type = cli.args.type if cli.args.type else choice('Keyboard Type:', KEYBOARD_TYPES, default=0)
+
+    # Get username
+    user_name = None
+    while not user_name:
+        user_name = question('Your Name:', default=find_user_name())
+
+        if not user_name:
+            cli.log.error('You didn\'t provide a username, and we couldn\'t find one set in your QMK or Git configs. Please try again.')
+
+            # Exit if passed by arg
+            if cli.args.username:
+                return False
+
+    # Copy all the files
+    copy_templates(keyboard_type, keyboard_path)
+
+    # Replace all the placeholders
+    keyboard_basename = keyboard_path.name
+    replacements = [
+        ('%YEAR%', str(date.today().year)),
+        ('%KEYBOARD%', keyboard_basename),
+        ('%YOUR_NAME%', user_name),
+    ]
+    filenames = [
+        keyboard_path / 'config.h',
+        keyboard_path / 'info.json',
+        keyboard_path / 'readme.md',
+        keyboard_path / f'{keyboard_basename}.c',
+        keyboard_path / f'{keyboard_basename}.h',
+        keyboard_path / 'keymaps/default/readme.md',
+        keyboard_path / 'keymaps/default/keymap.c',
+    ]
+    replace_placeholders(replacements, filenames)
+
+    cli.echo('')
+    cli.log.info(f'{{fg_green}}Created a new keyboard called {{fg_cyan}}{new_keyboard_name}{{fg_green}}.{{fg_reset}}')
+    cli.log.info(f'To start working on things, `cd` into {{fg_cyan}}{keyboard_path}{{fg_reset}},')
+    cli.log.info('or open the directory in your preferred text editor.')
+
+
+def find_user_name():
+    if cli.args.username:
+        return cli.args.username
+    elif cli.config.user.name:
+        return cli.config.user.name
+    else:
+        return git_get_username()
+
+
+def copy_templates(keyboard_type, keyboard_path):
+    """Copies the template files from quantum/template to the new keyboard directory.
+    """
+    template_base_path = Path('quantum/template')
+    keyboard_basename = keyboard_path.name
+
+    cli.log.info('Copying base template files...')
+    shutil.copytree(template_base_path / 'base', keyboard_path)
+
+    cli.log.info(f'Copying {{fg_cyan}}{keyboard_type}{{fg_reset}} template files...')
+    shutil.copytree(template_base_path / keyboard_type, keyboard_path, dirs_exist_ok=True)
+
+    cli.log.info(f'Renaming {{fg_cyan}}keyboard.[ch]{{fg_reset}} to {{fg_cyan}}{keyboard_basename}.[ch]{{fg_reset}}...')
+    shutil.move(keyboard_path / 'keyboard.c', keyboard_path / f'{keyboard_basename}.c')
+    shutil.move(keyboard_path / 'keyboard.h', keyboard_path / f'{keyboard_basename}.h')
+
+
+def replace_placeholders(replacements, filenames):
+    """Replaces the given placeholders in each template file.
+    """
+    for replacement in replacements:
+        cli.log.info(f'Replacing {{fg_cyan}}{replacement[0]}{{fg_reset}} with {{fg_cyan}}{replacement[1]}{{fg_reset}}...')
+
+        with fileinput.input(files=filenames, inplace=True) as file:
+            for line in file:
+                print(line.replace(replacement[0], replacement[1]), end='')
diff --git a/lib/python/qmk/cli/pyformat.py b/lib/python/qmk/cli/pyformat.py
index abe5f6de1..c624f74ae 100755
--- a/lib/python/qmk/cli/pyformat.py
+++ b/lib/python/qmk/cli/pyformat.py
@@ -1,26 +1,24 @@
-"""Format python code according to QMK's style.
+"""Point people to the new command name.
 """
-from subprocess import CalledProcessError, DEVNULL
+import sys
+from pathlib import Path
 
 from milc import cli
 
 
-@cli.argument('-n', '--dry-run', arg_only=True, action='store_true', help="Flag only, don't automatically format.")
-@cli.subcommand("Format python code according to QMK's style.", hidden=False if cli.config.user.developer else True)
+@cli.argument('-n', '--dry-run', arg_only=True, action='store_true', help="Don't actually format.")
+@cli.subcommand('Pointer to the new command name: qmk format-python.', hidden=False if cli.config.user.developer else True)
 def pyformat(cli):
-    """Format python code according to QMK's style.
+    """Pointer to the new command name: qmk format-python.
     """
-    edit = '--diff' if cli.args.dry_run else '--in-place'
-    yapf_cmd = ['yapf', '-vv', '--recursive', edit, 'bin/qmk', 'lib/python']
-    try:
-        cli.run(yapf_cmd, check=True, capture_output=False, stdin=DEVNULL)
-        cli.log.info('Python code in `bin/qmk` and `lib/python` is correctly formatted.')
-        return True
+    cli.log.warning('"qmk pyformat" has been renamed to "qmk format-python". Please use the new command in the future.')
+    argv = [sys.executable, *sys.argv]
+    argv[argv.index('pyformat')] = 'format-python'
+    script_path = Path(argv[1])
+    script_path_exe = Path(f'{argv[1]}.exe')
 
-    except CalledProcessError:
-        if cli.args.dry_run:
-            cli.log.error('Python code in `bin/qmk` and `lib/python` incorrectly formatted!')
-        else:
-            cli.log.error('Error formatting python code!')
+    if not script_path.exists() and script_path_exe.exists():
+        # For reasons I don't understand ".exe" is stripped from the script name on windows.
+        argv[1] = str(script_path_exe)
 
-    return False
+    return cli.run(argv, capture_output=False).returncode