diff --git a/Makefile b/Makefile
index 17dd3130..e2138a20 100644
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ archlinux: archive
 	sed -i "s/pkgver=[0-9.]*/pkgver=$(VERSION)/" package/archlinux/PKGBUILD
 
 check:
-	cd src && mypy --strict -p $(PROJECT)
+	cd src && mypy --implicit-reexport --strict -p $(PROJECT)
 	cd src && find $(PROJECT) -name '*.py' -execdir autopep8 --max-line-length 120 -aa -i {} +
 	cd src && pylint --rcfile=../.pylintrc $(PROJECT)
 
diff --git a/src/ahriman/application/ahriman.py b/src/ahriman/application/ahriman.py
index 23e91871..f19dcef6 100644
--- a/src/ahriman/application/ahriman.py
+++ b/src/ahriman/application/ahriman.py
@@ -18,34 +18,11 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 #
 import argparse
-import logging
 import sys
 
-from multiprocessing import Pool
-
-import ahriman.application.functions as functions
+import ahriman.application.handlers as handlers
 import ahriman.version as version
 
-from ahriman.application.lock import Lock
-from ahriman.core.configuration import Configuration
-
-
-def _call(args: argparse.Namespace, architecture: str, config: Configuration) -> bool:
-    '''
-    additional function to wrap all calls for multiprocessing library
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    :return: True on success, False otherwise
-    '''
-    try:
-        with Lock(args, architecture, config):
-            args.fn(args, architecture, config)
-        return True
-    except Exception:
-        logging.getLogger('root').exception('process exception', exc_info=True)
-        return False
-
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(prog='ahriman', description='ArcHlinux ReposItory MANager')
@@ -66,12 +43,12 @@ if __name__ == '__main__':
     add_parser = subparsers.add_parser('add', description='add package')
     add_parser.add_argument('package', help='package base/name or archive path', nargs='+')
     add_parser.add_argument('--without-dependencies', help='do not add dependencies', action='store_true')
-    add_parser.set_defaults(fn=functions.add)
+    add_parser.set_defaults(handler=handlers.Add)
 
     check_parser = subparsers.add_parser('check', description='check for updates. Same as update --dry-run --no-manual')
     check_parser.add_argument('package', help='filter check by package base', nargs='*')
     check_parser.add_argument('--no-vcs', help='do not check VCS packages', action='store_true')
-    check_parser.set_defaults(fn=functions.update, no_aur=False, no_manual=True, dry_run=True)
+    check_parser.set_defaults(handler=handlers.Update, no_aur=False, no_manual=True, dry_run=True)
 
     clean_parser = subparsers.add_parser('clean', description='clear all local caches')
     clean_parser.add_argument('--no-build', help='do not clear directory with package sources', action='store_true')
@@ -82,30 +59,30 @@ if __name__ == '__main__':
         help='do not clear directory with manually added packages',
         action='store_true')
     clean_parser.add_argument('--no-packages', help='do not clear directory with built packages', action='store_true')
-    clean_parser.set_defaults(fn=functions.clean)
+    clean_parser.set_defaults(handler=handlers.Clean)
 
     config_parser = subparsers.add_parser('config', description='dump configuration for specified architecture')
-    config_parser.set_defaults(fn=functions.dump_config, lock=None, no_report=True, unsafe=True)
+    config_parser.set_defaults(handler=handlers.Dump, lock=None, no_report=True, unsafe=True)
 
     rebuild_parser = subparsers.add_parser('rebuild', description='rebuild whole repository')
-    rebuild_parser.set_defaults(fn=functions.rebuild)
+    rebuild_parser.set_defaults(handler=handlers.Rebuild)
 
     remove_parser = subparsers.add_parser('remove', description='remove package')
     remove_parser.add_argument('package', help='package name or base', nargs='+')
-    remove_parser.set_defaults(fn=functions.remove)
+    remove_parser.set_defaults(handler=handlers.Remove)
 
     report_parser = subparsers.add_parser('report', description='generate report')
     report_parser.add_argument('target', help='target to generate report', nargs='*')
-    report_parser.set_defaults(fn=functions.report)
+    report_parser.set_defaults(handler=handlers.Report)
 
     status_parser = subparsers.add_parser('status', description='request status of the package')
     status_parser.add_argument('--ahriman', help='get service status itself', action='store_true')
     status_parser.add_argument('package', help='filter status by package base', nargs='*')
-    status_parser.set_defaults(fn=functions.status, lock=None, no_report=True, unsafe=True)
+    status_parser.set_defaults(handler=handlers.Status, lock=None, no_report=True, unsafe=True)
 
     sync_parser = subparsers.add_parser('sync', description='sync packages to remote server')
     sync_parser.add_argument('target', help='target to sync', nargs='*')
-    sync_parser.set_defaults(fn=functions.sync)
+    sync_parser.set_defaults(handler=handlers.Sync)
 
     update_parser = subparsers.add_parser('update', description='run updates')
     update_parser.add_argument('package', help='filter check by package base', nargs='*')
@@ -114,19 +91,17 @@ if __name__ == '__main__':
     update_parser.add_argument('--no-aur', help='do not check for AUR updates. Implies --no-vcs', action='store_true')
     update_parser.add_argument('--no-manual', help='do not include manual updates', action='store_true')
     update_parser.add_argument('--no-vcs', help='do not check VCS packages', action='store_true')
-    update_parser.set_defaults(fn=functions.update)
+    update_parser.set_defaults(handler=handlers.Update)
 
     web_parser = subparsers.add_parser('web', description='start web server')
-    web_parser.set_defaults(fn=functions.web, lock=None, no_report=True)
+    web_parser.set_defaults(handler=handlers.Web, lock=None, no_report=True)
 
-    cmd_args = parser.parse_args()
-    if 'fn' not in cmd_args:
+    args = parser.parse_args()
+    if 'handler' not in args:
         parser.print_help()
         sys.exit(1)
 
-    configuration = Configuration.from_path(cmd_args.config, not cmd_args.no_log)
-    with Pool(len(cmd_args.architecture)) as pool:
-        result = pool.starmap(
-            _call, [(cmd_args, architecture, configuration) for architecture in cmd_args.architecture])
+    handler: handlers.Handler = args.handler
+    status = handler.execute(args)
 
-    sys.exit(0 if all(result) else 1)
+    sys.exit(status)
diff --git a/src/ahriman/application/functions.py b/src/ahriman/application/functions.py
deleted file mode 100644
index 1cc7cfb3..00000000
--- a/src/ahriman/application/functions.py
+++ /dev/null
@@ -1,163 +0,0 @@
-#
-# Copyright (c) 2021 Evgenii Alekseev.
-#
-# This file is part of ahriman
-# (see https://github.com/arcan1s/ahriman).
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-import argparse
-
-from typing import Iterable, Tuple
-
-from ahriman.application.application import Application
-from ahriman.core.configuration import Configuration
-from ahriman.models.build_status import BuildStatus
-from ahriman.models.package import Package
-
-
-def add(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    add packages callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    Application(architecture, config).add(args.package, args.without_dependencies)
-
-
-def clean(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    clean caches callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    Application(architecture, config).clean(args.no_build, args.no_cache, args.no_chroot,
-                                            args.no_manual, args.no_packages)
-
-
-def dump_config(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    configuration dump callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    del args
-    config_dump = config.dump(architecture)
-    for section, values in sorted(config_dump.items()):
-        print(f'[{section}]')
-        for key, value in sorted(values.items()):
-            print(f'{key} = {value}')
-        print()
-
-
-def rebuild(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    world rebuild callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    del args
-    app = Application(architecture, config)
-    packages = app.repository.packages()
-    app.update(packages)
-
-
-def remove(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    remove packages callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    Application(architecture, config).remove(args.package)
-
-
-def report(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    generate report callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    Application(architecture, config).report(args.target)
-
-
-def status(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    package status callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    application = Application(architecture, config)
-    if args.ahriman:
-        ahriman = application.repository.reporter.get_self()
-        print(ahriman.pretty_print())
-        print()
-    if args.package:
-        packages: Iterable[Tuple[Package, BuildStatus]] = sum(
-            [application.repository.reporter.get(base) for base in args.package],
-            start=[])
-    else:
-        packages = application.repository.reporter.get(None)
-    for package, package_status in sorted(packages, key=lambda item: item[0].base):
-        print(package.pretty_print())
-        print(f'\t{package.version}')
-        print(f'\t{package_status.pretty_print()}')
-
-
-def sync(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    sync to remote server callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    Application(architecture, config).sync(args.target)
-
-
-def update(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    update packages callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    # typing workaround
-    def log_fn(line: str) -> None:
-        return print(line) if args.dry_run else application.logger.info(line)
-
-    application = Application(architecture, config)
-    packages = application.get_updates(args.package, args.no_aur, args.no_manual, args.no_vcs, log_fn)
-    if args.dry_run:
-        return
-
-    application.update(packages)
-
-
-def web(args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-    '''
-    web server callback
-    :param args: command line args
-    :param architecture: repository architecture
-    :param config: configuration instance
-    '''
-    del args
-    from ahriman.web.web import run_server, setup_service
-    application = setup_service(architecture, config)
-    run_server(application, architecture)
diff --git a/src/ahriman/application/handlers/__init__.py b/src/ahriman/application/handlers/__init__.py
new file mode 100644
index 00000000..5f1ea37d
--- /dev/null
+++ b/src/ahriman/application/handlers/__init__.py
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+from ahriman.application.handlers.handler import Handler
+
+from ahriman.application.handlers.add import Add
+from ahriman.application.handlers.clean import Clean
+from ahriman.application.handlers.dump import Dump
+from ahriman.application.handlers.rebuild import Rebuild
+from ahriman.application.handlers.remove import Remove
+from ahriman.application.handlers.report import Report
+from ahriman.application.handlers.status import Status
+from ahriman.application.handlers.sync import Sync
+from ahriman.application.handlers.update import Update
+from ahriman.application.handlers.web import Web
diff --git a/src/ahriman/application/handlers/add.py b/src/ahriman/application/handlers/add.py
new file mode 100644
index 00000000..e8c9aeca
--- /dev/null
+++ b/src/ahriman/application/handlers/add.py
@@ -0,0 +1,42 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Add(Handler):
+    '''
+    add packages handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        Application(architecture, config).add(args.package, args.without_dependencies)
diff --git a/src/ahriman/application/handlers/clean.py b/src/ahriman/application/handlers/clean.py
new file mode 100644
index 00000000..7e47aa4f
--- /dev/null
+++ b/src/ahriman/application/handlers/clean.py
@@ -0,0 +1,43 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Clean(Handler):
+    '''
+    clean caches handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        Application(architecture, config).clean(args.no_build, args.no_cache, args.no_chroot,
+                                                args.no_manual, args.no_packages)
diff --git a/src/ahriman/application/handlers/dump.py b/src/ahriman/application/handlers/dump.py
new file mode 100644
index 00000000..237baa6d
--- /dev/null
+++ b/src/ahriman/application/handlers/dump.py
@@ -0,0 +1,46 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Dump(Handler):
+    '''
+    dump config handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        config_dump = config.dump(architecture)
+        for section, values in sorted(config_dump.items()):
+            print(f'[{section}]')
+            for key, value in sorted(values.items()):
+                print(f'{key} = {value}')
+            print()
diff --git a/src/ahriman/application/handlers/handler.py b/src/ahriman/application/handlers/handler.py
new file mode 100644
index 00000000..c1830c65
--- /dev/null
+++ b/src/ahriman/application/handlers/handler.py
@@ -0,0 +1,75 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+from __future__ import annotations
+
+import argparse
+import logging
+from multiprocessing import Pool
+
+from typing import Type
+
+from ahriman.application.lock import Lock
+from ahriman.core.configuration import Configuration
+
+
+class Handler:
+    '''
+    base handler class for command callbacks
+    '''
+
+    @classmethod
+    def _call(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> bool:
+        '''
+        additional function to wrap all calls for multiprocessing library
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        :return: True on success, False otherwise
+        '''
+        try:
+            with Lock(args, architecture, config):
+                cls.run(args, architecture, config)
+            return True
+        except Exception:
+            logging.getLogger('root').exception('process exception', exc_info=True)
+            return False
+
+    @classmethod
+    def execute(cls: Type[Handler], args: argparse.Namespace) -> int:
+        '''
+        execute function for all aru
+        :param args: command line args
+        :return: 0 on success, 1 otherwise
+        '''
+        configuration = Configuration.from_path(args.config, not args.no_log)
+        with Pool(len(args.architecture)) as pool:
+            result = pool.starmap(
+                cls._call, [(args, architecture, configuration) for architecture in args.architecture])
+        return 0 if all(result) else 1
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        raise NotImplementedError
diff --git a/src/ahriman/application/handlers/rebuild.py b/src/ahriman/application/handlers/rebuild.py
new file mode 100644
index 00000000..6c2616ae
--- /dev/null
+++ b/src/ahriman/application/handlers/rebuild.py
@@ -0,0 +1,44 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Rebuild(Handler):
+    '''
+    make world handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        application = Application(architecture, config)
+        packages = application.repository.packages()
+        application.update(packages)
diff --git a/src/ahriman/application/handlers/remove.py b/src/ahriman/application/handlers/remove.py
new file mode 100644
index 00000000..5a7ac5b4
--- /dev/null
+++ b/src/ahriman/application/handlers/remove.py
@@ -0,0 +1,42 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Remove(Handler):
+    '''
+    remove packages handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        Application(architecture, config).remove(args.package)
diff --git a/src/ahriman/application/handlers/report.py b/src/ahriman/application/handlers/report.py
new file mode 100644
index 00000000..7c24417b
--- /dev/null
+++ b/src/ahriman/application/handlers/report.py
@@ -0,0 +1,42 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Report(Handler):
+    '''
+    generate report handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        Application(architecture, config).report(args.target)
diff --git a/src/ahriman/application/handlers/status.py b/src/ahriman/application/handlers/status.py
new file mode 100644
index 00000000..25ed4634
--- /dev/null
+++ b/src/ahriman/application/handlers/status.py
@@ -0,0 +1,58 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Iterable, Tuple, Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+from ahriman.models.build_status import BuildStatus
+from ahriman.models.package import Package
+
+
+class Status(Handler):
+    '''
+    package status handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        application = Application(architecture, config)
+        if args.ahriman:
+            ahriman = application.repository.reporter.get_self()
+            print(ahriman.pretty_print())
+            print()
+        if args.package:
+            packages: Iterable[Tuple[Package, BuildStatus]] = sum(
+                [application.repository.reporter.get(base) for base in args.package],
+                start=[])
+        else:
+            packages = application.repository.reporter.get(None)
+        for package, package_status in sorted(packages, key=lambda item: item[0].base):
+            print(package.pretty_print())
+            print(f'\t{package.version}')
+            print(f'\t{package_status.pretty_print()}')
diff --git a/src/ahriman/application/handlers/sync.py b/src/ahriman/application/handlers/sync.py
new file mode 100644
index 00000000..931776cf
--- /dev/null
+++ b/src/ahriman/application/handlers/sync.py
@@ -0,0 +1,42 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Sync(Handler):
+    '''
+    remove sync handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        Application(architecture, config).sync(args.target)
diff --git a/src/ahriman/application/handlers/update.py b/src/ahriman/application/handlers/update.py
new file mode 100644
index 00000000..fa56d89c
--- /dev/null
+++ b/src/ahriman/application/handlers/update.py
@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.application import Application
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Update(Handler):
+    '''
+    package update handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        # typing workaround
+        def log_fn(line: str) -> None:
+            return print(line) if args.dry_run else application.logger.info(line)
+
+        application = Application(architecture, config)
+        packages = application.get_updates(args.package, args.no_aur, args.no_manual, args.no_vcs, log_fn)
+        if args.dry_run:
+            return
+
+        application.update(packages)
diff --git a/src/ahriman/application/handlers/web.py b/src/ahriman/application/handlers/web.py
new file mode 100644
index 00000000..5cb438c1
--- /dev/null
+++ b/src/ahriman/application/handlers/web.py
@@ -0,0 +1,43 @@
+#
+# Copyright (c) 2021 Evgenii Alekseev.
+#
+# This file is part of ahriman
+# (see https://github.com/arcan1s/ahriman).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+import argparse
+
+from typing import Type
+
+from ahriman.application.handlers.handler import Handler
+from ahriman.core.configuration import Configuration
+
+
+class Web(Handler):
+    '''
+    web server handler
+    '''
+
+    @classmethod
+    def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
+        '''
+        callback for command line
+        :param args: command line args
+        :param architecture: repository architecture
+        :param config: configuration instance
+        '''
+        from ahriman.web.web import run_server, setup_service
+        application = setup_service(architecture, config)
+        run_server(application, architecture)