diff --git a/src/parch-profiler/pckmng/__init__.py b/src/parch-profiler/pckmng/__init__.py
index 6ecfb2e..c453f0b 100644
--- a/src/parch-profiler/pckmng/__init__.py
+++ b/src/parch-profiler/pckmng/__init__.py
@@ -1,6 +1,6 @@
 from typing import Dict, Type, List
 
-from .base import PackageConfig, PackageManager
+from .base import PackageConfig, PackageManager, PACKAGES
 
 from .pacman import PacmanConf, Pacman
 from .aur    import ParuConf, Paru
@@ -11,7 +11,7 @@ except:
     pass  # TODO:  write a log for flatpak
 
 
-package_managers = {
+_package_managers = {
     pckmng.__class__.__name__.lower() : pckmng for pckmng in [
         Pacman(),
         Paru(),
@@ -20,14 +20,17 @@ package_managers = {
 }
 
 
-def pckmng_gen(*pckmng_names: str) -> Dict[str, Type[PackageConfig]]:
+def package_manager(name: str) -> PackageManager:
+    return _package_managers[name]
+
+
+def pckmng_gen(*packages: str) -> PACKAGES:
     return {
-        pm : package_managers[pm].list() for pm in pckmng_names
+        name : package_manager(name).list() for name in packages
     }
 
 
-def pckmng_ins(package_list: List[PackageConfig]):
-    for package in package_list:
-        pass
-
-
+def pckmng_ins(packages: PACKAGES):
+    for name, config in packages.items():
+        pc: PackageManager = package_manager(name)
+        pc.install(config)
diff --git a/src/parch-profiler/pckmng/aur.py b/src/parch-profiler/pckmng/aur.py
index 21f91ae..0f03a98 100644
--- a/src/parch-profiler/pckmng/aur.py
+++ b/src/parch-profiler/pckmng/aur.py
@@ -4,16 +4,22 @@ from .base import PackageConfig, PackageManager
 
 
 class ParuConf(PackageConfig):
-    pm: str = 'paru'
+    pass
+
+
+# command
+install_pck = paru["-S", "--noconfirm"]
+list_pck = paru["-Qmq"]
 
 
 class Paru(PackageManager):
     pckconf: ParuConf = ParuConf
 
-    def install(self):
-        cmd = sudo[paru["-S", "--noconfirm", self.pckconf.packages]]
-        cmd()
+    def install(self, pckconf: ParuConf):
+        cmd = install_pck[pckconf.packages]
+        return cmd()
 
-    def list(self):
-        cmd = paru["-Qmq"]
-        return ParuConf(packages=cmd().splitlines())
+    @classmethod
+    def list(cls):
+        cmd = list_pck
+        return cls.pckconf(packages=cmd().splitlines())
diff --git a/src/parch-profiler/pckmng/base.py b/src/parch-profiler/pckmng/base.py
index da0e85b..ef0ad83 100644
--- a/src/parch-profiler/pckmng/base.py
+++ b/src/parch-profiler/pckmng/base.py
@@ -1,23 +1,26 @@
-from typing import Type, List
+from typing import Type, List, NewType, Dict
 from abc import ABC, abstractmethod
 from pydantic import BaseModel
 
 
 class PackageConfig(BaseModel):
-    packages: List[str]
+    packages: List[str] = []
 
 
 class PackageManager(ABC):
     pckconf: Type[PackageConfig] = None
 
-    # def __init__(self, pckconf: PackageConfig):
-    #     if isinstance(pckconf, self.pckconf):
-    #         self.pckconf = pckconf
+    def __init__(self):
+        pass
 
     @abstractmethod
-    def install(self):
+    def install(self, packages: PackageConfig):
         raise NotImplemented()
 
-    @property
-    def list(self):
+    @classmethod
+    @abstractmethod
+    def list(cls) -> PackageConfig:
         raise NotImplemented()
+
+
+PACKAGES = NewType("PACKAGES", Dict[str, PackageConfig])
diff --git a/src/parch-profiler/pckmng/flatpak.py b/src/parch-profiler/pckmng/flatpak.py
index 6acdd11..71abc03 100644
--- a/src/parch-profiler/pckmng/flatpak.py
+++ b/src/parch-profiler/pckmng/flatpak.py
@@ -7,14 +7,20 @@ class FlatpakConf(PackageConfig):
     pass
 
 
+# commands
+install_pck = flatpak["install", "-y"]
+list_pck = flatpak["list", "--app", "--columns=application"]
+
+
 class Flatpak(PackageManager):
     pckconf: FlatpakConf = FlatpakConf
 
     def install(self):
-        cmd = flatpak["install", "-y", self.pckconf.packages]
+        cmd = install_pck[self.pckconf.packages]
         return cmd()
 
-    def list(self):
-        cmd = flatpak["list", "--app", "--columns=application"]
-        return FlatpakConf(packages=cmd().splitlines())
+    @classmethod
+    def list(cls):
+        cmd = list_pck
+        return cls.pckconf(packages=cmd().splitlines())
 
diff --git a/src/parch-profiler/pckmng/pacman.py b/src/parch-profiler/pckmng/pacman.py
index 84c47fa..954c369 100644
--- a/src/parch-profiler/pckmng/pacman.py
+++ b/src/parch-profiler/pckmng/pacman.py
@@ -7,13 +7,19 @@ class PacmanConf(PackageConfig):
     pass
 
 
+# commands
+install_pck = sudo[pacman["-S", "--noconfirm"]]
+list_pck = pacman["-Qeq"]
+
+
 class Pacman(PackageManager):
     pckconf: PacmanConf = PacmanConf
 
-    def install(self):
-        cmd = sudo[pacman["-S", "--noconfirm", self.pckconf.packages]]
-        cmd()
+    def install(self, pckconf: PacmanConf):
+        cmd = install_pck[pckconf.packages]
+        return cmd()
 
-    def list(self):
-        cmd = pacman["-Qeq"]
-        return PacmanConf(packages=cmd().splitlines())
+    @classmethod
+    def list(cls) -> PacmanConf:
+        cmd = list_pck
+        return cls.pckconf(packages=cmd().splitlines())
diff --git a/src/parch-profiler/profiler.py b/src/parch-profiler/profiler.py
index 0ef4204..25f18c7 100644
--- a/src/parch-profiler/profiler.py
+++ b/src/parch-profiler/profiler.py
@@ -1,19 +1,19 @@
-from typing import Dict
+from typing import Dict, Type
 
 from pydantic import BaseModel
 
-from pckmng import PackageConfig, pckmng_gen
+from pckmng import PackageConfig, pckmng_gen, pckmng_ins, PACKAGES
 
 
 class Config(BaseModel):
-    packages: Dict[str, PackageConfig]
+    packages: PACKAGES
 
 
 def install_config(conf: Config):
-    pass
+    pckmng_ins(conf.packages)
 
 
 def generate_config(*pm_names):
     return Config(
         packages=pckmng_gen(*pm_names)
-    ).model_dump()
+    )