diff --git a/cpl.workspace.json b/cpl.workspace.json
new file mode 100644
index 00000000..885653e9
--- /dev/null
+++ b/cpl.workspace.json
@@ -0,0 +1,11 @@
+{
+  "name": "cpl",
+  "projects": [
+    "src/cpl-core/cpl.project.json",
+    "src/cpl-cli/cpl.project.json"
+  ],
+  "defaultProject": "cpl-cli",
+  "scripts": {
+    "format": "black src"
+  }
+}
\ No newline at end of file
diff --git a/src/cpl-cli/cpl.project.json b/src/cpl-cli/cpl.project.json
new file mode 100644
index 00000000..36b88951
--- /dev/null
+++ b/src/cpl-cli/cpl.project.json
@@ -0,0 +1,21 @@
+{
+  "name": "cpl-cli",
+  "version": "0.1.0",
+  "type": "console",
+  "license": "MIT",
+  "author": "Sven Heidemann",
+  "description": "CLI for the CPL library",
+  "homepage": "",
+  "keywords": [],
+  "dependencies": {
+    "click": "~8.3.0"
+  },
+  "devDependencies": {
+    "black": "25.1.0"
+  },
+  "references": [
+    "../cpl/cpl.project.json"
+  ],
+  "main": "cpl/cli/main.py",
+  "directory": "cpl/cli"
+}
\ No newline at end of file
diff --git a/src/cpl-cli/cpl/cli/__init__.py b/src/cpl-cli/cpl/cli/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/cpl-cli/cpl/cli/cli.py b/src/cpl-cli/cpl/cli/cli.py
new file mode 100644
index 00000000..66d633fc
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/cli.py
@@ -0,0 +1,33 @@
+import click
+
+
+class AliasedGroup(click.Group):
+    def command(self, *args, **kwargs):
+        aliases = kwargs.pop("aliases", [])
+
+        def decorator(f):
+            cmd = super(AliasedGroup, self).command(*args, **kwargs)(f)
+
+            for alias in aliases:
+                self.add_command(cmd, alias)
+            return cmd
+
+        return decorator
+
+    def format_commands(self, ctx, formatter):
+        commands = []
+        seen = set()
+        for name, cmd in self.commands.items():
+            if cmd in seen:
+                continue
+            seen.add(cmd)
+            aliases = [a for a, c in self.commands.items() if c is cmd and a != name]
+            alias_text = f" (aliases: {', '.join(aliases)})" if aliases else ""
+            commands.append((name, f"{cmd.short_help or ''}{alias_text}"))
+
+        with formatter.section("Commands"):
+            formatter.write_dl(commands)
+
+
+@click.group(cls=AliasedGroup)
+def cli(): ...
diff --git a/src/cpl-cli/cpl/cli/command/__init__.py b/src/cpl-cli/cpl/cli/command/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/cpl-cli/cpl/cli/command/init.py b/src/cpl-cli/cpl/cli/command/init.py
new file mode 100644
index 00000000..ff4bc7cd
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/command/init.py
@@ -0,0 +1,86 @@
+from pathlib import Path
+
+import click
+
+from cpl.cli.const import PROJECT_TYPES, PROJECT_TYPES_SHORT
+from cpl.cli.model.project import Project
+from cpl.cli.model.workspace import Workspace
+from cpl.cli.utils.prompt import SmartChoice
+from cpl.core.console import Console
+
+
+@click.command("init")
+@click.argument("target", required=False)
+@click.argument("name", required=False)
+def init(target: str, name: str):
+    if target is None:
+        Console.write_line("CPL Init Wizard")
+        target = click.prompt(
+            "What do you want to initialize?",
+            type=SmartChoice(["workspace"] + PROJECT_TYPES, {"workspace": "ws"}),
+            show_choices=True,
+        )
+
+    if target in PROJECT_TYPES_SHORT:
+        target = [pt for pt in PROJECT_TYPES if pt.startswith(target)][0]
+
+    if target in ["workspace", "ws"]:
+        _init_workspace(name or click.prompt("Workspace name", default="my-workspace"))
+    elif target in PROJECT_TYPES:
+        _init_project(name or click.prompt("Project name", default=f"my-{target}"), target)
+    else:
+        Console.error(f"Unknown target '{target}'")
+        raise SystemExit(1)
+
+
+def _init_workspace(name: str):
+    path = Path("cpl.workspace.json")
+
+    if path.exists():
+        Console.write_line("workspace.json already exists.")
+        return
+
+    data = {
+        "name": name,
+        "projects": [],
+        "defaultProject": None,
+        "scripts": {},
+    }
+    workspace = Workspace.new("./", name)
+    workspace.save()
+
+    Console.write_line(f"Created workspace '{name}'")
+
+
+def _init_project(name: str, project_type: str):
+    project = Project.new("./", name, project_type)
+
+    path = Path("cpl.project.json")
+    if path.exists():
+        Console.write_line("cpl.project.json already exists.")
+        return
+
+    if not Path("src").exists():
+        project.directory = click.prompt(
+            "Project directory", type=click.Path(exists=True, file_okay=False), default="src"
+        )
+
+    if project_type in ["console", "web", "service"]:
+        project.main = click.prompt(
+            "Main executable", type=click.Path(exists=True, dir_okay=False), default="src/main.py"
+        )
+
+    project.save()
+
+    workspace_file = Path("../cpl.workspace.json")
+    if workspace_file.exists():
+        workspace = Workspace.from_file(workspace_file)
+
+        rel_path = str(Path.cwd().relative_to(workspace_file.parent))
+        if rel_path not in workspace.projects:
+            workspace.projects.append(rel_path)
+            workspace.save()
+
+        Console.write_line(f"Registered '{name}' in workspace.json")
+
+    Console.write_line(f"Created {project_type} project '{name}'")
diff --git a/src/cpl-cli/cpl/cli/command/install.py b/src/cpl-cli/cpl/cli/command/install.py
new file mode 100644
index 00000000..807b2c4f
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/command/install.py
@@ -0,0 +1,41 @@
+import subprocess
+from pathlib import Path
+
+import click
+
+from cpl.cli.cli import cli
+from cpl.cli.utils.pip import Pip
+from cpl.cli.utils.structure import resolve_project
+from cpl.core.console import Console
+
+
+@cli.command("install", aliases=["i"])
+@click.option(
+    "--path",
+    "project_path",
+    type=click.Path(file_okay=False, exists=False),
+    default=".",
+    help="Path to project directory",
+)
+@click.option("--name", "project_name", help="Project name (lookup via workspace)")
+@click.option("--dev", is_flag=True, help="Include dev dependencies")
+@click.option("--verbose", is_flag=True, help="Enable verbose output")
+def install(project_path: str, project_name: str, dev: bool, verbose: bool):
+    project = resolve_project(Path(project_path), project_name)
+    deps: dict = project.dependencies
+    if dev:
+        deps.update(project.dev_dependencies)
+
+    if not deps:
+        Console.error("No dependencies to install.")
+        return
+
+    Console.write_line(f"Installing dependencies for '{project.name}':")
+
+    for name, version in deps.items():
+        dep = Pip.normalize_dep(name, version)
+        Console.write_line(f"  -> {dep}")
+        try:
+            Pip.command(project_path, "install", dep, verbose=verbose)
+        except subprocess.CalledProcessError as e:
+            Console.error(f"Failed to install {dep}: exit code {e.returncode}")
diff --git a/src/cpl-cli/cpl/cli/command/uninstall.py b/src/cpl-cli/cpl/cli/command/uninstall.py
new file mode 100644
index 00000000..a2a7bfe1
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/command/uninstall.py
@@ -0,0 +1,39 @@
+import subprocess
+from pathlib import Path
+
+import click
+
+from cpl.cli.cli import cli
+from cpl.cli.utils.pip import Pip
+from cpl.cli.utils.structure import resolve_project
+from cpl.core.console import Console
+
+
+@cli.command("uninstall", aliases=["ui"])
+@click.argument("package", required=False)
+@click.option(
+    "--path",
+    "project_path",
+    type=click.Path(file_okay=False, exists=False),
+    default=".",
+    help="Path to project directory",
+)
+@click.option("--name", "project_name", help="Project name (lookup via workspace)")
+@click.option("--dev", is_flag=True, help="Include dev dependencies")
+@click.option("--verbose", is_flag=True, help="Enable verbose output")
+def uninstall(package: str, project_path: str, project_name: str, dev: bool, verbose: bool):
+    if package is None:
+        package = Console.read("Package name to uninstall: ").strip()
+
+    project = resolve_project(Path(project_path), project_name)
+    deps = project.dependencies if not dev else project.dev_dependencies
+
+    try:
+        Pip.command(project_path, "install", package, verbose=verbose)
+    except subprocess.CalledProcessError as e:
+        Console.error(f"Failed to uninstall {package}: exit code {e.returncode}")
+
+    if package in deps:
+        del deps[package]
+        project.save()
+        Console.write_line(f"Removed {package} from project dependencies.")
diff --git a/src/cpl-cli/cpl/cli/const.py b/src/cpl-cli/cpl/cli/const.py
new file mode 100644
index 00000000..a5810f03
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/const.py
@@ -0,0 +1,2 @@
+PROJECT_TYPES = ["console", "web", "library", "service"]
+PROJECT_TYPES_SHORT = [x[0] for x in PROJECT_TYPES]
diff --git a/src/cpl-cli/cpl/cli/main.py b/src/cpl-cli/cpl/cli/main.py
new file mode 100644
index 00000000..3d8f2bea
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/main.py
@@ -0,0 +1,66 @@
+import os
+from pathlib import Path
+
+from cpl.cli.cli import cli
+from cpl.cli.command.init import init
+from cpl.cli.command.install import install
+from cpl.cli.command.uninstall import uninstall
+from cpl.cli.model.workspace import Workspace
+from cpl.cli.utils.custom_command import script_command
+from cpl.core.configuration import Configuration
+
+
+def _load_workspace(path: str) -> Workspace | None:
+    path = Path(path)
+    if not path.exists() or path.is_dir():
+        return None
+
+    return Workspace.from_file(path)
+
+
+def _load_scripts():
+    for p in [
+        "./cpl.workspace.json",
+        "../cpl.workspace.json",
+        "../../cpl.workspace.json",
+    ]:
+        ws = _load_workspace(p)
+        if ws is None:
+            continue
+
+        Configuration.set("workspace_path", os.path.abspath(p))
+        return ws.scripts
+
+    return {}
+
+
+def prepare():
+    scripts = _load_scripts()
+    for name, command in scripts.items():
+        script_command(cli, name, command)
+
+
+def configure():
+    cli.add_command(init)
+    cli.add_command(install)
+    cli.add_command(uninstall)
+
+
+def main():
+    prepare()
+    configure()
+    cli()
+
+
+if __name__ == "__main__":
+    main()
+
+#         ((
+#         ( `)
+#         ; / ,
+#        /  \/
+#       /  |
+#      /  ~/
+#     / )  )   ~ edraft
+# ___// | /
+# `--'  \_~-,
diff --git a/src/cpl-cli/cpl/cli/model/__init__.py b/src/cpl-cli/cpl/cli/model/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/cpl-cli/cpl/cli/model/cpl_structure_model.py b/src/cpl-cli/cpl/cli/model/cpl_structure_model.py
new file mode 100644
index 00000000..c9aa02f4
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/model/cpl_structure_model.py
@@ -0,0 +1,131 @@
+import inspect
+import json
+from pathlib import Path
+from typing import Any, Dict, List, Optional, Type, TypeVar
+
+T = TypeVar("T", bound="CPLStructureModel")
+
+
+class CPLStructureModel:
+    def __init__(self, path: Optional[str] = None):
+        self._path = path
+
+    @property
+    def path(self) -> Optional[str]:
+        return self._path
+
+    @classmethod
+    def from_file(cls: Type[T], path: Path | str) -> T:
+        if isinstance(path, str):
+            path = Path(path)
+
+        with open(path, "r", encoding="utf-8") as f:
+            data = json.load(f)
+        return cls.from_json(data, path=path)
+
+    @classmethod
+    def from_json(cls: Type[T], data: Dict[str, Any], path: Optional[Path | str] = None) -> T:
+        if isinstance(path, str):
+            path = Path(path)
+
+        sig = inspect.signature(cls.__init__)
+        kwargs: Dict[str, Any] = {}
+        for name, param in list(sig.parameters.items())[1:]:
+            if name == "path":
+                kwargs[name] = path
+                continue
+
+            if name in data:
+                kwargs[name] = data[name]
+                continue
+
+            priv = "_" + name
+            if priv in data:
+                kwargs[name] = data[priv]
+                continue
+
+            camel = _self_or_cls_snake_to_camel(name)
+            if camel in data:
+                kwargs[name] = data[camel]
+                continue
+
+            if param.default is not inspect._empty:
+                kwargs[name] = param.default
+                continue
+
+            raise KeyError(f"Missing required field '{name}' for {cls.__name__}.")
+
+        return cls(**kwargs)
+
+    def to_json(self) -> Dict[str, Any]:
+        result: Dict[str, Any] = {}
+        for key, value in self.__dict__.items():
+            if not key.startswith("_") or key == "_path":
+                continue
+            out_key = _self_or_cls_snake_to_camel(key[1:])
+            result[out_key] = value
+        return result
+
+    def save(self):
+        if not self._path:
+            raise ValueError("Cannot save model without a path.")
+
+        with open(self._path, "w", encoding="utf-8") as f:
+            json.dump(self.to_json(), f, indent=2)
+
+    @staticmethod
+    def _require_str(value, field: str, allow_empty: bool = True) -> str:
+        if not isinstance(value, str):
+            raise TypeError(f"{field} must be of type str")
+        if not allow_empty and not value.strip():
+            raise ValueError(f"{field} must not be empty")
+        return value
+
+    @staticmethod
+    def _require_optional_non_empty_str(value, field: str) -> Optional[str]:
+        if value is None:
+            return None
+        if not isinstance(value, str):
+            raise TypeError(f"{field} must be str or None")
+        s = value.strip()
+        if not s:
+            raise ValueError(f"{field} must not be empty when set")
+        return s
+
+    @staticmethod
+    def _require_list_of_str(value, field: str) -> List[str]:
+        if not isinstance(value, list):
+            raise TypeError(f"{field} must be a list")
+        out: List[str] = []
+        for i, v in enumerate(value):
+            if not isinstance(v, str):
+                raise TypeError(f"{field}[{i}] must be of type str")
+            s = v.strip()
+            if s:
+                out.append(s)
+
+        seen = set()
+        uniq: List[str] = []
+        for s in out:
+            if s not in seen:
+                seen.add(s)
+                uniq.append(s)
+        return uniq
+
+    @staticmethod
+    def _require_dict_str_str(value, field: str) -> Dict[str, str]:
+        if not isinstance(value, dict):
+            raise TypeError(f"{field} must be a dict")
+        out: Dict[str, str] = {}
+        for k, v in value.items():
+            if not isinstance(k, str) or not k.strip():
+                raise TypeError(f"Keys in {field} must be non-empty strings")
+            if not isinstance(v, str) or not v.strip():
+                raise TypeError(f"Values in {field} must be non-empty strings")
+            out[k.strip()] = v.strip()
+        return out
+
+
+def _self_or_cls_snake_to_camel(s: str) -> str:
+    parts = s.split("_")
+    return parts[0] + "".join(p[:1].upper() + p[1:] for p in parts[1:])
diff --git a/src/cpl-cli/cpl/cli/model/project.py b/src/cpl-cli/cpl/cli/model/project.py
new file mode 100644
index 00000000..1944a48f
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/model/project.py
@@ -0,0 +1,178 @@
+import re
+from typing import Optional, List, Dict
+from urllib.parse import urlparse
+
+from cpl.cli.model.cpl_structure_model import CPLStructureModel
+
+
+class Project(CPLStructureModel):
+    _ALLOWED_TYPES = {"application", "library"}
+    _SEMVER_RE = re.compile(r"^\d+\.\d+\.\d+(?:[-+][0-9A-Za-z.-]+)?$")
+
+    @staticmethod
+    def new(path: str, name: str, project_type: str) -> "Project":
+        return Project(
+            path,
+            name,
+            "0.1.0",
+            project_type,
+            "",
+            "",
+            "",
+            "",
+            [],
+            {},
+            {},
+            [],
+            None,
+            "src",
+        )
+
+    def __init__(
+        self,
+        path: str,
+        name: str,
+        version: str,
+        type: str,
+        license: str,
+        author: str,
+        description: str,
+        homepage: str,
+        keywords: List[str],
+        dependencies: Dict[str, str],
+        dev_dependencies: Dict[str, str],
+        references: List[str],
+        main: Optional[str],
+        directory: str,
+    ):
+        CPLStructureModel.__init__(self, path)
+
+        self._name = name
+        self._version = version
+        self._type = type
+        self._license = license
+        self._author = author
+        self._description = description
+        self._homepage = homepage
+        self._keywords = keywords
+        self._dependencies = dependencies
+        self._dev_dependencies = dev_dependencies
+        self._references = references
+        self._main = main
+        self._directory = directory
+
+    @property
+    def name(self) -> str:
+        return self._name
+
+    @name.setter
+    def name(self, value: str):
+        self._name = self._require_str(value, "name", allow_empty=False).strip()
+
+    @property
+    def version(self) -> str:
+        return self._version
+
+    @version.setter
+    def version(self, value: str):
+        value = self._require_str(value, "version", allow_empty=False).strip()
+        if not self._SEMVER_RE.match(value):
+            raise ValueError("version must follow SemVer X.Y.Z (optionally with -/+)")
+        self._version = value
+
+    @property
+    def type(self) -> str:
+        return self._type
+
+    @type.setter
+    def type(self, value: str):
+        value = self._require_str(value, "type", allow_empty=False).strip()
+        if value not in self._ALLOWED_TYPES:
+            allowed = ", ".join(sorted(self._ALLOWED_TYPES))
+            raise ValueError(f"type must be one of: {allowed}")
+        self._type = value
+
+    @property
+    def license(self) -> str:
+        return self._license
+
+    @license.setter
+    def license(self, value: str):
+        self._license = self._require_str(value, "license", allow_empty=True).strip()
+
+    @property
+    def author(self) -> str:
+        return self._author
+
+    @author.setter
+    def author(self, value: str):
+        self._author = self._require_str(value, "author", allow_empty=True).strip()
+
+    @property
+    def description(self) -> str:
+        return self._description
+
+    @description.setter
+    def description(self, value: str):
+        self._description = self._require_str(value, "description", allow_empty=True).strip()
+
+    @property
+    def homepage(self) -> str:
+        return self._homepage
+
+    @homepage.setter
+    def homepage(self, value: str):
+        value = self._require_str(value, "homepage", allow_empty=True).strip()
+        if value:
+            parsed = urlparse(value)
+            if parsed.scheme not in ("http", "https") or not parsed.netloc:
+                raise ValueError("homepage must be a valid http/https URL")
+        self._homepage = value
+
+    @property
+    def keywords(self) -> List[str]:
+        return self._keywords
+
+    @keywords.setter
+    def keywords(self, value: List[str]):
+        self._keywords = self._require_list_of_str(value, "keywords")
+
+    @property
+    def dependencies(self) -> Dict[str, str]:
+        return self._dependencies
+
+    @dependencies.setter
+    def dependencies(self, value: Dict[str, str]):
+        self._dependencies = self._require_dict_str_str(value, "dependencies")
+
+    @property
+    def dev_dependencies(self) -> Dict[str, str]:
+        return self._dev_dependencies
+
+    @dev_dependencies.setter
+    def dev_dependencies(self, value: Dict[str, str]):
+        self._dev_dependencies = self._require_dict_str_str(value, "devDependencies")
+
+    @property
+    def references(self) -> List[str]:
+        return self._references
+
+    @references.setter
+    def references(self, value: List[str]):
+        self._references = self._require_list_of_str(value, "references")
+
+    @property
+    def main(self) -> Optional[str]:
+        return self._main
+
+    @main.setter
+    def main(self, value: Optional[str]):
+        self._main = self._require_optional_non_empty_str(value, "main")
+
+    @property
+    def directory(self) -> str:
+        return self._directory
+
+    @directory.setter
+    def directory(self, value: str):
+        self._directory = self._require_str(value, "directory", allow_empty=False).strip()
diff --git a/src/cpl-cli/cpl/cli/model/workspace.py b/src/cpl-cli/cpl/cli/model/workspace.py
new file mode 100644
index 00000000..842ec47c
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/model/workspace.py
@@ -0,0 +1,62 @@
+from typing import Optional, List, Dict
+
+from cpl.cli.model.cpl_structure_model import CPLStructureModel
+
+
+class Workspace(CPLStructureModel):
+    @staticmethod
+    def new(path: str, name: str) -> "Workspace":
+        return Workspace(
+            path=path,
+            name=name,
+            projects=[],
+            default_project=None,
+            scripts={},
+        )
+
+    def __init__(
+        self,
+        path: str,
+        name: str,
+        projects: List[str],
+        default_project: Optional[str],
+        scripts: Dict[str, str],
+    ):
+        CPLStructureModel.__init__(self, path)
+
+        self._name = name
+        self._projects = projects
+        self._default_project = default_project
+        self._scripts = scripts
+
+    @property
+    def name(self) -> str:
+        return self._name
+
+    @name.setter
+    def name(self, value: str):
+        self._name = self._require_str(value, "name", allow_empty=False).strip()
+
+    @property
+    def projects(self) -> List[str]:
+        return self._projects
+
+    @projects.setter
+    def projects(self, value: List[str]):
+        self._projects = self._require_list_of_str(value, "projects")
+
+    @property
+    def default_project(self) -> Optional[str]:
+        return self._default_project
+
+    @default_project.setter
+    def default_project(self, value: Optional[str]):
+        self._default_project = self._require_optional_non_empty_str(value, "defaultProject")
+
+    @property
+    def scripts(self) -> Dict[str, str]:
+        return self._scripts
+
+    @scripts.setter
+    def scripts(self, value: Dict[str, str]):
+        self._scripts = self._require_dict_str_str(value, "scripts")
diff --git a/src/cpl-cli/cpl/cli/utils/__init__.py b/src/cpl-cli/cpl/cli/utils/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/cpl-cli/cpl/cli/utils/custom_command.py b/src/cpl-cli/cpl/cli/utils/custom_command.py
new file mode 100644
index 00000000..866fd186
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/utils/custom_command.py
@@ -0,0 +1,18 @@
+import subprocess
+
+import click
+
+
+def script_command(cli_group, name, command):
+
+    @cli_group.command(name)
+    @click.argument("args", nargs=-1)
+    def _run_script(args):
+        click.echo(f"Running script: {name}")
+        try:
+            cmd = command.split() + list(args)
+            subprocess.run(cmd, check=True)
+        except subprocess.CalledProcessError as e:
+            click.echo(f"Script '{name}' failed with exit code {e.returncode}", err=True)
+        except FileNotFoundError:
+            click.echo(f"Command not found: {command.split()[0]}", err=True)
diff --git a/src/cpl-cli/cpl/cli/utils/json.py b/src/cpl-cli/cpl/cli/utils/json.py
new file mode 100644
index 00000000..f39e0400
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/utils/json.py
@@ -0,0 +1,14 @@
+import json
+from pathlib import Path
+
+
+def load_project_json(path: Path) -> dict:
+    if not path.exists():
+        return {}
+    with open(path, "r", encoding="utf-8") as f:
+        return json.load(f)
+
+
+def save_project_json(path: Path, data: dict):
+    with open(path, "w", encoding="utf-8") as f:
+        json.dump(data, f, indent=2, ensure_ascii=False)
diff --git a/src/cpl-cli/cpl/cli/utils/pip.py b/src/cpl-cli/cpl/cli/utils/pip.py
new file mode 100644
index 00000000..5c51dd16
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/utils/pip.py
@@ -0,0 +1,50 @@
+import subprocess
+from pathlib import Path
+
+from cpl.cli.utils.venv import ensure_venv, get_venv_pip
+from cpl.core.console import Console
+
+
+class Pip:
+
+    @staticmethod
+    def normalize_dep(name: str, raw: str) -> str:
+        raw = raw.strip()
+        if not raw:
+            return name
+
+        table = {
+            "!": "!=",
+            ">": ">=",
+            ">>": ">",
+            "<": "<=",
+            "<<": "<",
+            "~": "~=",
+            "=": "===",
+        }
+
+        op = "=="
+        for prefix, pip_op in table.items():
+            if raw.startswith(prefix):
+                op = pip_op
+                raw = raw[len(prefix) :]
+                break
+
+        return f"{name}{op}{raw}"
+
+    @staticmethod
+    def command(project_path: str, command: str, *args,verbose:bool=False):
+        venv_path = ensure_venv(Path(project_path))
+        pip = get_venv_pip(venv_path)
+
+        if verbose:
+            Console.write_line()
+
+        subprocess.run(
+            f"{pip} {command} {''.join(args)}",
+            shell=True,
+            check=True,
+            stdin=subprocess.DEVNULL if not verbose else None,
+            stdout=subprocess.DEVNULL if not verbose else None,
+            stderr=subprocess.STDOUT if not verbose else None,
+        )
\ No newline at end of file
diff --git a/src/cpl-cli/cpl/cli/utils/prompt.py b/src/cpl-cli/cpl/cli/utils/prompt.py
new file mode 100644
index 00000000..e90e7708
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/utils/prompt.py
@@ -0,0 +1,20 @@
+import click
+
+
+class SmartChoice(click.Choice):
+
+    def __init__(self, choices: list, aliases: dict = None):
+        click.Choice.__init__(self, choices, case_sensitive=False)
+
+        self._aliases = {c: c[0].lower() for c in choices if len(c) > 0}
+        if aliases:
+            self._aliases.update({k: v.lower() for k, v in aliases.items()})
+
+        if any([x[0].lower in self._aliases for x in choices if len(x) > 1]):
+            raise ValueError("Alias conflict with first letters of choices")
+
+    def convert(self, value, param, ctx):
+        val_lower = value.lower()
+        if val_lower in self._aliases.values():
+            value = [k for k, v in self._aliases.items() if v == val_lower][0]
+        return super().convert(value, param, ctx)
diff --git a/src/cpl-cli/cpl/cli/utils/structure.py b/src/cpl-cli/cpl/cli/utils/structure.py
new file mode 100644
index 00000000..17266631
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/utils/structure.py
@@ -0,0 +1,30 @@
+import json
+from pathlib import Path
+
+from cpl.cli.model.project import Project
+from cpl.cli.model.workspace import Workspace
+from cpl.core.console import Console
+
+
+def resolve_project(path: Path, name: str | None) -> Project:
+    project_file = path / "cpl.project.json"
+    if project_file.exists():
+        return Project.from_file(project_file)
+
+    workspace_file = path / "cpl.workspace.json"
+    if workspace_file.exists():
+        workspace = Workspace.from_file(workspace_file)
+        if name:
+            for p in workspace.projects:
+                project = Project.from_file(p)
+                if project.name == name:
+                    return project
+
+        elif workspace.default_project:
+            for p in workspace.projects:
+                project = Project.from_file(p)
+                if project.name == workspace.default_project:
+                    return project
+
+    Console.error(f"Could not find project file '{path}'")
+    exit(1)
diff --git a/src/cpl-cli/cpl/cli/utils/venv.py b/src/cpl-cli/cpl/cli/utils/venv.py
new file mode 100644
index 00000000..b34b84f7
--- /dev/null
+++ b/src/cpl-cli/cpl/cli/utils/venv.py
@@ -0,0 +1,44 @@
+import os
+import sys
+import venv
+from pathlib import Path
+
+from cpl.core.configuration import Configuration
+from cpl.core.console import Console
+
+
+def ensure_venv(start_path: Path | None = None) -> Path:
+    start_path = start_path or Path.cwd()
+    workspace_path = Configuration.get("workspace_path")
+
+    if workspace_path is not None:
+        workspace_path = Path(os.path.dirname(workspace_path))
+
+        ws_venv = workspace_path / ".venv"
+        if ws_venv.exists():
+            return ws_venv
+
+    for parent in [start_path, *start_path.parents]:
+        venv_path = parent / ".venv"
+        if venv_path.exists():
+            return venv_path
+
+    if workspace_path is not None:
+        venv_path = workspace_path / ".venv"
+    else:
+        venv_path = start_path / ".venv"
+
+    Console.write_line(f"Creating virtual environment at {venv_path}...")
+    venv.EnvBuilder(with_pip=True).create(venv_path)
+    return venv_path
+
+
+def get_venv_python(venv_path: Path) -> Path:
+    if sys.platform == "win32":
+        return venv_path / "Scripts" / "python.exe"
+    return venv_path / "bin" / "python"
+
+
+def get_venv_pip(venv_path: Path) -> str:
+    python_exe = get_venv_python(venv_path)
+    return f"{python_exe} -m pip"
diff --git a/src/cpl-cli/pyproject.toml b/src/cpl-cli/pyproject.toml
new file mode 100644
index 00000000..afbbe062
--- /dev/null
+++ b/src/cpl-cli/pyproject.toml
@@ -0,0 +1,29 @@
+[build-system]
+requires = ["setuptools>=70.1.0", "wheel>=0.43.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "cpl-cli"
+version = "2024.7.0"
+description = "CPL cli"
+readme = "CPL cli package"
+requires-python = ">=3.12"
+license = "MIT"
+authors = [
+    { name = "Sven Heidemann", email = "sven.heidemann@sh-edraft.de" }
+]
+keywords = ["cpl", "cli", "backend", "shared", "library"]
+
+dynamic = ["dependencies", "optional-dependencies"]
+
+[project.urls]
+Homepage = "https://www.sh-edraft.de"
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["cpl*"]
+
+[tool.setuptools.dynamic]
+dependencies = { file = ["requirements.txt"] }
+optional-dependencies.dev = { file = ["requirements.dev.txt"] }
+
diff --git a/src/cpl-cli/requirements.dev.txt b/src/cpl-cli/requirements.dev.txt
new file mode 100644
index 00000000..e7664b42
--- /dev/null
+++ b/src/cpl-cli/requirements.dev.txt
@@ -0,0 +1 @@
+black==25.1.0
\ No newline at end of file
diff --git a/src/cpl-cli/requirements.txt b/src/cpl-cli/requirements.txt
new file mode 100644
index 00000000..a8244b30
--- /dev/null
+++ b/src/cpl-cli/requirements.txt
@@ -0,0 +1 @@
+cpl-core
\ No newline at end of file
diff --git a/src/cpl-core/cpl.project.json b/src/cpl-core/cpl.project.json
new file mode 100644
index 00000000..66ebca33
--- /dev/null
+++ b/src/cpl-core/cpl.project.json
@@ -0,0 +1,24 @@
+{
+  "name": "cpl-core",
+  "version": "0.1.0",
+  "type": "library",
+  "license": "MIT",
+  "author": "Sven Heidemann",
+  "description": "CLI for the CPL library",
+  "homepage": "",
+  "keywords": [],
+  "dependencies": {
+    "art": "~6.5",
+    "colorama": "~0.4.6",
+    "tabulate": "~0.9.0",
+    "termcolor": "~3.1.0",
+    "pynput": "~1.8.1",
+    "croniter": "~6.0.0"
+  },
+  "devDependencies": {
+    "black": "25.1.0"
+  },
+  "references": [],
+  "main": null,
+  "directory": "cpl/core"
+}
\ No newline at end of file