diff --git a/.forgejo/workflows/main.yaml b/.forgejo/workflows/main.yaml
new file mode 100644
index 0000000..bcc505a
--- /dev/null
+++ b/.forgejo/workflows/main.yaml
@@ -0,0 +1,18 @@
+on: [push]
+jobs:
+  job:
+    container:
+      image: ${{vars.DOCKER}}debian:bookworm
+    steps:
+    - name: spcd
+      env:
+        SPCD: ${{vars.SPCD}}
+        SPCD_SSH_HOSTS: ${{vars.SPCD_SSH_HOSTS}}
+        SPCD_SSH_KEY: ${{secrets.SPCD_SSH_KEY}}
+        SPCD_TXT_LOCALE: ${{vars.SPCD_TXT_LOCALE}}
+      run: ${{vars.SPCD}}
+
+    #- run: spcd-check-project
+    - run: spcd-build-project
+    - run: spcd-browse-workspace
+    - run: spcd-synchronize
diff --git a/build.py b/build.py
new file mode 100755
index 0000000..3a0a957
--- /dev/null
+++ b/build.py
@@ -0,0 +1,11 @@
+#! /usr/bin/env python3
+"""Dummy build."""
+
+from pathlib import Path
+
+from rwx.fs import make_directory, write
+
+if __name__ == "__main__":
+    out = Path(__file__).parent / "out" / "web"
+    make_directory(out)
+    write(out / "index.html", "rwx.rwx.work")
diff --git a/pyproject.toml b/pyproject.toml
index 66a3933..1d231ec 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ keywords = []
 license-files = { paths = ["license.md"] }
 name = "rwx"
 readme = "readme.md"
-requires-python = ">= 3.10"
+requires-python = ">= 3.11"
 
 [project.scripts]
 # command = "package.module:function"
@@ -31,6 +31,12 @@ requires-python = ">= 3.10"
 [tool.hatch.version]
 path = "rwx/__init__.py"
 
+[tool.pydoclint]
+allow-init-docstring = true
+quiet = true
+skip-checking-short-docstrings = false
+style = "sphinx"
+
 [tool.ruff]
 line-length = 80
 
diff --git a/readme.fr.rst b/readme.fr.rst
deleted file mode 100644
index c8e6491..0000000
--- a/readme.fr.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-******************
-Read Write eXecute
-******************
-
-`English <readme.rst>`_ | `Français <readme.fr.rst>`_
-
-Français
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..e2beac8
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,61 @@
+# Read Write eXecute
+
+A tiny framework to read, write & execute things.
+
+---
+
+## Why
+
+---
+
+## How
+
+---
+
+## What
+
+---
+
+## Who
+
+### By
+
+* [Marc Beninca](https://marc.beninca.link)
+
+### For
+
+* myself
+
+---
+
+## Where
+
+### Chat
+
+* [Discord](https://discord.com/channels/983145051985154108/1255894474895134761)
+* [IRC](ircs://irc.libera.chat/##rwx)
+
+### Forge
+
+* [Repository](https://forge.rwx.work/rwx.work/rwx)
+* [RSS](https://forge.rwx.work/rwx.work/rwx.rss)
+* [Workflows](https://forge.rwx.work/rwx.work/rwx/actions)
+
+### Deployment
+
+* [Site](https://rwx.rwx.work)
+
+---
+
+## When
+
+### Task stack
+
+* character constants for box drawing
+* common __str__ function
+* parse pyproject.toml to write commands
+* write classes for
+  * steps bars to log
+  * system commands to run
+    * with single call of subprocess.run
+    * or alternate subprocess method?
diff --git a/readme.rst b/readme.rst
deleted file mode 100644
index 954b375..0000000
--- a/readme.rst
+++ /dev/null
@@ -1,8 +0,0 @@
-Read Write eXecute
-==================
-
-`English <https://doc.rwx.work>`_
----------------------------------
-
-`Français <https://doc.rwx.work>`_
-----------------------------------
diff --git a/rwx/__init__.py b/rwx/__init__.py
index a1c5ee6..50c7cbe 100644
--- a/rwx/__init__.py
+++ b/rwx/__init__.py
@@ -1,3 +1,33 @@
 """Read Write eXecute."""
 
 __version__ = "0.0.1"
+
+from os import linesep
+
+
+class Class:
+    """Root class."""
+
+    def __repr__(self) -> str:
+        """Return machine-readable state.
+
+        :return: state
+        :rtype: str
+        """
+        name = self.__class__.__name__
+        attributes = [
+            f"{k}={v!r}" for k, v in vars(self).items() if not k.startswith("_")
+        ]
+        arguments = ", ".join(attributes)
+        return f"{name}({arguments})"
+
+    def __str__(self) -> str:
+        """Return human-readable state.
+
+        :return: state
+        :rtype: str
+        """
+        attributes = [
+            f"{k} = {v}" for k, v in vars(self).items() if not k.startswith("_")
+        ]
+        return linesep.join(attributes)
diff --git a/rwx/__main__.py b/rwx/__main__.py
index f6276e4..e19dea1 100755
--- a/rwx/__main__.py
+++ b/rwx/__main__.py
@@ -4,12 +4,12 @@
 
 from pathlib import Path
 
-import fs
+from rwx import fs
 
 if __name__ == "__main__":
-    file_path = Path(__file__).resolve()
-    root_path = file_path.parent
-    directory_path = root_path / "tmp"
+    file_path: Path = Path(__file__).resolve()
+    root_path: Path = file_path.parent
+    directory_path: Path = root_path / "tmp"
     file_path = directory_path / "file"
 
     fs.wipe(directory_path)
diff --git a/rwx/arg/__init__.py b/rwx/arg/__init__.py
index aa6e4b8..a35dd4f 100644
--- a/rwx/arg/__init__.py
+++ b/rwx/arg/__init__.py
@@ -1,6 +1,13 @@
+"""Handle system arguments."""
+
 import sys
 
 
 def split() -> tuple[str, list[str]]:
+    """Split command & actual arguments.
+
+    :return: both
+    :rtype: tuple[str, list[str]]
+    """
     command, *arguments = sys.argv
     return command, arguments
diff --git a/rwx/cmd/__init__.py b/rwx/cmd/__init__.py
index de764fa..be9e540 100644
--- a/rwx/cmd/__init__.py
+++ b/rwx/cmd/__init__.py
@@ -1,8 +1,16 @@
+"""Handle system commands & packages."""
+
 commands: list[str] = []
 packages: list[str] = []
 
 
 def need(command: str) -> None:
+    """Assert package dependency for a command.
+
+    :param command: name of the requested command
+    :type command: str
+    """
+    package: str | None
     match command:
         case "debootstrap":
             package = "debootstrap"
diff --git a/rwx/cmd/squashfs/__init__.py b/rwx/cmd/squashfs/__init__.py
index 322186c..b3ec864 100644
--- a/rwx/cmd/squashfs/__init__.py
+++ b/rwx/cmd/squashfs/__init__.py
@@ -1,19 +1,26 @@
-import ps
+"""Wrap SquashFS commands."""
 
-import rwx.cmd
+from pathlib import Path
 
-rwx.cmd.need("mksquashfs")
+from rwx import cmd, ps
+
+cmd.need("mksquashfs")
 
 
-def mksquashfs(input_root: str, output_file: str):
+def mksquashfs(input_root: Path, output_file: Path) -> None:
+    """Make a SquashFS bootable image file.
+
+    :param input_root: ?
+    :type input_root: Path
+    :param output_file: ?
+    :type output_file: Path
+    """
     ps.run(
-        [
-            "mksquashfs",
-            input_root,
-            output_file,
-            "-comp",
-            "zstd",
-            "-Xcompression-level",
-            str(18),
-        ]
+        "mksquashfs",
+        str(input_root),
+        str(output_file),
+        "-comp",
+        "zstd",
+        "-Xcompression-level",
+        str(18),
     )
diff --git a/rwx/deb/__init__.py b/rwx/deb/__init__.py
index e9c6a9e..2537321 100644
--- a/rwx/deb/__init__.py
+++ b/rwx/deb/__init__.py
@@ -1,6 +1,8 @@
-import cmd
+"""Wrap Debian commands."""
 
-import ps
+from pathlib import Path
+
+from rwx import cmd, ps
 
 cmd.need("debootstrap")
 
@@ -8,13 +10,22 @@ BOOTSTRAP_ARCHITECTURE = "amd64"
 BOOTSTRAP_VARIANT = "minbase"
 
 
-def bootstrap(root_path: str, suite: str, mirror_location: str):
-    command = [
-        ("debootstrap",),
+def bootstrap(root_path: Path, suite: str, mirror_location: str) -> None:
+    """Boostrap a base operating filesystem.
+
+    :param root_path: target output path
+    :type root_path: Path
+    :param suite: target distribution name
+    :type suite: str
+    :param mirror_location: source input repository
+    :type mirror_location: str
+    """
+    command = (
+        "debootstrap",
         ("--arch", BOOTSTRAP_ARCHITECTURE),
         ("--variant", BOOTSTRAP_VARIANT),
-        (suite,),
-        (root_path,),
-        (mirror_location,),
-    ]
-    return ps.run(command)
+        suite,
+        str(root_path),
+        mirror_location,
+    )
+    ps.run(*command)
diff --git a/rwx/err/__init__.py b/rwx/err/__init__.py
index b996913..53a63c7 100644
--- a/rwx/err/__init__.py
+++ b/rwx/err/__init__.py
@@ -1,2 +1,7 @@
-class Exception(Exception):
-    pass
+"""Handle errors."""
+
+from rwx import Class
+
+
+class Error(Class, Exception):
+    """Parent class for all errors."""
diff --git a/rwx/fs/__init__.py b/rwx/fs/__init__.py
index e769358..205746d 100644
--- a/rwx/fs/__init__.py
+++ b/rwx/fs/__init__.py
@@ -1,70 +1,160 @@
+"""Operations involving FileSystems."""
+
 import os
 import shutil
+import tomllib
+from pathlib import Path
 
 from rwx import ps
 
 CHARSET = "UTF-8"
 
 
-def create_image(file_path: str, size_bytes: int):
+def create_image(file_path: Path, size_bytes: int) -> None:
+    """Create a virtual device image file.
+
+    :param file_path: target image file
+    :type file_path: Path
+    :param size_bytes: virtual volume
+    :type size_bytes: int
+    """
     ps.run(
         ("qemu-img", "create"),
         ("-f", "qcow2"),
-        (file_path, size_bytes),
+        (str(file_path), str(size_bytes)),
     )
 
 
-def empty_file(path: str):
+def empty_file(path: Path) -> None:
+    """Empty the file at provided path.
+
+    :param path: target file to empty
+    :type path: Path
+    """
     write(path, "")
 
 
-def get_mount_uuid(path: str):
+def get_mount_uuid(path: Path) -> str:
+    """Return the filesystem UUID of a mountpoint path.
+
+    :param path: mountpoint path
+    :type path: Path
+    :rtype: str
+    """
     return ps.run_line(
-        ("findmnt",),
-        ("--noheadings",),
+        "findmnt",
+        "--noheadings",
         ("--output", "UUID"),
-        (path,),
+        str(path),
     )
 
 
-def get_path_mount(path: str):
-    return ps.run_line(
-        ("stat",),
-        ("--format", "%m"),
-        (path,),
+def get_path_mount(path: Path) -> Path:
+    """Return the mountpoint path of an arbitrary path.
+
+    :param path: arbitrary path
+    :type path: Path
+    :rtype: Path
+    """
+    return Path(
+        ps.run_line(
+            "stat",
+            ("--format", "%m"),
+            str(path),
+        )
     )
 
 
-def get_path_uuid(path: str):
+def get_path_uuid(path: Path) -> str:
+    """Return the filesystem UUID of an arbitrary path.
+
+    :param path: arbitrary path
+    :type path: Path
+    :rtype: str
+    """
     return get_mount_uuid(get_path_mount(path))
 
 
-def make_directory(path: str):
-    os.makedirs(path, exist_ok=True)
+def make_directory(path: Path) -> None:
+    """Make a directory (and its parents) from a path.
+
+    :param path: directory to create
+    :type path: Path
+    """
+    path.mkdir(exist_ok=True, parents=True)
 
 
-def read_file(file_path: str):
-    with open(file_path, "br") as file_object:
+def read_file_bytes(file_path: Path) -> bytes:
+    """Read whole file bytes.
+
+    :param file_path: source input file
+    :type file_path: Path
+    :rtype: bytes
+    """
+    with file_path.open("br") as file_object:
         return file_object.read()
 
 
-def read_file_lines(file_path: str, charset=CHARSET):
-    return read_file_text(file_path).split(os.linesep)
+def read_file_dict(file_path: Path, charset: str = CHARSET) -> dict:
+    """Read whole file as toml object.
+
+    :param file_path: source input file
+    :type file_path: Path
+    :param charset: charset to use for decoding input
+    :type charset: str
+    :rtype: dict
+    """
+    text = read_file_text(file_path, charset)
+    return tomllib.loads(text)
 
 
-def read_file_text(file_path: str, charset=CHARSET):
-    return read_file(file_path).decode(charset)
+def read_file_lines(file_path: Path, charset: str = CHARSET) -> list[str]:
+    """Read whole file lines.
+
+    :param file_path: source input file
+    :type file_path: Path
+    :param charset: charset to use for decoding input
+    :type charset: str
+    :rtype: list[str]
+    """
+    return read_file_text(file_path, charset).split(os.linesep)
 
 
-def wipe(path: str):
+def read_file_text(file_path: Path, charset: str = CHARSET) -> str:
+    """Read whole file text.
+
+    :param file_path: source input file
+    :type file_path: Path
+    :param charset: charset to use for decoding input
+    :type charset: str
+    :rtype: str
+    """
+    return read_file_bytes(file_path).decode(charset)
+
+
+def wipe(path: Path) -> None:
+    """Wipe provided path, whether directory or file.
+
+    :param path: target path
+    :type path: Path
+    """
     try:
         shutil.rmtree(path)
     except NotADirectoryError:
-        os.remove(path)
+        path.unlink(missing_ok=True)
     except FileNotFoundError:
         pass
 
 
-def write(file_path: str, text: str, charset=CHARSET):
-    with open(file_path, "bw") as file_object:
-        file_object.write(text.encode(charset))
+def write(file_path: Path, text: str, charset: str = CHARSET) -> None:
+    """Write text into a file.
+
+    :param file_path: target file path
+    :type file_path: Path
+    :param text: content to write
+    :type text: str
+    :param charset: charset to use for encoding ouput
+    :type charset: str
+    """
+    with file_path.open(encoding=charset, mode="w") as file_object:
+        file_object.write(text)
diff --git a/rwx/grub/__init__.py b/rwx/grub/__init__.py
index cd016ab..572b13e 100644
--- a/rwx/grub/__init__.py
+++ b/rwx/grub/__init__.py
@@ -1,6 +1,6 @@
-import cmd
+"""Wrap GRUB commands."""
 
-import ps
+from rwx import cmd, ps
 
 cmd.need("grub-mkimage")
 
@@ -24,8 +24,21 @@ def make_image(
     memdisk_path: str,
     pubkey_path: str | None = None,
 ) -> None:
-    args = [
-        ("grub-mkimage",),
+    """Make a binary bootable image.
+
+    :param image_format: output format (x86_64-efi, i386-pc, arm64-efi)
+    :type image_format: str
+    :param image_path: output file
+    :type image_path: str
+    :param modules: modules to embed
+    :type modules: list[str]
+    :param memdisk_path: archive to include
+    :type memdisk_path: str
+    :param pubkey_path: extra public key to add
+    :type pubkey_path: str | None
+    """
+    args: list[str | tuple[str, ...]] = [
+        "grub-mkimage",
         ("--compress", COMPRESSION),
         ("--format", image_format),
         ("--output", image_path),
@@ -34,6 +47,6 @@ def make_image(
     if pubkey_path:
         args.append(("--pubkey", pubkey_path))
     args.extend(modules)
-    if modules := MODULES.get(image_format):
-        args.extend(modules)
+    if extra_modules := MODULES.get(image_format):
+        args.extend(extra_modules)
     ps.run(*args)
diff --git a/rwx/log/__init__.py b/rwx/log/__init__.py
index 50048e5..53cfebc 100644
--- a/rwx/log/__init__.py
+++ b/rwx/log/__init__.py
@@ -1,31 +1,50 @@
+"""Handle logging."""
+
 import logging
 import sys
 
 
 def get_file_logger(name: str) -> logging.Logger:
-    formatter = logging.Formatter(
-        "%(name)s: %(asctime)s | %(levelname)s | %(filename)s:%(lineno)s | %(process)d >>> %(message)s",
-    )
-    #
+    """Return a file logger.
+
+    :param name: arbitrary name
+    :type name: str
+    :rtype: logging.Logger
+    """
+    # formatter
+    items = [
+        "%(name)s: %(asctime)s",
+        "%(levelname)s",
+        "%(filename)s:%(lineno)s",
+        "%(process)d >>> %(message)s",
+    ]
+    template = " | ".join(items)
+    formatter = logging.Formatter(template)
+    # handler
     out_handler = logging.StreamHandler(stream=sys.stdout)
     out_handler.setFormatter(formatter)
     out_handler.setLevel(logging.INFO)
-    #
+    # logger
     logger = logging.getLogger(name)
     logger.addHandler(out_handler)
     logger.setLevel(logging.INFO)
-    #
     return logger
 
 
 def get_stream_logger(level: int) -> logging.Logger:
+    """Return a stream logger.
+
+    :param level: filtering level
+    :type level: int
+    :rtype: logging.Logger
+    """
+    # handler
     out_handler = logging.StreamHandler(stream=sys.stdout)
     out_handler.setLevel(level)
-    #
+    # logger
     logger = logging.getLogger()
     logger.addHandler(out_handler)
     logger.setLevel(level)
-    #
     return logger
 
 
diff --git a/rwx/os/__init__.py b/rwx/os/__init__.py
new file mode 100644
index 0000000..27c1748
--- /dev/null
+++ b/rwx/os/__init__.py
@@ -0,0 +1,20 @@
+"""Control Operating Systems."""
+
+from os import sep
+from pathlib import Path
+
+from .abstract import OS
+from .debian import Debian
+
+
+def from_path(path: Path) -> OS:
+    """Initialize from an already existing path.
+
+    :param path: source root directory
+    :type path: Path
+    :rtype: OS
+    """
+    return Debian(path)
+
+
+up = from_path(Path(sep))
diff --git a/rwx/os/abstract.py b/rwx/os/abstract.py
new file mode 100644
index 0000000..77f9cb1
--- /dev/null
+++ b/rwx/os/abstract.py
@@ -0,0 +1,26 @@
+"""Abstract Operating System."""
+
+from abc import ABC, abstractmethod
+from pathlib import Path
+
+from rwx import Class
+
+
+class OS(Class, ABC):
+    """Operating System."""
+
+    def __init__(self, path: Path) -> None:
+        """Set root.
+
+        :param path: root directory
+        :type path: Path
+        """
+        self.root = path
+        self.name = self.get_name()
+
+    @abstractmethod
+    def get_name(self) -> str:
+        """Return mandatory name.
+
+        :rtype: str
+        """
diff --git a/rwx/os/debian.py b/rwx/os/debian.py
new file mode 100644
index 0000000..5cefdaa
--- /dev/null
+++ b/rwx/os/debian.py
@@ -0,0 +1,14 @@
+"""Debian operating system."""
+
+from .abstract import OS
+
+
+class Debian(OS):
+    """Debian operating system."""
+
+    def get_name(self) -> str:
+        """Return name.
+
+        :rtype: str
+        """
+        return "Debian"
diff --git a/rwx/os/pm/__init__.py b/rwx/os/pm/__init__.py
new file mode 100644
index 0000000..c55179a
--- /dev/null
+++ b/rwx/os/pm/__init__.py
@@ -0,0 +1,29 @@
+"""Package Manager."""
+
+from abc import ABC, abstractmethod
+
+from rwx import Class
+from rwx.ps import Command
+
+
+class PM(Class, ABC):
+    """Package Manager."""
+
+    def __init__(self) -> None:
+        """Set commands."""
+        self.clean = self.get_clean_command()
+        self.install = self.get_install_command()
+
+    @abstractmethod
+    def get_clean_command(self) -> Command:
+        """Command to clean packages cache.
+
+        :rtype: Command
+        """
+
+    @abstractmethod
+    def get_install_command(self) -> Command:
+        """Command to install package(s).
+
+        :rtype: Command
+        """
diff --git a/rwx/os/pm/apt.py b/rwx/os/pm/apt.py
new file mode 100644
index 0000000..3e3cb81
--- /dev/null
+++ b/rwx/os/pm/apt.py
@@ -0,0 +1,22 @@
+"""Advanced Package Tool."""
+
+from rwx.os.pm import PM
+from rwx.ps import Command
+
+
+class APT(PM):
+    """Advanced Package Tool."""
+
+    def get_clean_command(self) -> Command:
+        """Return clean command.
+
+        :rtype: Command
+        """
+        return Command()
+
+    def get_install_command(self) -> Command:
+        """Return install command.
+
+        :rtype: Command
+        """
+        return Command()
diff --git a/rwx/prj/__init__.py b/rwx/prj/__init__.py
index 227a686..cfbe3ae 100644
--- a/rwx/prj/__init__.py
+++ b/rwx/prj/__init__.py
@@ -1,8 +1,20 @@
-from os import path
+"""Handle projects."""
+
+from pathlib import Path
+
+from rwx import Class
 
 
-class Project:
-    def __init__(self, file_path: str) -> None:
-        self.file: str = path.realpath(file_path)
-        self.root: str = path.dirname(self.file)
-        self.name: str = path.basename(self.root)
+class Project(Class):
+    """Parent class for any type of project."""
+
+    def __init__(self, file: Path) -> None:
+        """Set file, root & name.
+
+        :param file: root reference file
+        :type file: Path
+        """
+        self.raw = file
+        self.file = self.raw.resolve()
+        self.root: Path = self.file.parent
+        self.name: str = self.root.name
diff --git a/rwx/prj/sphinx.py b/rwx/prj/sphinx.py
index 3cef334..592e6dd 100644
--- a/rwx/prj/sphinx.py
+++ b/rwx/prj/sphinx.py
@@ -1,17 +1,22 @@
-from os import path
+"""Project consisting only of a Sphinx documentation."""
+
+from typing import TYPE_CHECKING
 
 from sphinx.cmd.build import build_main
 
 from rwx.fs import wipe
 from rwx.prj import Project
 
+if TYPE_CHECKING:
+    from pathlib import Path
+
 
 class SphinxProject(Project):
-    def __init__(self, file_path: str) -> None:
-        super().__init__(file_path)
+    """Child class for a project based on Sphinx."""
 
-    def build(self):
-        output_root: str = path.join(self.root, "out")
+    def build(self) -> None:
+        """Build the project."""
+        output_root: Path = self.root / "out"
         wipe(output_root)
         arguments: list[str] = [
             "-E",
@@ -22,13 +27,13 @@ class SphinxProject(Project):
             "-D",
             f"project={self.name}",
             "-D",
-            "master_doc={}".format("index"),
+            "master_doc=index",
             "-D",
-            "html_theme={}".format("sphinx_rtd_theme"),
+            "html_theme=sphinx_rtd_theme",
             "-c",
-            self.root,
+            str(self.root),
             # "-C",
-            path.join(self.root, self.name),
-            path.join(output_root, "web"),
+            str(self.root / self.name),
+            str(output_root / "web"),
         ]
         build_main(arguments)
diff --git a/rwx/ps/__init__.py b/rwx/ps/__init__.py
index b66c21b..821b9e3 100644
--- a/rwx/ps/__init__.py
+++ b/rwx/ps/__init__.py
@@ -1,32 +1,78 @@
+"""Handle processes."""
+
 import subprocess
 
-from rwx import txt
+from rwx import Class, txt
 
 
-def get_tuples_args(tuples) -> list[str]:
+class Command(Class):
+    """Command to run."""
+
+    def __init__(self, *arguments: str | tuple[str, ...]) -> None:
+        """Set raw & flat arguments.
+
+        :param *arguments: single argument or grouped ones
+        :type *arguments: str | tuple[str, ...]
+        """
+        self.raw = arguments
+        self.flat: list[str] = []
+
+
+def get_tuples_args(*items: str | tuple[str, ...]) -> list[str]:
+    """Turn arguments tuples into an arguments list.
+
+    :param *items: single item or grouped ones
+    :type *items: str | tuple[str, ...]
+    :rtype: list[str]
+    """
     args: list[str] = []
-    for item in tuples:
-        if type(item) is tuple:
-            args.extend(item)
-        else:
-            args.append(item)
+    for item in items:
+        match item:
+            case str():
+                args.append(item)
+            case tuple():
+                args.extend(item)
     return args
 
 
-def run(*tuples) -> subprocess.CompletedProcess:
+def run(*items: str | tuple[str, ...]) -> subprocess.CompletedProcess:
+    """Run from a list of arguments tuples.
+
+    :param *items: single item or grouped ones
+    :type *items: str | tuple[str, ...]
+    :rtype: subprocess.CompletedProcess
+    """
     return subprocess.run(
-        get_tuples_args(tuples), capture_output=False, check=True
+        get_tuples_args(*items), capture_output=False, check=True
     )
 
 
-def run_line(*tuples, charset: str = txt.CHARSET) -> str:
-    lines = run_lines(*get_tuples_args(tuples), charset=charset)
-    return lines[0]
+def run_line(*items: str | tuple[str, ...], charset: str = txt.CHARSET) -> str:
+    """Run and return output line.
+
+    :param *items: single item or grouped ones
+    :type *items: str | tuple[str, ...]
+    :param charset: charset to use for decoding binary output
+    :type charset: str
+    :rtype: str
+    """
+    line, *_ = run_lines(*items, charset=charset)
+    return line
 
 
-def run_lines(*tuples, charset: str = txt.CHARSET) -> list[str]:
+def run_lines(
+    *items: str | tuple[str, ...], charset: str = txt.CHARSET
+) -> list[str]:
+    """Run and return output lines.
+
+    :param *items: single item or grouped ones
+    :type *items: str | tuple[str, ...]
+    :param charset: charset to use for decoding binary output
+    :type charset: str
+    :rtype: list[str]
+    """
     process = subprocess.run(
-        get_tuples_args(tuples), capture_output=True, check=True
+        get_tuples_args(*items), capture_output=True, check=True
     )
     string = process.stdout.decode(charset)
     return string.rstrip().splitlines()
diff --git a/rwx/py.typed b/rwx/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/rwx/sw/freetube/__init__.py b/rwx/sw/freetube/__init__.py
new file mode 100644
index 0000000..250b9c3
--- /dev/null
+++ b/rwx/sw/freetube/__init__.py
@@ -0,0 +1 @@
+"""Configure FreeTube."""
diff --git a/rwx/sw/freetube/channels.py b/rwx/sw/freetube/channels.py
new file mode 100644
index 0000000..30777e9
--- /dev/null
+++ b/rwx/sw/freetube/channels.py
@@ -0,0 +1,29 @@
+"""FreeTube channels."""
+
+from rwx import Class
+
+
+class Channel(Class):
+    """FreeTube channel."""
+
+    def __init__(self, uid: str, name: str) -> None:
+        """Set uid & name.
+
+        :param uid: unique identifier
+        :type uid: str
+        :param name: label
+        :type name: str
+        """
+        self.uid = uid
+        self.name = name
+
+    def to_db(self) -> str:
+        """Return identifier as db.
+
+        :rtype: str
+        """
+        return f"""\
+{{\
+"id":"{self.uid}"\
+}}\
+"""
diff --git a/rwx/sw/freetube/db.py b/rwx/sw/freetube/db.py
new file mode 100644
index 0000000..e3eb31e
--- /dev/null
+++ b/rwx/sw/freetube/db.py
@@ -0,0 +1,21 @@
+"""Output FreeTube db."""
+
+
+def to_db(value: object) -> str:
+    """Render value as string.
+
+    :param value: value to render
+    :type value: object
+    :rtype: str
+    """
+    match value:
+        case bool():
+            text = str(value).lower()
+        case dict():
+            sub = ",".join([f'"{i}":{to_db(v)}' for i, v in value.items()])
+            text = f"{{{sub}}}"
+        case float() | str():
+            text = f'"{value}"'
+        case _:
+            text = str(value)
+    return text
diff --git a/rwx/sw/freetube/playlists.py b/rwx/sw/freetube/playlists.py
new file mode 100644
index 0000000..4183336
--- /dev/null
+++ b/rwx/sw/freetube/playlists.py
@@ -0,0 +1,47 @@
+"""FreeTube playlists."""
+
+from rwx import Class
+
+from .videos import Video
+
+
+class Playlist(Class):
+    """FreeTube playlist."""
+
+    def __init__(self, uid: str, name: str) -> None:
+        """Set uid & name.
+
+        :param uid: identifier
+        :type uid: str
+        :param name: label
+        :type name: str
+        """
+        self.uid = uid
+        self.name = name
+        self.videos: list[Video] = []
+
+    def add(self, video: Video) -> None:
+        """Add video.
+
+        :param video: video to add
+        :type video: Video
+        """
+        self.videos.append(video)
+
+    def to_db(self) -> str:
+        """Return identifier, name & videos.
+
+        :rtype: str
+        """
+        videos = ",".join([video.to_db() for video in self.videos])
+        return f"""\
+{{\
+"_id":"{self.uid}"\
+,\
+"playlistName":"{self.name}"\
+,\
+"protected":true\
+,\
+"videos":[{videos}]\
+}}\
+"""
diff --git a/rwx/sw/freetube/profiles.py b/rwx/sw/freetube/profiles.py
new file mode 100644
index 0000000..ffb0adc
--- /dev/null
+++ b/rwx/sw/freetube/profiles.py
@@ -0,0 +1,45 @@
+"""FreeTube profiles."""
+
+from rwx import Class
+
+from .channels import Channel
+
+
+class Profile(Class):
+    """FreeTube profile."""
+
+    def __init__(self, uid: str, name: str) -> None:
+        """Set uid & name.
+
+        :param uid: unique identifier
+        :type uid: str
+        :param name: label
+        :type name: str
+        """
+        self.id = uid
+        self.name = name
+        self.channels: list[Channel] = []
+
+    def add(self, channel: Channel) -> None:
+        """Add channel.
+
+        :param channel: channel to add
+        :type channel: Channel
+        """
+        self.channels.append(channel)
+
+    def to_db(self) -> str:
+        """Return identifier, name & channels.
+
+        :rtype: str
+        """
+        channels = ",".join([channel.to_db() for channel in self.channels])
+        return f"""\
+{{\
+"_id":"{self.id}"\
+,\
+"name":"{self.name}"\
+,\
+"subscriptions":[{channels}]\
+}}\
+"""
diff --git a/rwx/sw/freetube/settings.py b/rwx/sw/freetube/settings.py
new file mode 100644
index 0000000..67bb084
--- /dev/null
+++ b/rwx/sw/freetube/settings.py
@@ -0,0 +1,33 @@
+"""FreeTube settings."""
+
+from rwx import Class
+
+from .db import to_db
+
+
+class Setting(Class):
+    """FreeTube setting."""
+
+    def __init__(self, uid: str, value: object) -> None:
+        """Set uid & value.
+
+        :param uid: unique identifier
+        :type uid: str
+        :param value: value
+        :type value: object
+        """
+        self.uid = uid
+        self.value = value
+
+    def to_db(self) -> str:
+        """Return uid & value as db string.
+
+        :rtype: str
+        """
+        return f"""\
+{{\
+"_id":"{self.uid}"\
+,\
+"value":{to_db(self.value)}\
+}}\
+"""
diff --git a/rwx/sw/freetube/videos.py b/rwx/sw/freetube/videos.py
new file mode 100644
index 0000000..8a53713
--- /dev/null
+++ b/rwx/sw/freetube/videos.py
@@ -0,0 +1,33 @@
+"""FreeTube videos."""
+
+from rwx import Class
+
+
+class Video(Class):
+    """FreeTube video."""
+
+    def __init__(self, uid: str, name: str) -> None:
+        """Set id & name.
+
+        :param uid: identifier
+        :type uid: str
+        :param name: label
+        :type name: str
+        """
+        self.uid = uid
+        self.name = name
+
+    def to_db(self) -> str:
+        """Return identifier, zero length & title.
+
+        :rtype: str
+        """
+        return f"""\
+{{\
+"videoId":"{self.uid}"\
+,\
+"lengthSeconds":0\
+,\
+"title":"{self.name}"\
+}}\
+"""
diff --git a/rwx/txt/__init__.py b/rwx/txt/__init__.py
index 369202c..be2f273 100644
--- a/rwx/txt/__init__.py
+++ b/rwx/txt/__init__.py
@@ -1 +1,3 @@
+"""Handle text."""
+
 CHARSET = "UTF-8"