diff --git a/cutekit/__init__.py b/cutekit/__init__.py
index 124251a..1df2e47 100644
--- a/cutekit/__init__.py
+++ b/cutekit/__init__.py
@@ -3,7 +3,7 @@ import os
 import logging
 
 from cutekit import const, project, vt100, plugins, cmds
-from cutekit.args import parse
+
 
 def setupLogger(verbose: bool):
     if verbose:
@@ -31,12 +31,12 @@ def setupLogger(verbose: bool):
             datefmt="%Y-%m-%d %H:%M:%S",
         )
 
+
 def main() -> int:
     try:
-        a = parse(sys.argv[1:])
-        setupLogger(a.consumeOpt("verbose", False) == True)
+        setupLogger(False)
         plugins.loadAll()
-        cmds.exec(a)
+        cmds.exec(sys.argv)
         print()
         return 0
     except RuntimeError as e:
@@ -47,4 +47,4 @@ def main() -> int:
         return 1
     except KeyboardInterrupt:
         print()
-        return 1
\ No newline at end of file
+        return 1
diff --git a/cutekit/args2.py b/cutekit/args2.py
new file mode 100644
index 0000000..51d09f5
--- /dev/null
+++ b/cutekit/args2.py
@@ -0,0 +1,651 @@
+from typing import TypeVar, Generic, Optional, Callable, Any
+import sys
+from cutekit import vt100
+
+T = TypeVar('T')
+
+
+# --- Base ------------------------------------------------------------------- #
+
+class Scan:
+    _argv: list[str]
+    _off: int = 0
+
+    def __init__(self, argv: list[str]):
+        self._argv = argv
+
+    def any(self) -> bool:
+        return self._off < len(self._argv)
+
+    def peek(self) -> str:
+        return self._argv[self._off]
+
+    def tryPeek(self, default: str = "") -> str:
+        if self.any():
+            return self.peek()
+        return default
+
+    def isHelp(self) -> bool:
+        return self.tryPeek() == "-h" or self.tryPeek() == "--help"
+
+    def next(self) -> str:
+        result = self._argv[self._off]
+        self._off += 1
+        return result
+
+    def consumed(self) -> list[str]:
+        return self._argv[:self._off]
+
+
+class Emit:
+    _buf: str = ""
+    _ident: int = 0
+    _newline: int = 0
+
+    def __init__(self) -> None:
+        pass
+
+    def ident(self) -> None:
+        self._ident += 1
+
+    def unident(self) -> None:
+        self._ident -= 1
+
+    def emit(self, text: str) -> None:
+        for c in text:
+            if c == "\n":
+                self._newline += 1
+                continue
+
+            if c != "\n" and self._newline:
+                self.flushNewline()
+                self._buf += "    " * self._ident
+
+            self._buf += c
+
+    def newline(self) -> None:
+        self._newline += 1
+
+    def flushNewline(self) -> None:
+        if self._newline:
+            self._buf += "\n" * min(2, self._newline)
+            self._newline = 0
+
+    def finish(self) -> str:
+        self._newline = min(1, self._newline)
+        self.flushNewline()
+        if self._ident:
+            raise RuntimeError("Unbalanced ident")
+        return self._buf
+
+
+class Node:
+    def eval(self, s: Scan, args: Any) -> bool:
+        raise NotImplementedError()
+
+    def usage(self, e: Emit) -> None:
+        raise NotImplementedError()
+
+    def help(self, e: Emit) -> None:
+        raise NotImplementedError()
+
+
+# --- Quatifiers ------------------------------------------------------------ #
+
+class AllOf(Node):
+    parts: list[Node]
+
+    def __init__(self, *parts: Node):
+        self.parts = list(parts)
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if s.isHelp():
+            e = Emit()
+            self.help(e)
+            print(e.finish())
+            raise SystemExit(0)
+
+        for part in self.parts:
+            part.eval(s, args)
+
+        return True
+
+    def usage(self, e: Emit) -> None:
+        if len(self.parts) == 1:
+            self.parts[0].usage(e)
+            return
+
+        e.emit("(")
+        first = True
+        for part in self.parts:
+            if not first:
+                e.emit(" ")
+            first = False
+            part.usage(e)
+        e.emit(")")
+
+    def help(self, e: Emit) -> None:
+        for part in self.parts:
+            part.help(e)
+
+
+class OneOf(Node):
+    parts: list[Node]
+
+    def __init__(self, *parts: Node, title: Optional[str] = None):
+        self.parts = list(parts)
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if s.isHelp():
+            e = Emit()
+            self.help(e)
+            print(e.finish())
+            raise SystemExit(0)
+
+        for part in self.parts:
+            if part.eval(s, args):
+                return True
+
+        e = Emit()
+        self.usage(e)
+        if not s.any():
+            raise RuntimeError(
+                f"Unexpected end of input, expected one of " + e.finish())
+
+        raise RuntimeError(
+            f"Unexpected {s.peek()}, expected one of " + e.finish())
+
+    def usage(self, e: Emit) -> None:
+        e.emit("(")
+        first = True
+        for part in self.parts:
+            if not first:
+                e.emit(" | ")
+            first = False
+            part.usage(e)
+        e.emit(")")
+
+    def help(self, e: Emit) -> None:
+        for part in self.parts:
+            part.help(e)
+
+
+class ZeroOrMoreOf(Node):
+    operands: list[Node]
+
+    def __init__(self, *operands: Node):
+        self.operands = list(operands)
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if s.isHelp():
+            e = Emit()
+            self.help(e)
+            print(e.finish())
+            raise SystemExit(0)
+
+        any = True
+        while s.any() and any:
+            any = False
+            for part in self.operands:
+                if not part.eval(s, args):
+                    break
+
+        return True
+
+    def usage(self, e: Emit) -> None:
+        if len(self.operands) == 1:
+            e.emit("[")
+            self.operands[0].usage(e)
+            e.emit("...]")
+            return
+
+        e.emit("[")
+        first = True
+        for part in self.operands:
+            if not first:
+                e.emit(" | ")
+            first = False
+            part.usage(e)
+        e.emit("]+")
+
+    def help(self, e: Emit) -> None:
+        for part in self.operands:
+            part.help(e)
+
+
+class OneOrMoreOf(Node):
+    operands: list[Node]
+
+    def __init__(self, *operands: Node):
+        self.operands = list(operands)
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if s.isHelp():
+            e = Emit()
+            self.help(e)
+            print(e.finish())
+            raise SystemExit(0)
+
+        any = False
+        while s.any():
+            for operand in self.operands:
+                if operand.eval(s, args):
+                    any = True
+                    break
+
+            if not any:
+                break
+
+        if not any:
+            e = Emit()
+            self.usage(e)
+            if not s.any():
+                raise RuntimeError(
+                    f"Unexpected end of input, expected one or more {vt100.BOLD + vt100.GREEN}{e.finish()}{vt100.RESET}")
+
+            raise RuntimeError(
+                f"Unexpected {vt100.BOLD + vt100.BROWN}{s.peek()}{vt100.RESET}, expected one or more {vt100.BOLD + vt100.GREEN}{e.finish()}{vt100.RESET}")
+
+        return True
+
+    def usage(self, e: Emit) -> None:
+        if len(self.operands) == 1:
+            e.emit("")
+            self.operands[0].usage(e)
+            e.emit("+")
+            return
+
+        e.emit("[")
+        first = True
+        for operand in self.operands:
+            if not first:
+                e.emit(" | ")
+            first = False
+            e.emit("[")
+            operand.usage(e)
+            e.emit("]")
+        e.emit("]+")
+
+    def help(self, e: Emit) -> None:
+        for operand in self.operands:
+            operand.help(e)
+
+
+# --- Keywords, Options and Operands ---------------------------------------- #
+
+class Keyword(Node):
+    name: str
+    shorthand: str
+    description: str
+    syntax: Optional[Node]
+    run: Optional[Callable[[Any], None]]
+
+    def __init__(self, name: str, shorthand: str = "", description: str = "", syntax: Optional[Node] = None, run: Optional[Callable[[Any], None]] = None):
+        self.name = name
+        self.shorthand = shorthand
+        self.description = description
+        self.syntax = syntax
+        self.run = run
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if s.any() and (s.peek() == self.name or s.peek() == self.shorthand):
+            s.next()
+            if self.syntax:
+                try:
+                    self.syntax.eval(s, args)
+                except RuntimeError as e:
+                    print(f"{vt100.RED}Error:{vt100.RESET} {e}")
+                    print("Try: --help for more information")
+                    raise SystemExit(1)
+
+            if self.run:
+                self.run(args)
+            return True
+        return False
+
+    def usage(self, e: Emit) -> None:
+        if self.shorthand:
+            e.emit(f'({self.shorthand} | ')
+
+        e.emit(self.name)
+
+        if self.shorthand:
+            e.emit(")")
+
+        if self.syntax:
+            e.emit(" ")
+            self.syntax.usage(e)
+
+    def help(self, e: Emit) -> None:
+        if self.shorthand:
+            e.emit(f" {vt100.BOLD + vt100.GREEN}{self.shorthand}{vt100.RESET}  ")
+        else:
+            e.emit("    ")
+        e.emit(f"{self.name} -")
+        e.emit(f" {self.description}\n")
+
+        e.ident()
+        e.newline()
+        e.emit(f"{vt100.BOLD}Usage:{vt100.RESET}")
+        e.newline()
+        self.usage(e)
+        e.newline()
+
+        if self.syntax:
+            self.syntax.help(e)
+        e.unident()
+        e.newline()
+
+
+class Option(Node, Generic[T]):
+    name: str
+    key: str
+    shorthand: str
+    description: str
+    default: Optional[T]
+
+    def __init__(self, name: str, key: Optional[str] = None, shorthand: str = "", description: str = "", default: Optional[T] = None):
+        self.name = name
+        self.key = key or name
+        self.shorthand = shorthand
+        self.description = description
+        self.default = default
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if not s.any():
+            return False
+
+        opt = s.peek()
+        if s.peek().startswith('--' + self.name) or s.peek().startswith('-' + self.shorthand):
+            s.next()
+            if '=' in opt:
+                value = opt.split('=')[1]
+            else:
+                if not s.any():
+                    raise RuntimeError(
+                        f"Missing value for {vt100.BOLD + vt100.BROWN}{opt}{vt100.RESET}")
+                value = s.next()
+            args[self.key] = value
+            return True
+        return False
+
+    def usage(self, e: Emit) -> None:
+        e.emit("(")
+        if self.shorthand:
+            e.emit(f'(-{self.shorthand} | ')
+
+        e.emit(f'--{self.name}')
+
+        if self.shorthand:
+            e.emit(")")
+
+        if self.default:
+            e.emit(f'=<{self.key}>')
+
+        e.emit(")")
+
+    def help(self, e: Emit) -> None:
+        if self.shorthand:
+            e.emit(f"-{self.shorthand}, ")
+        else:
+            e.emit("    ")
+        e.emit(f"--{self.name}")
+        e.emit(f" {self.description}")
+
+        if self.default:
+            e.emit(f" (default: {self.default})")
+        e.emit("\n")
+
+
+class Operand(Node, Generic[T]):
+    name: str
+    key: str
+    description: str
+    default: Optional[T]
+
+    def __init__(self, name: str, key: Optional[str] = None, description: str = "", default: Optional[T] = None):
+        self.name = name
+        self.key = key or name
+        self.description = description
+        self.default = default
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if s.any() and not s.peek().startswith('-'):
+            args[self.key] = s.next()
+            return True
+        return False
+
+    def usage(self, e: Emit) -> None:
+        e.emit(f"<{self.key}>")
+
+    def help(self, e: Emit) -> None:
+        e.emit(f"{vt100.WHITE}<{self.name}>{vt100.RESET}")
+        e.emit(f" {self.description}\n")
+        if self.default:
+            e.emit(f" (default: {self.default})")
+
+
+class Operands(Node, Generic[T]):
+    name: str
+    key: str
+    description: str
+    default: list[T]
+
+    def __init__(self, name: str, key: Optional[str] = None, description: str = "", default: list[T] = []):
+        self.name = name
+        self.key = key or name
+        self.description = description
+        self.default = default
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if self.key not in args:
+            args[self.key] = []
+
+        any = False
+        while s.any() and not s.peek().startswith('-'):
+            args[self.key] += [s.next()]
+            any = True
+
+        if not any and len(args[self.key]) == 0:
+            args[self.key] += self.default
+
+        return True
+
+    def usage(self, e: Emit) -> None:
+        e.emit(f"<{self.key}...>")
+
+    def help(self, e: Emit) -> None:
+        e.emit(f"{vt100.WHITE}<{self.name}>{vt100.RESET}")
+        e.emit(f" {self.description}\n")
+        if self.default:
+            e.emit(f" (default: {self.default})")
+
+
+class Sink(Node):
+    name: str
+    key: str
+    description: str
+
+    def __init__(self, name: str, key: Optional[str] = None, description: str = ""):
+        self.name = name
+        self.key = key or name
+        self.description = description
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        if self.key not in args:
+            args[self.key] = []
+        while s.any():
+            args[self.key].append(s.next())
+        return True
+
+    def usage(self, e: Emit) -> None:
+        e.emit(f"<{self.name}>...")
+
+    def help(self, e: Emit) -> None:
+        e.emit(f"{vt100.WHITE}<{self.name}...>{vt100.RESET}")
+        e.emit(f" {self.description}\n")
+        e.emit("\n")
+
+# --- Help ------------------------------------------------------------------- #
+
+
+class Title(Node):
+    title: str
+
+    def __init__(self, title: str):
+        self.title = title
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        return False
+
+    def usage(self, e: Emit) -> None:
+        pass
+
+    def help(self, e: Emit) -> None:
+        e.emit(f"{vt100.BOLD}{self.title}{vt100.RESET}\n")
+
+
+class Heading(Node):
+    title: str
+
+    def __init__(self, title: str):
+        self.title = title
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        return False
+
+    def usage(self, e: Emit) -> None:
+        pass
+
+    def help(self, e: Emit) -> None:
+        e.emit(f"{vt100.BOLD}{self.title}:{vt100.RESET}\n")
+
+
+class Paragraph(Node):
+    _text: str
+
+    def __init__(self, text: str):
+        self._text = text
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        return False
+
+    def usage(self, e: Emit) -> None:
+        pass
+
+    def help(self, e: Emit) -> None:
+        e.emit(f"{self._text}\n")
+
+
+class Section(Node):
+    _inner: Node
+
+    def __init__(self, inner: Node):
+        self._inner = inner
+
+    def eval(self, s: Scan, args: Any) -> bool:
+        return self._inner.eval(s, args)
+
+    def usage(self, e: Emit) -> None:
+        self._inner.usage(e)
+
+    def help(self, e: Emit) -> None:
+        e.newline()
+        self._inner.help(e)
+        e.newline()
+
+
+def Options(*nodes: Node) -> Node:
+    return Section(ZeroOrMoreOf(
+        Heading("Options"),
+        Paragraph("Options can be specified in any order."),
+        ZeroOrMoreOf(
+            *nodes,
+        ),
+    ))
+
+
+"""
+cmds = None
+
+
+def helpCmd(args):
+    global cmds
+    if cmds:
+        e = Emit()
+        cmds.help(e)
+        print(e.finish())
+
+cmds = Section(OneOf(
+    Title("CuteKit"),
+    Paragraph(
+        "A build system and package manager for low-level software development"),
+
+    Section(
+        ZeroOrMoreOf(
+            Heading("Usage"),
+            Paragraph("ck <command> [args...]")
+        )
+    ),
+
+    Section(
+        OneOf(
+            Heading("Commands"),
+            Keyword(
+                "help",
+                shorthand="h",
+                description="Show help",
+                syntax=AllOf(
+                    Operand("command", description="Command to show help for"),
+                ),
+                run=helpCmd,
+            ),
+            Keyword(
+                "build",
+                shorthand="b",
+                description="Build the project",
+                syntax=AllOf(
+                    Options(
+                        Option[str](
+                            "target",
+                            shorthand="t",
+                            description="Build target",
+                            default="default",
+                        ),
+                    ),
+                    Operands(
+                        "components",
+                        description="Components to build",
+                    ),
+                ),
+                run=lambda args: print("build", args),
+            ),
+            Keyword(
+                "run",
+                shorthand="r",
+                description="Run the project",
+                syntax=AllOf(
+                    Options(
+                        Option[str](
+                            "target",
+                            shorthand="t",
+                            description="Build target",
+                            default="default",
+                        ),
+                    ),
+                    Operand("component", description="Component to run"),
+                    Sink("args", description="Arguments to pass to the component")
+                ),
+                run=lambda args: print("run", args),
+            ),
+        )
+    )
+))
+
+try:
+    cmds.eval(Scan(sys.argv[1:]), {})
+except RuntimeError as e:
+    print(f"{vt100.RED}Error:{vt100.RESET} {e}")
+    print("Try: --help for more information")
+    raise SystemExit(1)
+"""
diff --git a/cutekit/builder.py b/cutekit/builder.py
index f505ec0..b25f12b 100644
--- a/cutekit/builder.py
+++ b/cutekit/builder.py
@@ -93,7 +93,7 @@ def gen(out: TextIO, context: Context):
     writer.default("all")
 
 
-def build(componentSpec: str, targetSpec: str, props: Props = {}) -> ComponentInstance:
+def buildMany(componentSpec: list[str], targetSpec: str, props: Props = {}) -> list[ComponentInstance]:
     context = contextFor(targetSpec, props)
 
     shell.mkdir(context.builddir())
@@ -102,18 +102,21 @@ def build(componentSpec: str, targetSpec: str, props: Props = {}) -> ComponentIn
     with open(ninjaPath, "w") as f:
         gen(f, context)
 
-    instance = context.componentByName(componentSpec)
+    instances = map(lambda i: context.componentByName(i), componentSpec)
 
-    if instance is None:
-        raise RuntimeError(f"Component {componentSpec} not found")
+    for instance in instances:
+        if not instance.enabled:
+            raise RuntimeError(
+                f"Component {componentSpec} is disabled: {instance.disableReason}")
 
-    if not instance.enabled:
-        raise RuntimeError(
-            f"Component {componentSpec} is disabled: {instance.disableReason}")
+    shell.exec(f"ninja", "-v", "-f", ninjaPath,
+               *map(lambda i: i.outfile(), instances))
 
-    shell.exec(f"ninja", "-v", "-f", ninjaPath, instance.outfile())
+    return [instance]
 
-    return instance
+
+def build(componentSpec: str, targetSpec: str, props: Props = {}) -> ComponentInstance:
+    return buildMany([componentSpec], targetSpec, props)[0]
 
 
 class Paths:
diff --git a/cutekit/cmds.py b/cutekit/cmds.py
index 812c0c8..d5f2a6b 100644
--- a/cutekit/cmds.py
+++ b/cutekit/cmds.py
@@ -2,212 +2,328 @@ import os
 import logging
 import requests
 import sys
+import git
 
-from typing import Callable, cast, Optional, NoReturn
+from typing import cast, Optional, Any
 
-from cutekit import context, shell, const, vt100, builder, graph, project
-from cutekit.args import Args
-from cutekit.jexpr import Json
+from cutekit import context, shell, const, vt100, builder, graph, project, args2
 from cutekit.model import Extern
 from cutekit.context import contextFor
 
-Callback = Callable[[Args], None]
+
+# === Commons ================================================================ #
+
+TARGET_OPTION = args2.Option[str](
+    "target",
+    shorthand="t",
+    description="Build target",
+    default="host-" + shell.uname().machine
+)
 
 logger = logging.getLogger(__name__)
 
-
-class Cmd:
-    shortName: Optional[str]
-    longName: str
-    helpText: str
-    callback: Callable[[Args], NoReturn]
-    isPlugin: bool = False
-
-    def __init__(self, shortName: Optional[str], longName: str, helpText: str, callback: Callable[[Args], NoReturn]):
-        self.shortName = shortName
-        self.longName = longName
-        self.helpText = helpText
-        self.callback = callback
+root: Optional[args2.Node] = None
+cmds: list[args2.Node] = []
 
 
-cmds: list[Cmd] = []
-
-
-def append(cmd: Cmd):
-    cmd.isPlugin = True
+def append(cmd: args2.Node):
+    global cmds
     cmds.append(cmd)
-    cmds.sort(key=lambda c: c.shortName or c.longName)
 
 
-def runCmd(args: Args):
+def usage():
+    print(f"Usage: {const.ARGV0} <command> [args...]")
+
+
+def error(msg: str) -> None:
+    print(f"{vt100.RED}Error:{vt100.RESET} {msg}\n", file=sys.stderr)
+
+
+def exec(args: list[str]):
+    global root, cmds
+
+    if root is None:
+        root = args2.Section(args2.OneOf(
+            args2.Title("CuteKit"),
+            args2.Paragraph(
+                "A build system and package manager for low-level software development"),
+
+            args2.Section(
+                args2.ZeroOrMoreOf(
+                    args2.Heading("Usage"),
+                    args2.Paragraph("ck <command> [args...]")
+                )
+            ),
+
+            args2.Section(
+                args2.OneOf(
+                    args2.Heading("Commands"),
+                    *cmds
+                )
+            )
+        ))
+
+    try:
+        root.eval(args2.Scan(args[1:]), {})
+    except RuntimeError as e:
+        print(f"{vt100.RED}Error:{vt100.RESET} {e}")
+        print("Try: --help for more information")
+        raise SystemExit(1)
+
+
+# === Commands =============================================================== #
+
+# --- Help Command ----------------------------------------------------------- #
+
+def helpCmd(args: Any):
+    global root
+    if root:
+        e = args.Emit()
+        root.help(e)
+        print(e.finish())
+
+
+append(
+    args2.Keyword(
+        "help",
+        shorthand="h",
+        description="Show help",
+        run=helpCmd,
+    )
+)
+
+# --- Run Command ------------------------------------------------------------ #
+
+
+def runCmd(args: Any):
     project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt(
-        "target", "host-" + shell.uname().machine))
-
-    componentSpec = args.consumeArg()
-
-    if componentSpec is None:
-        raise RuntimeError("Component not specified")
-
-    component = builder.build(componentSpec, targetSpec)
-
+    component = builder.build(args['component'], args['target'])
     os.environ["CK_TARGET"] = component.context.target.id
     os.environ["CK_COMPONENT"] = component.id()
     os.environ["CK_BUILDDIR"] = component.context.builddir()
-
-    shell.exec(component.outfile(), *args.args)
+    shell.exec(component.outfile(), *args["args"])
 
 
-cmds += [Cmd("r", "run", "Run the target", runCmd)]
+append(
+    args2.Keyword(
+        "run",
+        shorthand="r",
+        description="Run the target",
+        run=runCmd,
+        syntax=args2.AllOf(
+            args2.Options(
+                TARGET_OPTION
+            ),
+            args2.Operand("component", description="Component to run"),
+            args2.Sink("args", description="Arguments to pass to the component")
+        ),
+    ),
+)
 
 
-def testCmd(args: Args):
+# --- Test Command ----------------------------------------------------------- #
+
+def testCmd(args: Any):
     project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt(
-        "target", "host-" + shell.uname().machine))
-    builder.testAll(targetSpec)
+    builder.testAll(args['target'])
 
 
-cmds += [Cmd("t", "test", "Run all test targets", testCmd)]
+append(
+    args2.Keyword(
+        "test",
+        shorthand="t",
+        description="Run all test",
+        run=testCmd,
+        syntax=args2.AllOf(
+            args2.Options(
+                TARGET_OPTION
+            )
+        ),
+    ),
+)
 
 
-def debugCmd(args: Args):
+# --- Debug Command ---------------------------------------------------------- #
+
+def debugCmd(args: Any):
     project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt(
-        "target", "host-" + shell.uname().machine))
-
-    componentSpec = args.consumeArg()
-
-    if componentSpec is None:
-        raise RuntimeError("Component not specified")
-
-    component = builder.build(componentSpec, targetSpec)
-
+    component = builder.build(args['component'], args['target'])
     os.environ["CK_TARGET"] = component.context.target.id
     os.environ["CK_COMPONENT"] = component.id()
     os.environ["CK_BUILDDIR"] = component.context.builddir()
-
-    shell.exec("lldb", "-o", "run", component.outfile(), *args.args)
+    shell.exec("lldb", "-o", "run", component.outfile(), *args["args"])
 
 
-cmds += [Cmd("d", "debug", "Debug the target", debugCmd)]
+append(
+    args2.Keyword(
+        "debug",
+        shorthand="d",
+        description="Run a component in the debugger",
+        run=debugCmd,
+        syntax=args2.AllOf(
+            args2.Options(
+                TARGET_OPTION
+            ),
+            args2.Operand("component", description="Component to debug"),
+            args2.Sink("args", description="Arguments to pass to the component")
+        ),
+    ),
+)
 
 
-def buildCmd(args: Args):
+# --- Build Command ---------------------------------------------------------- #
+
+def buildCmd(args: Any):
     project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt(
-        "target", "host-" + shell.uname().machine))
-
-    componentSpec = args.consumeArg()
-
-    if componentSpec is None:
-        builder.buildAll(targetSpec)
+    if len(args['components']) == 0:
+        builder.buildAll(args['target'])
     else:
-        builder.build(componentSpec, targetSpec)
+        builder.buildMany(args['components'], args['target'])
 
 
-cmds += [Cmd("b", "build", "Build the target", buildCmd)]
+append(
+    args2.Keyword(
+        "build",
+        shorthand="b",
+        description="Build specified component or all components",
+        run=buildCmd,
+        syntax=args2.AllOf(
+            args2.Options(
+                TARGET_OPTION
+            ),
+            args2.Operands(
+                "components", description="Components to build", default=[])
+        ),
+    ),
+)
 
 
-def listCmd(args: Args):
-    project.chdir()
+# --- List Command ----------------------------------------------------------- #
 
-    components = context.loadAllComponents()
-    targets = context.loadAllTargets()
-
-    vt100.title("Components")
-    if len(components) == 0:
-        print(f"   (No components available)")
+def listWithTitle(title: str, elements: list[str]):
+    vt100.title(title + " (" + str(len(elements)) + ")")
+    if len(elements) == 0:
+        print(f"   (No {title.lower()} available)")
     else:
         print(vt100.indent(vt100.wordwrap(
-            ", ".join(map(lambda m: m.id, components)))))
-    print()
-
-    vt100.title("Targets")
-
-    if len(targets) == 0:
-        print(f"   (No targets available)")
-    else:
-        print(vt100.indent(vt100.wordwrap(", ".join(map(lambda m: m.id, targets)))))
-
+            ", ".join(elements))))
     print()
 
 
-cmds += [Cmd("l", "list", "List the targets", listCmd)]
+def listCmd(args: Any):
+    project.chdir()
+    components = context.loadAllComponents()
+    targets = context.loadAllTargets()
+    listWithTitle("Components", list(map(lambda m: m.id, components)))
+    listWithTitle("Targets", list(map(lambda m: m.id, targets)))
 
 
-def cleanCmd(args: Args):
+append(
+    args2.Keyword(
+        "list",
+        shorthand="l",
+        description="List all targets and components",
+        run=listCmd,
+    ),
+)
+
+# --- Clean Command ---------------------------------------------------------- #
+
+
+def cleanCmd(args: Any):
     project.chdir()
     shell.rmrf(const.BUILD_DIR)
 
 
-cmds += [Cmd("c", "clean", "Clean the build directory", cleanCmd)]
+append(
+    args2.Keyword(
+        "clean",
+        shorthand="c",
+        description="Clean the build directory",
+        run=cleanCmd,
+    ),
+)
+
+# --- Nuke Command ---------------------------------------------------------- #
 
 
-def nukeCmd(args: Args):
+def nukeCmd(args: Any):
     project.chdir()
     shell.rmrf(const.PROJECT_CK_DIR)
 
 
-cmds += [Cmd("n", "nuke", "Clean the build directory and cache", nukeCmd)]
+append(
+    args2.Keyword(
+        "nuke",
+        shorthand="n",
+        description="Clean the build and cache directories",
+        run=nukeCmd,
+    ),
+)
 
 
-def helpCmd(args: Args):
-    usage()
-
-    print()
-
-    vt100.title("Description")
-    print(f"    {const.DESCRIPTION}")
-
-    print()
-    vt100.title("Commands")
-    for cmd in cmds:
-        pluginText = ""
-        if cmd.isPlugin:
-            pluginText = f"{vt100.CYAN}(plugin){vt100.RESET}"
-
-        print(
-            f" {vt100.GREEN}{cmd.shortName or ' '}{vt100.RESET}  {cmd.longName} - {cmd.helpText} {pluginText}")
-
-    print()
-    vt100.title("Logging")
-    print(f"    Logs are stored in:")
-    print(f"     - {const.PROJECT_LOG_FILE}")
-    print(f"     - {const.GLOBAL_LOG_FILE}")
+# --- Version Command ---------------------------------------------------------- #
 
 
-cmds += [Cmd("h", "help", "Show this help message", helpCmd)]
-
-
-def versionCmd(args: Args):
+def versionCmd(args: Any):
     print(f"CuteKit v{const.VERSION_STR}\n")
 
 
-cmds += [Cmd("v", "version", "Show current version", versionCmd)]
+append(
+    args2.Keyword(
+        "version",
+        shorthand="v",
+        description="Show current version",
+        run=versionCmd,
+    ),
+)
+
+# --- Version Command ---------------------------------------------------------- #
 
 
-def graphCmd(args: Args):
+def graphCmd(args: Any):
     project.chdir()
-
-    targetSpec = cast(str, args.consumeOpt(
-        "target", "host-" + shell.uname().machine))
-
-    scope: Optional[str] = cast(Optional[str], args.tryConsumeOpt("scope"))
-    onlyLibs: bool = args.consumeOpt("only-libs", False) == True
-    showDisabled: bool = args.consumeOpt("show-disabled", False) == True
-
-    context = contextFor(targetSpec)
-
-    graph.view(context, scope=scope, showExe=not onlyLibs,
-               showDisabled=showDisabled)
+    context = contextFor(args["target"])
+    graph.view(
+        context,
+        scope=args["scope"],
+        showExe=not args["only-libs"],
+        showDisabled=args["show-disabled"])
 
 
-cmds += [Cmd("g", "graph", "Show dependency graph", graphCmd)]
+append(
+    args2.Keyword(
+        "graph",
+        shorthand="g",
+        description="Show dependency graph",
+        run=graphCmd,
+        syntax=args2.AllOf(
+            args2.Options(
+                TARGET_OPTION,
+                args2.Option[str](
+                    "scope",
+                    shorthand="s",
+                    description="Scope to show (default: all)",
+                    default=None,
+                ),
+                args2.Option[bool](
+                    "only-libs",
+                    shorthand="l",
+                    description="Only show libraries",
+                    default=False,
+                ),
+                args2.Option[bool](
+                    "show-disabled",
+                    shorthand="d",
+                    description="Show disabled components",
+                    default=False,
+                )
+            )
+        ),
+    ),
+)
+
+# --- Install Command ---------------------------------------------------------- #
 
 
 def grabExtern(extern: dict[str, Extern]):
@@ -225,22 +341,30 @@ def grabExtern(extern: dict[str, Extern]):
             grabExtern(context.loadProject(extPath).extern)
 
 
-def installCmd(args: Args):
+def installCmd(args: Any):
     project.chdir()
-
-    pj = context.loadProject(".")
-    grabExtern(pj.extern)
+    p = context.loadProject(".")
+    grabExtern(p.extern)
 
 
-cmds += [Cmd("i", "install", "Install all the external packages", installCmd)]
+append(
+    args2.Keyword(
+        "install",
+        shorthand="i",
+        description="Install external dependencies",
+        run=installCmd,
+    ),
+)
+
+# --- Init Command ---------------------------------------------------------- #
 
 
-def initCmd(args: Args):
-    repo = args.consumeOpt('repo', const.DEFAULT_REPO_TEMPLATES)
-    list = args.consumeOpt('list')
+def initCmd(args: Any):
+    repo = args['repo']
+    list = args['list']
 
-    template = args.consumeArg()
-    name = args.consumeArg()
+    template = args['template']
+    name = args['name']
 
     logger.info("Fetching registry...")
     r = requests.get(
@@ -261,7 +385,7 @@ def initCmd(args: Args):
             raise RuntimeError('Failed to fetch registry')
 
         print('\n'.join(
-            f"* {entry['id']} - {entry['description']}" for entry in json.loads(r.text)))
+            f"* {entry['id']} - {entry['description']}" for entry in registry))
         return
 
     if not template:
@@ -284,26 +408,35 @@ def initCmd(args: Args):
         f"  {vt100.GREEN}cutekit build{vt100.BRIGHT_BLACK}  # Build the project{vt100.RESET}")
 
 
-cmds += [Cmd("I", "init", "Initialize a new project", initCmd)]
-
-
-def usage():
-    print(f"Usage: {const.ARGV0} <command> [args...]")
-
-
-def error(msg: str) -> None:
-    print(f"{vt100.RED}Error:{vt100.RESET} {msg}\n", file=sys.stderr)
-
-
-def exec(args: Args):
-    cmd = args.consumeArg()
-
-    if cmd is None:
-        raise RuntimeError("No command specified")
-
-    for c in cmds:
-        if c.shortName == cmd or c.longName == cmd:
-            c.callback(args)
-            return
-
-    raise RuntimeError(f"Unknown command {cmd}")
+append(
+    args2.Keyword(
+        "init",
+        shorthand="I",
+        description="Initialize a new project",
+        run=installCmd,
+        syntax=args2.AllOf(
+            args2.Options(
+                args2.Option[str](
+                    "repo",
+                    shorthand="r",
+                    description="Repository to fetch templates from",
+                    default=const.DEFAULT_REPO_TEMPLATES,
+                ),
+                args2.Option[bool](
+                    "list",
+                    shorthand="l",
+                    description="List available templates",
+                    default=False,
+                ),
+            ),
+            args2.Operand[str](
+                "template",
+                description="Template to use",
+            ),
+            args2.Operand[str](
+                "name",
+                description="Name of the project",
+            )
+        ),
+    )
+)
diff --git a/cutekit/context.py b/cutekit/context.py
index 10e98c2..ce87f00 100644
--- a/cutekit/context.py
+++ b/cutekit/context.py
@@ -95,10 +95,10 @@ class Context(IContext):
         self.instances = instances
         self.tools = tools
 
-    def componentByName(self, name: str) -> Optional[ComponentInstance]:
+    def componentByName(self, name: str) -> ComponentInstance:
         result = list(filter(lambda x: x.manifest.id == name, self.instances))
         if len(result) == 0:
-            return None
+            raise RuntimeError(f"Component '{name}' not found")
         return result[0]
 
     def cincls(self) -> list[str]: