[~] add host_deps command

Makefile

@@ -1,3 +1,6 @@
+host_deps:
+	./m host_deps
+
 python_clean:
 	rm -fr \
 		~/.local/bin/env3 \

_m.py

@@ -259,9 +259,17 @@ def inside_env() -> bool:
 #    ruff = 'ruff'
 #    m2 = 'm2'
 
-Command_args = ['js', 'mypy', 'env', 'ruff', 'm2']
+def host_deps(argv: list[str]) -> None:
+    if sys.platform in ['linux']:
+        subprocess.check_call(r'''
+            exec yay -S $(cat requirements-archlinux.txt)
+        ''', shell=True,)
+    else:
+        raise NotImplementedError
 
-Command : TypeAlias = Literal['js', 'mypy', 'env', 'ruff', 'm2']
+Command_args = ['js', 'mypy', 'env', 'ruff', 'm2', 'host_deps',]
+
+Command : TypeAlias = Literal['js', 'mypy', 'env', 'ruff', 'm2', 'host_deps',]
 
 def run(argv: Optional[list[str]] = None) -> None:
     logging.basicConfig(
@@ -297,6 +305,8 @@ def run(argv: Optional[list[str]] = None) -> None:
 
     if options.command == 'js':
         js(args)
+    elif options.command == 'host_deps':
+        host_deps(args)
     elif options.command == 'env':
         env(args)
     elif options.command == 'mypy':

requirements-archlinux.txt

@@ -0,0 +1 @@
+python-build