do not fail if default binaries aren't there

provision.py

@@ -72,9 +72,20 @@ def downloaded_program_lines(name: str, destination: str) -> list[str]:
     var = variable_name(Path(name))
     return [
         f'{var}_bin = cp.File(home + "/{name}")',
-        f'if not {var}_bin then exit("Missing downloaded program: {name}")',
-        f'{var}_bin.move("{destination}", "{name}")',
-        *install_file_lines(var, f"{destination}/{name}", name),
+        f'if not {var}_bin then',
+        f'\tprint("Missing downloaded program: {name}")',
+        f'else',
+        f'\t{var}_bin.move("{destination}", "{name}")',
+        f'\t{var}_bin = cp.File("{destination}/{name}")',
+        f'\tif not {var}_bin then',
+        f'\t\tprint("Failed to install {name}")',
+        f'\telse',
+        f'\t\t{var}_bin.set_group("root")',
+        f'\t\t{var}_bin.set_owner("root")',
+        f'\t\t{var}_bin.chmod("u+rwx,g+rx,o+rx")',
+        f'\tend if',
+        f'end if',
+        "",
     ]
 
 
@@ -88,6 +99,7 @@ def build_provision() -> str:
         'home = "/home/" + active_user',
         "NL = char(10)",
         'cp.create_folder(home, "source")',
+        'cp.create_folder(home, "guest")',
         "",
     ]