remove features and prepare for plugin

yt_dlp/jsinterp/__init__.py

@@ -1,14 +1,28 @@
 # flake8: noqa: F401
 from .native import JSInterpreter
-from .common import _JSI_PREFERENCES, _JSI_HANDLERS, JSIWrapper
-from ._phantomjs import PhantomJSwrapper
-from . import _deno  # ensure jsi registration
+from .common import _JSI_PREFERENCES, JSIWrapper
+from ._phantomjs import PhantomJSJSI, PhantomJSwrapper
+from ._deno import DenoJSI, DenoJSDomJSI
+from ..globals import jsi_runtimes, plugin_jsis
+from ..plugins import PluginSpec, register_plugin_spec
 
+jsi_runtimes.value.update({
+    name: value
+    for name, value in globals().items()
+    if name.endswith('JSI')
+})
+
+plugin_spec = PluginSpec(
+    module_name='jsinterp',
+    suffix='JSI',
+    destination=jsi_runtimes,
+    plugin_destination=plugin_jsis,
+)
+register_plugin_spec(plugin_spec)
 
 __all__ = [
     JSInterpreter,
     PhantomJSwrapper,
-    _JSI_HANDLERS,
     _JSI_PREFERENCES,
     JSIWrapper,
 ]