diff --git a/autoload/vimspector.vim b/autoload/vimspector.vim
index 4e96968..1dd22f1 100644
--- a/autoload/vimspector.vim
+++ b/autoload/vimspector.vim
@@ -133,11 +133,10 @@ function! vimspector#ShowOutput( category ) abort
 endfunction
 
 function! vimspector#ShowOutputInWindow( win_id, category ) abort
-  py3 <<EOF
-from vimspector import output as vimspector_output
-vimspector_output.ShowOutputInWindow( int( vim.eval( 'a:win_id' ) ),
-                                      vim.eval( 'a:category' ) )
-EOF
+  py3 __import__( 'vimspector',
+        \         fromlist = [ 'output' ] ).output.ShowOutputInWindow(
+        \           int( vim.eval( 'a:win_id' ) ),
+        \           vim.eval( 'a:category' ) )
 endfunction
 
 function! vimspector#ListBreakpoints() abort
@@ -163,10 +162,17 @@ function! vimspector#Install( ... ) abort
     return
   endif
   let prefix = vimspector#internal#state#GetAPIPrefix()
-  py3 << EOF
-from vimspector import installer as vimspector_installer
-vimspector_installer.RunInstaller( vim.eval( 'prefix' ), *vim.eval( 'a:000' ) )
-EOF
+  py3 __import__( 'vimspector',
+        \         fromlist = [ 'installer' ] ).installer.RunInstaller(
+        \           vim.eval( 'prefix' ),
+        \           *vim.eval( 'a:000' ) )
+endfunction
+
+function! vimspector#CompleteInstall( ArgLead, CmdLine, CursorPos ) abort
+  return py3eval( '"\n".join('
+                \ .   '__import__( "vimspector", fromlist = [ "gadgets" ] )'
+                \ .   '.gadgets.GADGETS.keys() '
+                \ . ')' )
 endfunction
 
 " Boilerplate {{{
diff --git a/plugin/vimspector.vim b/plugin/vimspector.vim
index b07a92f..338d034 100644
--- a/plugin/vimspector.vim
+++ b/plugin/vimspector.vim
@@ -99,10 +99,11 @@ command! -bar
       \ call vimspector#Reset()
 
 " Installer commands
-command! -bar -nargs=*
+command! -bar -nargs=* -complete=custom,vimspector#CompleteInstall
       \ VimspectorInstall
       \ call vimspector#Install( <f-args> )
 
+
 " Dummy autocommands so that we can call this whenever
 augroup VimspectorUserAutoCmds
   au!
diff --git a/python3/vimspector/installer.py b/python3/vimspector/installer.py
index eefbd80..33a6a76 100644
--- a/python3/vimspector/installer.py
+++ b/python3/vimspector/installer.py
@@ -85,12 +85,13 @@ def RunInstaller( api_prefix, *args ):
   from vimspector import utils, output, settings
   import vim
 
+  args = GadgetListToInstallerArgs( *args )
+
   vimspector_home = utils.GetVimString( vim.vars, 'vimspector_home' )
   vimspector_base_dir = utils.GetVimspectorBase()
 
   # TODO: Translate the arguments to something more user-friendly than -- args
   global OUTPUT_VIEW
-
   if OUTPUT_VIEW:
     OUTPUT_VIEW.Reset()
     OUTPUT_VIEW = None
@@ -112,10 +113,14 @@ def RunInstaller( api_prefix, *args ):
 
   def handler( exit_code ):
     if exit_code == 0:
-      utils.UserMessage( "Vimspector installation complete!" )
-      vim.command( 'doautocmd User VimspectorInstallSuccess' )
+      global OUTPUT_VIEW
+      if OUTPUT_VIEW:
+        OUTPUT_VIEW.Reset()
+        OUTPUT_VIEW = None
+      utils.UserMessage( "Vimspector gadget installation complete!" )
+      vim.command( 'silent doautocmd User VimspectorInstallSuccess' )
     else:
-      utils.UserMessage( 'Vimspector installation reported errors',
+      utils.UserMessage( 'Vimspector gadget installation reported errors',
                          error = True )
       vim.command( 'silent doautocmd User VimspectorInstallFailed' )
 
@@ -126,6 +131,27 @@ def RunInstaller( api_prefix, *args ):
   OUTPUT_VIEW.ShowOutput( 'Installer' )
 
 
+def GadgetListToInstallerArgs( *gadget_list ):
+  installer_args = []
+  from vimspector import gadgets
+  for name in gadget_list:
+    if name.startswith( '-' ):
+      installer_args.append( name )
+      continue
+
+    try:
+      gadget = gadgets.GADGETS[ name ]
+    except KeyError:
+      continue
+
+    if not gadget.get( 'enabled', True ):
+      installer_args.append( f'--force-enable-{ gadget[ "language" ] }' )
+    else:
+      installer_args.append( f'--enable-{ gadget[ "language" ] }' )
+
+  return installer_args
+
+
 # def Install( languages, force ):
 #   all_enabled = 'all' in languages
 #   force_all = all_enabled and force