diff --git a/src/terminal.ts b/src/terminal.ts
index 56564a6..ab6f10d 100644
--- a/src/terminal.ts
+++ b/src/terminal.ts
@@ -43,12 +43,14 @@ async function start () {
         await webRequire(url)
     }
 
+    document.querySelector('app-root')['style'].display = 'flex'
+
     const tabby = window['Tabby']
 
     const pluginURLs = connector.getPluginsToLoad().map(x => `${baseUrl}/${x}`)
-    const pluginModules = await tabby.loadPlugins(pluginURLs)
-
-    document.querySelector('app-root')['style'].display = 'flex'
+    const pluginModules = await tabby.loadPlugins(pluginURLs, (current, total) => {
+        (document.querySelector('.progress .bar') as HTMLElement).style.width = `${100 * current / total}%` // eslint-disable-line
+    })
 
     const config = connector.loadConfig()
     tabby.bootstrap({
diff --git a/tabby/app/management/commands/add_version.py b/tabby/app/management/commands/add_version.py
index 7a96164..aceb1a6 100644
--- a/tabby/app/management/commands/add_version.py
+++ b/tabby/app/management/commands/add_version.py
@@ -25,6 +25,7 @@ class Command(BaseCommand):
             'tabby-terminal',
             'tabby-ssh',
             'tabby-community-color-schemes',
+            'tabby-serial',
             'tabby-web',
             'tabby-web-demo',
         ]