diff --git a/branding.conf b/branding.conf
new file mode 100644
index 000000000..e1438bf00
--- /dev/null
+++ b/branding.conf
@@ -0,0 +1,26 @@
+# Branding
+#
+# You are kindly asked to replace all links if you are
+# distributing a build with custom branding.
+#
+# Support will not be provided to your users without
+# prior agreement.
+#
+# You may not make your builds publicly available
+# without modifying the app ID and all relevant files,
+# as it won't be able to co-exist with Tuba.
+#
+# This is mostly aimed at organizations for internal
+# usage, limited to their instances.
+NAME=Tuba
+WEBSITE=https://github.com/GeopJr/Tuba
+ISSUES_WEBSITE=https://github.com/GeopJr/Tuba/issues
+SUPPORT_WEBSITE=https://matrix.to/%23/%23tuba:gnome.org
+DONATE_WEBSITE=https://geopjr.dev/donate
+TRANSLATE_WEBSITE=https://hosted.weblate.org/engage/tuba/
+WIKI_WEBSITE=https://github.com/GeopJr/Tuba/wiki
+# Prefilled instance when logging in.
+# This does not limit your users from
+# logging in to other instances.
+# e.g. faraway.town
+DEFAULT_INSTANCE=
diff --git a/meson.build b/meson.build
index a1eb75b46..f90823bd7 100644
--- a/meson.build
+++ b/meson.build
@@ -19,23 +19,27 @@ endif
 devel = get_option('devel')
 distro = get_option('distro')
 
+branding = import('keyval').load('branding.conf')
+assert(branding.get('NAME') != '', 'Branding: Name cannot be empty.')
+
 # Setup configuration file
 config = configuration_data()
 config.set('EXEC_NAME', meson.project_name())
 config.set('GETTEXT_PACKAGE', meson.project_name())
 config.set('LOCALEDIR', join_paths(get_option('prefix'), get_option('localedir')))
 config.set('DOMAIN', meson.project_name ())
-config.set('G_LOG_DOMAIN', 'Tuba')
+config.set('G_LOG_DOMAIN', branding.get('NAME', 'Tuba'))
 config.set('RESOURCES', '/' + '/'.join(meson.project_name().split('.')) + '/')
 config.set('VERSION', meson.project_version())
 config.set('PREFIX', get_option('prefix'))
-config.set('NAME', 'Tuba')
-config.set('WEBSITE', 'https://github.com/GeopJr/Tuba')
-config.set('ISSUES_WEBSITE', 'https://github.com/GeopJr/Tuba/issues')
-config.set('SUPPORT_WEBSITE', 'https://matrix.to/#/#tuba:gnome.org')
-config.set('DONATE_WEBSITE', 'https://geopjr.dev/donate')
-config.set('TRANSLATE_WEBSITE', 'https://hosted.weblate.org/engage/tuba/')
-config.set('WIKI_WEBSITE', 'https://github.com/GeopJr/Tuba/wiki')
+config.set('NAME', branding.get('NAME', 'Tuba'))
+config.set('WEBSITE', branding.get('WEBSITE', 'https://github.com/GeopJr/Tuba'))
+config.set('ISSUES_WEBSITE', branding.get('ISSUES_WEBSITE', 'https://github.com/GeopJr/Tuba/issues'))
+config.set('SUPPORT_WEBSITE', branding.get('SUPPORT_WEBSITE', 'https://matrix.to/#/#tuba:gnome.org'))
+config.set('DONATE_WEBSITE', branding.get('DONATE_WEBSITE', 'https://geopjr.dev/donate'))
+config.set('TRANSLATE_WEBSITE', branding.get('TRANSLATE_WEBSITE', 'https://hosted.weblate.org/engage/tuba/'))
+config.set('WIKI_WEBSITE', branding.get('WIKI_WEBSITE', 'https://github.com/GeopJr/Tuba/wiki'))
+config.set('DEFAULT_INSTANCE', branding.get('DEFAULT_INSTANCE', ''))
 config.set('PROFILE', devel ? 'development' : 'production')
 
 if devel
@@ -63,7 +67,7 @@ endif
 add_project_arguments(['--vapidir=' + meson.project_source_root() / 'vapi'], language: 'vala')
 add_project_arguments (
   '-DGETTEXT_PACKAGE="@0@"'.format(meson.project_name()),
-  '-DG_LOG_DOMAIN="Tuba"',
+  '-DG_LOG_DOMAIN="@0@"'.format(config.get('G_LOG_DOMAIN')),
   language: 'c'
 )
 
diff --git a/src/Application.vala b/src/Application.vala
index 8804e5398..0763a6fbf 100644
--- a/src/Application.vala
+++ b/src/Application.vala
@@ -481,10 +481,12 @@ namespace Tuba {
 			};
 
 			// translators: Wiki pages / Guides
-			dialog.add_link (_("Wiki"), Build.WIKI_WEBSITE);
-
-			dialog.add_link (_("Translate"), Build.TRANSLATE_WEBSITE);
-			dialog.add_link (_("Donate"), Build.DONATE_WEBSITE);
+			if (Build.WIKI_WEBSITE != "")
+				dialog.add_link (_("Wiki"), Build.WIKI_WEBSITE);
+			if (Build.TRANSLATE_WEBSITE != "")
+				dialog.add_link (_("Translate"), Build.TRANSLATE_WEBSITE);
+			if (Build.DONATE_WEBSITE != "")
+				dialog.add_link (_("Donate"), Build.DONATE_WEBSITE);
 
 			// For some obscure reason, const arrays produce duplicates in the credits.
 			// Static functions seem to avoid this peculiar behavior.
diff --git a/src/Build.vala.in b/src/Build.vala.in
index ebe7548f0..64f1e5dfa 100644
--- a/src/Build.vala.in
+++ b/src/Build.vala.in
@@ -4,6 +4,7 @@ namespace Build {
     public const string DOMAIN = "@DOMAIN@";
     public const string RESOURCES = "@RESOURCES@";
     public const string PROFILE = "@PROFILE@";
+    public const string DEFAULT_INSTANCE = "@DEFAULT_INSTANCE@";
 
     public const string GETTEXT_PACKAGE = "@GETTEXT_PACKAGE@";
     public const string LOCALEDIR = "@LOCALEDIR@";
diff --git a/src/Dialogs/NewAccount.vala b/src/Dialogs/NewAccount.vala
index d0dc77cd5..9678c2b1c 100644
--- a/src/Dialogs/NewAccount.vala
+++ b/src/Dialogs/NewAccount.vala
@@ -47,6 +47,9 @@ public class Tuba.Dialogs.NewAccount: Adw.Window {
 		reset ();
 		present ();
 		instance_entry.grab_focus ();
+
+		if (Build.DEFAULT_INSTANCE != "")
+			instance_entry.text = Build.DEFAULT_INSTANCE;
 	}
 
 	public bool on_manual_auth (string url) {
@@ -130,8 +133,11 @@ public class Tuba.Dialogs.NewAccount: Adw.Window {
 			.with_account (account)
 			.with_form_data ("client_name", Build.NAME)
 			.with_form_data ("redirect_uris", redirect_uri = setup_redirect_uri ())
-			.with_form_data ("scopes", SCOPES)
-			.with_form_data ("website", Build.WEBSITE);
+			.with_form_data ("scopes", SCOPES);
+
+		if (Build.WEBSITE != "")
+			msg.with_form_data ("website", Build.WEBSITE);
+
 		yield msg.await ();
 
 		var parser = Network.get_parser_from_inputstream (msg.response_body);