diff --git a/qtox.pro b/qtox.pro
index d42fba74b..3c95c22ba 100644
--- a/qtox.pro
+++ b/qtox.pro
@@ -80,7 +80,8 @@ android {
     ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android
     contains(ANDROID_TARGET_ARCH,armeabi) {
         ANDROID_EXTRA_LIBS = \
-            $$ANDROID_TOOLCHAIN/lib/libopenal.so
+			$$ANDROID_TOOLCHAIN/lib/libopenal.so \
+			$$ANDROID_TOOLCHAIN/lib/libsodium.so
     }
 }
 
@@ -106,7 +107,7 @@ contains(JENKINS,YES) {
 # Rules for Windows, Mac OSX, and Linux
 win32 {
     RC_FILE = windows/qtox.rc
-    LIBS += -L$$PWD/libs/lib -ltoxav -ltoxcore -ltoxencryptsave -ltoxdns -lsodium -lvpx -lpthread
+	LIBS += -L$$PWD/libs/lib -ltoxav -ltoxcore -ltoxencryptsave -ltoxdns -lsodium -lvpx -lpthread
     LIBS += -L$$PWD/libs/lib -lopencv_core249 -lopencv_highgui249 -lopencv_imgproc249 -lOpenAL32 -lopus
     LIBS += -lopengl32 -lole32 -loleaut32 -luuid -lvfw32 -lws2_32 -liphlpapi -lz
 
@@ -229,7 +230,10 @@ HEADERS  += src/widget/form/addfriendform.h \
     src/audio.h \
     src/widget/callconfirmwidget.h \
     src/widget/systemtrayicon.h \
-    src/widget/systemtrayicon_private.h
+    src/widget/systemtrayicon_private.h \
+    src/nexus.h \
+    src/widget/gui.h \
+    src/widget/androidgui.h
 
 SOURCES += \
     src/widget/form/addfriendform.cpp \
@@ -298,7 +302,10 @@ SOURCES += \
     src/widget/form/settings/advancedform.cpp \
     src/audio.cpp \
     src/widget/callconfirmwidget.cpp \
-    src/widget/systemtrayicon.cpp
+    src/widget/systemtrayicon.cpp \
+    src/nexus.cpp \
+    src/widget/gui.cpp \
+    src/widget/androidgui.cpp
 
 contains(DEFINES, QTOX_FILTER_AUDIO) {
     HEADERS += src/audiofilterer.h
diff --git a/src/core.cpp b/src/core.cpp
index 4b82a1d5a..f6fa4463c 100644
--- a/src/core.cpp
+++ b/src/core.cpp
@@ -15,6 +15,7 @@
 */
 
 #include "core.h"
+#include "nexus.h"
 #include "misc/cdata.h"
 #include "misc/cstring.h"
 #include "misc/settings.h"
@@ -106,6 +107,7 @@ Core::~Core()
 {
     qDebug() << "Deleting Core";
 
+    saveConfiguration();
     toxTimer->stop();
     coreThread->exit(0);
     while (coreThread->isRunning())
@@ -128,7 +130,7 @@ Core::~Core()
 
 Core* Core::getInstance()
 {
-    return Widget::getInstance()->getCore();
+    return Nexus::getCore();
 }
 
 void Core::make_tox()
@@ -223,6 +225,8 @@ void Core::make_tox()
 
 void Core::start()
 {
+    qDebug() << "Core: Starting up";
+
     make_tox();
 
     qsrand(time(nullptr));
@@ -1202,8 +1206,7 @@ bool Core::loadConfiguration(QString path)
             {
                 configurationFile.close();
 
-                QString profile;
-                QMetaObject::invokeMethod(Widget::getInstance(), "askProfiles", Qt::BlockingQueuedConnection, Q_RETURN_ARG(QString, profile));
+                QString profile = Settings::getInstance().askProfiles();
 
                 if (!profile.isEmpty())
                 {
diff --git a/src/main.cpp b/src/main.cpp
index a1c3dbdde..8d5ba8934 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -16,6 +16,7 @@
 
 #include "widget/widget.h"
 #include "misc/settings.h"
+#include "src/nexus.h"
 #include "src/ipc.h"
 #include "src/widget/toxuri.h"
 #include "src/widget/toxsave.h"
@@ -70,6 +71,7 @@ int main(int argc, char *argv[])
     parser.process(a);
 
     Settings::getInstance(); // Build our Settings singleton as soon as QApplication is ready, not before
+
     if (parser.isSet("p"))
     {
         QString profile = parser.value("p");
@@ -121,6 +123,8 @@ int main(int argc, char *argv[])
         AutoUpdater::installLocalUpdate(); ///< NORETURN
 #endif
 
+Nexus::getInstance().start();
+
 #ifndef Q_OS_ANDROID
     // Inter-process communication
     IPC ipc;
@@ -180,10 +184,8 @@ int main(int argc, char *argv[])
 
     // Run
     a.setQuitOnLastWindowClosed(false);
-    Widget* w = Widget::getInstance();
     int errorcode = a.exec();
 
-    delete w;
 #ifdef LOG_TO_FILE
     delete logFile;
     logFile = nullptr;
diff --git a/src/misc/settings.cpp b/src/misc/settings.cpp
index 196202865..96b2b2c6e 100644
--- a/src/misc/settings.cpp
+++ b/src/misc/settings.cpp
@@ -18,6 +18,8 @@
 #include "smileypack.h"
 #include "src/corestructs.h"
 #include "src/misc/db/plaindb.h"
+#include "src/core.h"
+#include "src/widget/gui.h"
 
 #include <QFont>
 #include <QApplication>
@@ -65,6 +67,70 @@ void Settings::switchProfile(const QString& profile)
     resetInstance();
 }
 
+QString Settings::detectProfile()
+{
+    QDir dir(getSettingsDirPath());
+    QString path, profile = getCurrentProfile();
+    path = dir.filePath(profile + Core::TOX_EXT);
+    QFile file(path);
+    if (profile.isEmpty() || !file.exists())
+    {
+        setCurrentProfile("");
+#if 1 // deprecation attempt
+        // if the last profile doesn't exist, fall back to old "data"
+        path = dir.filePath(Core::CONFIG_FILE_NAME);
+        QFile file(path);
+        if (file.exists())
+            return path;
+        else if (QFile(path = dir.filePath("tox_save")).exists()) // also import tox_save if no data
+            return path;
+        else
+#endif
+        {
+            profile = askProfiles();
+            if (profile.isEmpty())
+                return "";
+            else
+            {
+                switchProfile(profile);
+                return dir.filePath(profile + Core::TOX_EXT);
+            }
+        }
+    }
+    else
+        return path;
+}
+
+QList<QString> Settings::searchProfiles()
+{
+    QList<QString> out;
+    QDir dir(getSettingsDirPath());
+    dir.setFilter(QDir::Files | QDir::NoDotAndDotDot);
+    dir.setNameFilters(QStringList("*.tox"));
+    for (QFileInfo file : dir.entryInfoList())
+        out += file.completeBaseName();
+    return out;
+}
+
+QString Settings::askProfiles()
+{   // TODO: allow user to create new Tox ID, even if a profile already exists
+    QList<QString> profiles = searchProfiles();
+    if (profiles.empty()) return "";
+    bool ok;
+    QString profile = GUI::itemInputDialog(nullptr,
+                                            tr("Choose a profile"),
+                                            tr("Please choose which identity to use"),
+                                            profiles,
+                                            0, // which slot to start on
+                                            false, // if the user can enter their own input
+                                            &ok);
+    if (!ok) // user cancelled
+        return "";
+    else
+        return profile;
+}
+
+
 void Settings::load()
 {
     if (loaded)
diff --git a/src/misc/settings.h b/src/misc/settings.h
index 391fe1c58..550b79840 100644
--- a/src/misc/settings.h
+++ b/src/misc/settings.h
@@ -33,6 +33,9 @@ public:
     static Settings& getInstance();
     static void resetInstance();
     void switchProfile(const QString& profile);
+    QString detectProfile();
+    QList<QString> searchProfiles();
+    QString askProfiles();
     ~Settings() = default;
 
     void executeSettingsDialog(QWidget* parent);
diff --git a/src/nexus.cpp b/src/nexus.cpp
new file mode 100644
index 000000000..91b65530e
--- /dev/null
+++ b/src/nexus.cpp
@@ -0,0 +1,121 @@
+#include "nexus.h"
+#include "core.h"
+#include "misc/settings.h"
+#include "video/camera.h"
+#include <QThread>
+#include <QDebug>
+
+#ifdef Q_OS_ANDROID
+#include <src/widget/androidgui.h>
+#else
+#include <src/widget/widget.h>
+#endif
+
+Nexus::Nexus(QObject *parent) :
+    QObject(parent),
+    core{nullptr},
+    coreThread{nullptr},
+    widget{nullptr},
+    androidgui{nullptr},
+    started{false}
+{
+}
+
+Nexus::~Nexus()
+{
+    delete core;
+    delete coreThread;
+#ifdef Q_OS_ANDROID
+    delete androidgui;
+#else
+    delete widget;
+#endif
+}
+
+void Nexus::start()
+{
+    if (started)
+        return;
+    qDebug() << "Nexus: Starting up";
+
+    // Setup the environment
+    qRegisterMetaType<Status>("Status");
+    qRegisterMetaType<vpx_image>("vpx_image");
+    qRegisterMetaType<uint8_t>("uint8_t");
+    qRegisterMetaType<uint16_t>("uint16_t");
+    qRegisterMetaType<const int16_t*>("const int16_t*");
+    qRegisterMetaType<int32_t>("int32_t");
+    qRegisterMetaType<int64_t>("int64_t");
+    qRegisterMetaType<QPixmap>("QPixmap");
+    qRegisterMetaType<ToxFile>("ToxFile");
+    qRegisterMetaType<ToxFile::FileDirection>("ToxFile::FileDirection");
+    qRegisterMetaType<Core::PasswordType>("Core::PasswordType");
+
+    // Create Core
+    QString profilePath = Settings::getInstance().detectProfile();
+    coreThread = new QThread(this);
+    coreThread->setObjectName("qTox Core");
+    core = new Core(Camera::getInstance(), coreThread, profilePath);
+    core->moveToThread(coreThread);
+    connect(coreThread, &QThread::started, core, &Core::start);
+
+    // Start GUI
+#ifdef Q_OS_ANDROID
+    androidgui = new AndroidGUI;
+    androidgui->show();
+#else
+    widget = Widget::getInstance();
+#endif
+
+    // Connections
+#ifndef Q_OS_ANDROID
+    connect(core, &Core::connected, widget, &Widget::onConnected);
+    connect(core, &Core::disconnected, widget, &Widget::onDisconnected);
+    connect(core, &Core::failedToStart, widget, &Widget::onFailedToStartCore);
+    connect(core, &Core::badProxy, widget, &Widget::onBadProxyCore);
+    connect(core, &Core::statusSet, widget, &Widget::onStatusSet);
+    connect(core, &Core::usernameSet, widget, &Widget::setUsername);
+    connect(core, &Core::statusMessageSet, widget, &Widget::setStatusMessage);
+    connect(core, &Core::selfAvatarChanged, widget, &Widget::onSelfAvatarLoaded);
+    connect(core, &Core::friendAdded, widget, &Widget::addFriend);
+    connect(core, &Core::failedToAddFriend, widget, &Widget::addFriendFailed);
+    connect(core, &Core::friendUsernameChanged, widget, &Widget::onFriendUsernameChanged);
+    connect(core, &Core::friendStatusChanged, widget, &Widget::onFriendStatusChanged);
+    connect(core, &Core::friendStatusMessageChanged, widget, &Widget::onFriendStatusMessageChanged);
+    connect(core, &Core::friendRequestReceived, widget, &Widget::onFriendRequestReceived);
+    connect(core, &Core::friendMessageReceived, widget, &Widget::onFriendMessageReceived);
+    connect(core, &Core::receiptRecieved, widget, &Widget::onReceiptRecieved);
+    connect(core, &Core::groupInviteReceived, widget, &Widget::onGroupInviteReceived);
+    connect(core, &Core::groupMessageReceived, widget, &Widget::onGroupMessageReceived);
+    connect(core, &Core::groupNamelistChanged, widget, &Widget::onGroupNamelistChanged);
+    connect(core, &Core::groupTitleChanged, widget, &Widget::onGroupTitleChanged);
+    connect(core, &Core::emptyGroupCreated, widget, &Widget::onEmptyGroupCreated);
+    connect(core, &Core::avInvite, widget, &Widget::playRingtone);
+    connect(core, &Core::blockingClearContacts, widget, &Widget::clearContactsList, Qt::BlockingQueuedConnection);
+    connect(core, &Core::friendTypingChanged, widget, &Widget::onFriendTypingChanged);
+
+    connect(core, SIGNAL(messageSentResult(int,QString,int)), widget, SLOT(onMessageSendResult(int,QString,int)));
+    connect(core, SIGNAL(groupSentResult(int,QString,int)), widget, SLOT(onGroupSendResult(int,QString,int)));
+
+    connect(widget, &Widget::statusSet, core, &Core::setStatus);
+    connect(widget, &Widget::friendRequested, core, &Core::requestFriendship);
+    connect(widget, &Widget::friendRequestAccepted, core, &Core::acceptFriendRequest);
+    connect(widget, &Widget::changeProfile, core, &Core::switchConfiguration);
+#endif
+
+    // Start Core
+    coreThread->start();
+
+    started = true;
+}
+
+Nexus& Nexus::getInstance()
+{
+    static Nexus nexus;
+    return nexus;
+}
+
+Core* Nexus::getCore()
+{
+    return getInstance().core;
+}
diff --git a/src/nexus.h b/src/nexus.h
new file mode 100644
index 000000000..f8b5dd4b5
--- /dev/null
+++ b/src/nexus.h
@@ -0,0 +1,35 @@
+#ifndef NEXUS_H
+#define NEXUS_H
+
+#include <QObject>
+
+class QThread;
+class Core;
+class Widget;
+class AndroidGUI;
+
+/// This class is in charge of connecting various systems together
+/// and forwarding signals appropriately to the right objects
+/// It is in charge of starting the GUI and the Core
+class Nexus : public QObject
+{
+    Q_OBJECT
+public:
+    void start(); ///< Will initialise the systems (GUI, Core, ...)
+
+    static Nexus& getInstance();
+    static Core* getCore(); ///< Will return 0 if not started
+
+private:
+    explicit Nexus(QObject *parent = 0);
+    ~Nexus();
+
+private:
+    Core* core;
+    QThread* coreThread;
+    Widget* widget;
+    AndroidGUI* androidgui;
+    bool started;
+};
+
+#endif // NEXUS_H
diff --git a/src/widget/androidgui.cpp b/src/widget/androidgui.cpp
new file mode 100644
index 000000000..7ae41d983
--- /dev/null
+++ b/src/widget/androidgui.cpp
@@ -0,0 +1,13 @@
+#include "androidgui.h"
+#include <QLabel>
+
+AndroidGUI::AndroidGUI(QWidget *parent) :
+    QWidget(parent)
+{
+    l = new QLabel("qTox Android", this);
+}
+
+AndroidGUI::~AndroidGUI()
+{
+    delete l;
+}
diff --git a/src/widget/androidgui.h b/src/widget/androidgui.h
new file mode 100644
index 000000000..853483ce2
--- /dev/null
+++ b/src/widget/androidgui.h
@@ -0,0 +1,19 @@
+#ifndef ANDROIDGUI_H
+#define ANDROIDGUI_H
+
+#include <QWidget>
+
+class QLabel;
+
+class AndroidGUI : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit AndroidGUI(QWidget *parent = 0);
+    ~AndroidGUI();
+
+private:
+    QLabel* l;
+};
+
+#endif // ANDROIDGUI_H
diff --git a/src/widget/form/settings/identityform.cpp b/src/widget/form/settings/identityform.cpp
index 8d067b606..a856af1b5 100644
--- a/src/widget/form/settings/identityform.cpp
+++ b/src/widget/form/settings/identityform.cpp
@@ -111,7 +111,7 @@ void IdentityForm::present()
     toxId->setText(Core::getInstance()->getSelfId().toString());
     toxId->setCursorPosition(0);
     bodyUI->profiles->clear();
-    for (QString profile : Widget::searchProfiles())
+    for (QString profile : Settings::getInstance().searchProfiles())
         bodyUI->profiles->addItem(profile);
     QString current = Settings::getInstance().getCurrentProfile();
     if (current != "")
diff --git a/src/widget/gui.cpp b/src/widget/gui.cpp
new file mode 100644
index 000000000..76f77e8db
--- /dev/null
+++ b/src/widget/gui.cpp
@@ -0,0 +1,47 @@
+#include "gui.h"
+#include <QCoreApplication>
+#include <QInputDialog>
+#include <QThread>
+
+GUI::GUI(QObject *parent) :
+    QObject(parent)
+{
+}
+
+GUI& GUI::getInstance()
+{
+    static GUI gui;
+    return gui;
+}
+
+QString GUI::itemInputDialog(QWidget * parent, const QString & title,
+                    const QString & label, const QStringList & items,
+                    int current, bool editable, bool * ok,
+                    Qt::WindowFlags flags,
+                    Qt::InputMethodHints hints)
+{
+    if (QThread::currentThread() == qApp->thread())
+    {
+        return getInstance()._itemInputDialog(parent, title, label, items, current, editable, ok, flags, hints);
+    }
+    else
+    {
+        QString r;
+        QMetaObject::invokeMethod(&getInstance(), "_itemInputDialog", Qt::BlockingQueuedConnection,
+                    Q_RETURN_ARG(QString, r),
+                    Q_ARG(QWidget*, parent), Q_ARG(const QString&, title),
+                    Q_ARG(const QString&,label), Q_ARG(const QStringList&, items),
+                    Q_ARG(int, current), Q_ARG(bool, editable), Q_ARG(bool*, ok),
+                    Q_ARG(Qt::WindowFlags, flags), Q_ARG(Qt::InputMethodHints, hints));
+        return r;
+    }
+}
+
+QString GUI::_itemInputDialog(QWidget * parent, const QString & title,
+                              const QString & label, const QStringList & items,
+                              int current, bool editable, bool * ok,
+                              Qt::WindowFlags flags,
+                              Qt::InputMethodHints hints)
+{
+    return QInputDialog::getItem(parent, title, label, items, current, editable, ok, flags, hints);
+}
diff --git a/src/widget/gui.h b/src/widget/gui.h
new file mode 100644
index 000000000..7a7f70339
--- /dev/null
+++ b/src/widget/gui.h
@@ -0,0 +1,33 @@
+#ifndef GUI_H
+#define GUI_H
+
+#include <QObject>
+
+class QWidget;
+
+/// Abstracts the GUI from the target backend (AndroidGUI, DesktopGUI, ...)
+/// All the functions exposed here are thread-safe
+/// Prefer calling this class to calling a GUI backend directly
+class GUI : public QObject
+{
+    Q_OBJECT
+public:
+    static GUI& getInstance();
+    static QString itemInputDialog(QWidget * parent, const QString & title,
+                    const QString & label, const QStringList & items,
+                    int current = 0, bool editable = true, bool * ok = 0,
+                    Qt::WindowFlags flags = 0,
+                    Qt::InputMethodHints hints = Qt::ImhNone);
+
+private:
+    explicit GUI(QObject *parent = 0);
+
+private slots:
+    QString _itemInputDialog(QWidget * parent, const QString & title,
+                        const QString & label, const QStringList & items,
+                        int current = 0, bool editable = true, bool * ok = 0,
+                        Qt::WindowFlags flags = 0,
+                        Qt::InputMethodHints inputMethodHints = Qt::ImhNone);
+};
+
+#endif // GUI_H
diff --git a/src/widget/widget.cpp b/src/widget/widget.cpp
index cca091025..3a5d5ee5c 100644
--- a/src/widget/widget.cpp
+++ b/src/widget/widget.cpp
@@ -36,6 +36,7 @@
 #include "src/audio.h"
 #include "src/platform/timer.h"
 #include "systemtrayicon.h"
+#include "src/nexus.h"
 #include <QMessageBox>
 #include <QDebug>
 #include <QFile>
@@ -194,67 +195,15 @@ void Widget::init()
 
     Style::setThemeColor(Settings::getInstance().getThemeColor());
     Style::applyTheme();
-
-    qRegisterMetaType<Status>("Status");
-    qRegisterMetaType<vpx_image>("vpx_image");
-    qRegisterMetaType<uint8_t>("uint8_t");
-    qRegisterMetaType<uint16_t>("uint16_t");
-    qRegisterMetaType<const int16_t*>("const int16_t*");
-    qRegisterMetaType<int32_t>("int32_t");
-    qRegisterMetaType<int64_t>("int64_t");
-    qRegisterMetaType<QPixmap>("QPixmap");
-    qRegisterMetaType<ToxFile>("ToxFile");
-    qRegisterMetaType<ToxFile::FileDirection>("ToxFile::FileDirection");
-    qRegisterMetaType<Core::PasswordType>("Core::PasswordType");
-
-    QString profilePath = detectProfile();
-    coreThread = new QThread(this);
-    coreThread->setObjectName("qTox Core");
-    core = new Core(Camera::getInstance(), coreThread, profilePath);
-    core->moveToThread(coreThread);
-    connect(coreThread, &QThread::started, core, &Core::start);
     
     filesForm = new FilesForm();
     addFriendForm = new AddFriendForm;
     settingsWidget = new SettingsWidget();
 
-    connect(settingsWidget, &SettingsWidget::setShowSystemTray, this, &Widget::onSetShowSystemTray);
-
-    connect(core, &Core::connected, this, &Widget::onConnected);
-    connect(core, &Core::disconnected, this, &Widget::onDisconnected);
-    connect(core, &Core::failedToStart, this, &Widget::onFailedToStartCore);
-    connect(core, &Core::badProxy, this, &Widget::onBadProxyCore);
-    connect(core, &Core::statusSet, this, &Widget::onStatusSet);
-    connect(core, &Core::usernameSet, this, &Widget::setUsername);
-    connect(core, &Core::statusMessageSet, this, &Widget::setStatusMessage);
-    connect(core, &Core::selfAvatarChanged, this, &Widget::onSelfAvatarLoaded);
+    Core* core = Nexus::getCore();
     connect(core, SIGNAL(fileDownloadFinished(const QString&)), filesForm, SLOT(onFileDownloadComplete(const QString&)));
     connect(core, SIGNAL(fileUploadFinished(const QString&)), filesForm, SLOT(onFileUploadComplete(const QString&)));
-    connect(core, &Core::friendAdded, this, &Widget::addFriend);
-    connect(core, &Core::failedToAddFriend, this, &Widget::addFriendFailed);
-    connect(core, &Core::friendUsernameChanged, this, &Widget::onFriendUsernameChanged);
-    connect(core, &Core::friendStatusChanged, this, &Widget::onFriendStatusChanged);
-    connect(core, &Core::friendStatusMessageChanged, this, &Widget::onFriendStatusMessageChanged);
-    connect(core, &Core::friendRequestReceived, this, &Widget::onFriendRequestReceived);
-    connect(core, &Core::friendMessageReceived, this, &Widget::onFriendMessageReceived);
-    connect(core, &Core::receiptRecieved, this, &Widget::onReceiptRecieved);
-    connect(core, &Core::groupInviteReceived, this, &Widget::onGroupInviteReceived);
-    connect(core, &Core::groupMessageReceived, this, &Widget::onGroupMessageReceived);
-    connect(core, &Core::groupNamelistChanged, this, &Widget::onGroupNamelistChanged);
-    connect(core, &Core::groupTitleChanged, this, &Widget::onGroupTitleChanged);
-    connect(core, &Core::emptyGroupCreated, this, &Widget::onEmptyGroupCreated);
-    connect(core, &Core::avInvite, this, &Widget::playRingtone);
-    connect(core, &Core::blockingClearContacts, this, &Widget::clearContactsList, Qt::BlockingQueuedConnection);
-    connect(core, &Core::friendTypingChanged, this, &Widget::onFriendTypingChanged);
-
-    connect(core, SIGNAL(messageSentResult(int,QString,int)), this, SLOT(onMessageSendResult(int,QString,int)));
-    connect(core, SIGNAL(groupSentResult(int,QString,int)), this, SLOT(onGroupSendResult(int,QString,int)));
-
-    connect(this, &Widget::statusSet, core, &Core::setStatus);
-    connect(this, &Widget::friendRequested, core, &Core::requestFriendship);
-    connect(this, &Widget::friendRequestAccepted, core, &Core::acceptFriendRequest);
-    connect(this, &Widget::changeProfile, core, &Core::switchConfiguration);
-
+    connect(settingsWidget, &SettingsWidget::setShowSystemTray, this, &Widget::onSetShowSystemTray);
     connect(ui->addButton, SIGNAL(clicked()), this, SLOT(onAddClicked()));
     connect(ui->groupButton, SIGNAL(clicked()), this, SLOT(onGroupClicked()));
     connect(ui->transferButton, SIGNAL(clicked()), this, SLOT(onTransferClicked()));
@@ -270,8 +219,6 @@ void Widget::init()
     connect(timer, &QTimer::timeout, this, &Widget::onUserAwayCheck);
     connect(timer, &QTimer::timeout, this, &Widget::onEventIconTick);
 
-    coreThread->start();
-
     addFriendForm->show(*ui);
 
 #if (AUTOUPDATE_ENABLED)
@@ -318,9 +265,7 @@ void Widget::updateTrayIcon()
 Widget::~Widget()
 {
     qDebug() << "Deleting Widget";
-    core->saveConfiguration();
     AutoUpdater::abortUpdates();
-    delete core;
     icon->hide();
     hideMainForms();
     delete settingsWidget;
@@ -346,11 +291,6 @@ Widget* Widget::getInstance()
     return instance;
 }
 
-QThread* Widget::getCoreThread()
-{
-    return coreThread;
-}
-
 void Widget::closeEvent(QCloseEvent *event)
 {
     if (Settings::getInstance().getShowSystemTray() && Settings::getInstance().getCloseToTray() == true)
@@ -386,72 +326,9 @@ void Widget::resizeEvent(QResizeEvent *event)
     emit resized();
 }
 
-QString Widget::detectProfile()
-{
-    QDir dir(Settings::getSettingsDirPath());
-    QString path, profile = Settings::getInstance().getCurrentProfile();
-    path = dir.filePath(profile + Core::TOX_EXT);
-    QFile file(path);
-    if (profile.isEmpty() || !file.exists())
-    {
-        Settings::getInstance().setCurrentProfile("");
-#if 1 // deprecation attempt
-        // if the last profile doesn't exist, fall back to old "data"
-        path = dir.filePath(Core::CONFIG_FILE_NAME);
-        QFile file(path);
-        if (file.exists())
-            return path;
-        else if (QFile(path = dir.filePath("tox_save")).exists()) // also import tox_save if no data
-            return path;
-        else
-#endif
-        {
-            profile = askProfiles();
-            if (profile.isEmpty())
-                return "";
-            else
-            {
-                Settings::getInstance().switchProfile(profile);
-                return dir.filePath(profile + Core::TOX_EXT);
-            }
-        }
-    }
-    else
-        return path;
-}
-
-QList<QString> Widget::searchProfiles()
-{
-    QList<QString> out;
-    QDir dir(Settings::getSettingsDirPath());
-    dir.setFilter(QDir::Files | QDir::NoDotAndDotDot);
-    dir.setNameFilters(QStringList("*.tox"));
-    for (QFileInfo file : dir.entryInfoList())
-        out += file.completeBaseName();
-    return out;
-}
-
-QString Widget::askProfiles()
-{   // TODO: allow user to create new Tox ID, even if a profile already exists
-    QList<QString> profiles = searchProfiles();
-    if (profiles.empty()) return "";
-    bool ok;
-    QString profile = QInputDialog::getItem(this, 
-                                            tr("Choose a profile"),
-                                            tr("Please choose which identity to use"),
-                                            profiles,
-                                            0, // which slot to start on
-                                            false, // if the user can enter their own input
-                                            &ok);
-    if (!ok) // user cancelled
-        return "";
-    else
-        return profile;
-}
-
 QString Widget::getUsername()
 {
-    return core->getUsername();
+    return Nexus::getCore()->getUsername();
 }
 
 void Widget::onAvatarClicked()
@@ -495,7 +372,7 @@ void Widget::onAvatarClicked()
         return;
     }
 
-    core->setAvatar(TOX_AVATAR_FORMAT_PNG, bytes);
+    Nexus::getCore()->setAvatar(TOX_AVATAR_FORMAT_PNG, bytes);
 }
 
 void Widget::onSelfAvatarLoaded(const QPixmap& pic)
@@ -591,7 +468,7 @@ void Widget::onAddClicked()
 
 void Widget::onGroupClicked()
 {
-    core->createGroup();
+    Nexus::getCore()->createGroup();
 }
 
 void Widget::onTransferClicked()
@@ -664,7 +541,7 @@ void Widget::hideMainForms()
 void Widget::onUsernameChanged(const QString& newUsername, const QString& oldUsername)
 {
     setUsername(oldUsername);               // restore old username until Core tells us to set it
-    core->setUsername(newUsername);
+    Nexus::getCore()->setUsername(newUsername);
 }
 
 void Widget::setUsername(const QString& username)
@@ -681,7 +558,7 @@ void Widget::onStatusMessageChanged(const QString& newStatusMessage, const QStri
 {
     ui->statusLabel->setText(oldStatusMessage); // restore old status message until Core tells us to set it
     ui->statusLabel->setToolTip(oldStatusMessage); // for overlength messsages
-    core->setStatusMessage(newStatusMessage);
+    Nexus::getCore()->setStatusMessage(newStatusMessage);
 }
 
 void Widget::setStatusMessage(const QString &statusMessage)
@@ -707,6 +584,7 @@ void Widget::addFriend(int friendId, const QString &userId)
     if (Settings::getInstance().getEnableLogging())
         newfriend->getChatForm()->loadHistory(QDateTime::currentDateTime().addDays(-7), true);
 
+    Core* core = Nexus::getCore();
     connect(settingsWidget, &SettingsWidget::compactToggled, newfriend->getFriendWidget(), &GenericChatroomWidget::onCompactChanged);
     connect(newfriend->getFriendWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*)), this, SLOT(onChatroomWidgetClicked(GenericChatroomWidget*)));
     connect(newfriend->getFriendWidget(), SIGNAL(removeFriend(int)), this, SLOT(removeFriend(int)));
@@ -928,7 +806,7 @@ void Widget::removeFriend(Friend* f, bool fake)
         onAddClicked();
     }
     FriendList::removeFriend(f->getFriendID(), fake);
-    core->removeFriend(f->getFriendID(), fake);
+    Nexus::getCore()->removeFriend(f->getFriendID(), fake);
     delete f;
     if (ui->mainHead->layout()->isEmpty())
         onAddClicked();
@@ -959,7 +837,7 @@ void Widget::copyFriendIdToClipboard(int friendId)
     if (f != nullptr)
     {
         QClipboard *clipboard = QApplication::clipboard();
-        clipboard->setText(core->getFriendAddress(f->getFriendID()), QClipboard::Clipboard);
+        clipboard->setText(Nexus::getCore()->getFriendAddress(f->getFriendID()), QClipboard::Clipboard);
     }
 }
 
@@ -967,7 +845,7 @@ void Widget::onGroupInviteReceived(int32_t friendId, uint8_t type, QByteArray in
 {
     if (type == TOX_GROUPCHAT_TYPE_TEXT || type == TOX_GROUPCHAT_TYPE_AV)
     {
-        int groupId = core->joinGroupchat(friendId, type, (uint8_t*)invite.data(), invite.length());
+        int groupId = Nexus::getCore()->joinGroupchat(friendId, type, (uint8_t*)invite.data(), invite.length());
         if (groupId < 0)
         {
             qWarning() << "Widget::onGroupInviteReceived: Unable to accept  group invite";
@@ -1014,7 +892,7 @@ void Widget::onGroupNamelistChanged(int groupnumber, int peernumber, uint8_t Cha
         g = createGroup(groupnumber);
     }
 
-    QString name = core->getGroupPeerName(groupnumber, peernumber);
+    QString name = Nexus::getCore()->getGroupPeerName(groupnumber, peernumber);
     TOX_CHAT_CHANGE change = static_cast<TOX_CHAT_CHANGE>(Change);
     if (change == TOX_CHAT_CHANGE_PEER_ADD)
     {
@@ -1033,7 +911,7 @@ void Widget::onGroupNamelistChanged(int groupnumber, int peernumber, uint8_t Cha
         //g->chatForm->addSystemInfoMessage(tr("%1 has left the chat").arg(name), "silver");
     }
     else if (change == TOX_CHAT_CHANGE_PEER_NAME) // core overwrites old name before telling us it changed...
-        g->updatePeer(peernumber,core->getGroupPeerName(groupnumber, peernumber));
+        g->updatePeer(peernumber,Nexus::getCore()->getGroupPeerName(groupnumber, peernumber));
 }
 
 void Widget::onGroupTitleChanged(int groupnumber, const QString& author, const QString& title)
@@ -1056,7 +934,7 @@ void Widget::removeGroup(Group* g, bool fake)
         onAddClicked();
     }
     GroupList::removeGroup(g->getGroupId(), fake);
-    core->removeGroup(g->getGroupId(), fake);
+    Nexus::getCore()->removeGroup(g->getGroupId(), fake);
     delete g;
     if (ui->mainHead->layout()->isEmpty())
         onAddClicked();
@@ -1070,11 +948,6 @@ void Widget::removeGroup(int groupId)
     removeGroup(GroupList::findGroup(groupId));
 }
 
-Core *Widget::getCore()
-{
-    return core;
-}
-
 Group *Widget::createGroup(int groupId)
 {
     Group* g = GroupList::findGroup(groupId);
@@ -1090,6 +963,7 @@ Group *Widget::createGroup(int groupId)
     layout->addWidget(newgroup->getGroupWidget());
     newgroup->getGroupWidget()->updateStatusLight();
 
+    Core* core = Nexus::getCore();
     connect(newgroup->getGroupWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*)), this, SLOT(onChatroomWidgetClicked(GenericChatroomWidget*)));
     connect(newgroup->getGroupWidget(), SIGNAL(removeGroup(int)), this, SLOT(removeGroup(int)));
     connect(newgroup->getGroupWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*)), newgroup->getChatForm(), SLOT(focusInput()));
@@ -1174,17 +1048,17 @@ void Widget::onEventIconTick()
 
 void Widget::setStatusOnline()
 {
-    core->setStatus(Status::Online);
+    Nexus::getCore()->setStatus(Status::Online);
 }
 
 void Widget::setStatusAway()
 {
-    core->setStatus(Status::Away);
+    Nexus::getCore()->setStatus(Status::Away);
 }
 
 void Widget::setStatusBusy()
 {
-    core->setStatus(Status::Busy);
+    Nexus::getCore()->setStatus(Status::Busy);
 }
 
 void Widget::onMessageSendResult(int friendId, const QString& message, int messageId)
diff --git a/src/widget/widget.h b/src/widget/widget.h
index 0a8307cbe..f43a301f7 100644
--- a/src/widget/widget.h
+++ b/src/widget/widget.h
@@ -54,14 +54,11 @@ public:
     explicit Widget(QWidget *parent = 0);
     void setCentralWidget(QWidget *widget, const QString &widgetName);
     QString getUsername();
-    Core* getCore();
-    QThread* getCoreThread();
     Camera* getCamera();
     static Widget* getInstance();
     void newMessageAlert(GenericChatroomWidget* chat);
     bool isFriendWidgetCurActiveWidget(Friend* f);
     bool getIsWindowMinimized();
-    static QList<QString> searchProfiles();
     void clearContactsList();
     void setTranslation();
     void updateTrayIcon();
@@ -69,7 +66,6 @@ public:
     Q_INVOKABLE void setEnabledThreadsafe(bool enabled);
     Q_INVOKABLE bool askQuestion(const QString& title, const QString& msg, bool defaultAns = false, bool warning = true);
     Q_INVOKABLE QString passwordDialog(const QString& cancel, const QString& body);
-    Q_INVOKABLE QString askProfiles();
     // hooray for threading hacks
     ~Widget();
 
@@ -86,6 +82,29 @@ public slots:
     void onSettingsClicked();
     void setWindowTitle(const QString& title);
     void forceShow();
+    void onConnected();
+    void onDisconnected();
+    void onStatusSet(Status status);
+    void onFailedToStartCore();
+    void onBadProxyCore();
+    void onSelfAvatarLoaded(const QPixmap &pic);
+    void setUsername(const QString& username);
+    void setStatusMessage(const QString &statusMessage);
+    void addFriend(int friendId, const QString& userId);
+    void addFriendFailed(const QString& userId, const QString& errorInfo = QString());
+    void onFriendStatusChanged(int friendId, Status status);
+    void onFriendStatusMessageChanged(int friendId, const QString& message);
+    void onFriendUsernameChanged(int friendId, const QString& username);
+    void onFriendMessageReceived(int friendId, const QString& message, bool isAction);
+    void onFriendRequestReceived(const QString& userId, const QString& message);
+    void onReceiptRecieved(int friendId, int receipt);
+    void onEmptyGroupCreated(int groupId);
+    void onGroupInviteReceived(int32_t friendId, uint8_t type, QByteArray invite);
+    void onGroupMessageReceived(int groupnumber, int peernumber, const QString& message, bool isAction);
+    void onGroupNamelistChanged(int groupnumber, int peernumber, uint8_t change);
+    void onGroupTitleChanged(int groupnumber, const QString& author, const QString& title);
+    void playRingtone();
+    void onFriendTypingChanged(int friendId, bool isTyping);
 
 signals:
     void friendRequestAccepted(const QString& userId);
@@ -98,34 +117,13 @@ signals:
     void resized();
 
 private slots:
-    void onConnected();
-    void onDisconnected();
-    void onStatusSet(Status status);
     void onAddClicked();
     void onGroupClicked();
     void onTransferClicked();
-    void onFailedToStartCore();
-    void onBadProxyCore();
     void onAvatarClicked();
-    void onSelfAvatarLoaded(const QPixmap &pic);
     void onUsernameChanged(const QString& newUsername, const QString& oldUsername);
     void onStatusMessageChanged(const QString& newStatusMessage, const QString& oldStatusMessage);
-    void setUsername(const QString& username);
-    void setStatusMessage(const QString &statusMessage);
-    void addFriend(int friendId, const QString& userId);
-    void addFriendFailed(const QString& userId, const QString& errorInfo = QString());
-    void onFriendStatusChanged(int friendId, Status status);
-    void onFriendStatusMessageChanged(int friendId, const QString& message);
-    void onFriendUsernameChanged(int friendId, const QString& username);
     void onChatroomWidgetClicked(GenericChatroomWidget *);
-    void onFriendMessageReceived(int friendId, const QString& message, bool isAction);
-    void onFriendRequestReceived(const QString& userId, const QString& message);
-    void onReceiptRecieved(int friendId, int receipt);
-    void onEmptyGroupCreated(int groupId);
-    void onGroupInviteReceived(int32_t friendId, uint8_t type, QByteArray invite);
-    void onGroupMessageReceived(int groupnumber, int peernumber, const QString& message, bool isAction);
-    void onGroupNamelistChanged(int groupnumber, int peernumber, uint8_t change);
-    void onGroupTitleChanged(int groupnumber, const QString& author, const QString& title);
     void removeFriend(int friendId);
     void copyFriendIdToClipboard(int friendId);
     void removeGroup(int groupId);
@@ -134,11 +132,9 @@ private slots:
     void setStatusBusy();
     void onMessageSendResult(int friendId, const QString& message, int messageId);
     void onGroupSendResult(int groupId, const QString& message, int result);
-    void playRingtone();
     void onIconClick(QSystemTrayIcon::ActivationReason);
     void onUserAwayCheck();
     void onEventIconTick();
-    void onFriendTypingChanged(int friendId, bool isTyping);
     void onSetShowSystemTray(bool newValue);
     void onSplitterMoved(int pos, int index);
 
@@ -151,7 +147,6 @@ private:
     void removeGroup(Group* g, bool fake = false);
     void saveWindowGeometry();
     void saveSplitterGeometry();
-    QString detectProfile();
     SystemTrayIcon *icon;
     QMenu *trayMenu;
     QAction *statusOnline,
@@ -162,8 +157,6 @@ private:
     Ui::MainWindow *ui;
     QSplitter *centralLayout;
     QPoint dragPosition;
-    Core* core;
-    QThread* coreThread;
     AddFriendForm* addFriendForm;
     SettingsWidget* settingsWidget;
     FilesForm* filesForm;