diff --git a/QCommsy.pro b/QCommsy.pro
index 246d72b..b7d4ef1 100644
--- a/QCommsy.pro
+++ b/QCommsy.pro
@@ -32,8 +32,10 @@ FORMS += \
     overview.ui \
     postView.ui
 
-LIBS += -lcurlpp -lcurl
-LIBS += -lgumbo
+LIBS += -lcurlpp -lcurl \
+        -lgumbo
+
+DEFINES += GIT_CURRENT_SHA1="\\\"$(shell git -C \""$$_PRO_FILE_PWD_"\" describe)\\\""
 
 # Default rules for deployment.
 qnx: target.path = /tmp/$${TARGET}/bin
diff --git a/main.cpp b/main.cpp
index 1f81445..6b02c58 100644
--- a/main.cpp
+++ b/main.cpp
@@ -11,6 +11,7 @@
 
 #include <string>
 #include <vector>
+#include <functional>
 
 #include <QMainWindow>
 #include <QApplication>
@@ -121,6 +122,8 @@ void _UILoader::infoWindow() {
                 "<b>App frontend:</b> " QCommsy_NAME " version " QCommsy_VERSION "<br />"
                 "<b>Authentication backend:</b> " libCommsyAuth_NAME " version " libCommsyAuth_VERSION "<br />"
                 "<b>Scrapping backend:</b> " libCommsy_NAME " version " libCommsy_VERSION "<br />"
+                "<b>Git version:</b> " GIT_CURRENT_SHA1 "<br />"
+                "<b>Build ID:</b> " + QString::number(std::hash<std::string>{}(__DATE__ __TIME__)) + "<br />"
                 );
     thisui->buildDateInfo->setText(
                 "Build date:\n"
diff --git a/ui_loader.hpp b/ui_loader.hpp
new file mode 100644
index 0000000..18ce955
--- /dev/null
+++ b/ui_loader.hpp
@@ -0,0 +1,70 @@
+class _UILoader {
+    libCommsy *connector = nullptr;
+    libCommsyAuth *auther = nullptr;
+    bool cacheInvalidate = true;
+
+public:
+    void failureWindow();
+    void overviewWindow(bool catchInvalidRoomError = true);
+    void loginWindow(const QString& failure = "");
+    void infoWindow();
+    void postViewWindow(commsyPost *thispost, QString description);
+    void offlineWindow();
+
+    _UILoader () {
+        auther = new libCommsyAuth();
+    }
+
+    void reconnect() {
+        // Destroy old connector
+        if (connector != nullptr) {
+            if (not cacheInvalidate) {
+                return;
+            }
+            delete connector;
+            connector = nullptr;
+        }
+        cacheInvalidate = false;
+        // Connect to commsy
+        connector = new libCommsy(settings->value("server_url").toString().toStdString(), settings->value("server_sid").toString().toStdString(), settings->value("server_room").toString().toStdString());
+    }
+
+    void logout() {
+        settings->remove("server_sid");
+    }
+
+    void downloadAndOpenFile(QNetworkRequest mNetReq, const QString& filename) {
+        auto mNetMan = new QNetworkAccessManager();
+
+        // Set SID in request so we're authenticated  TODO: think about a cleaner way
+        mNetReq.setRawHeader("Cookie", "SID=" + settings->value("server_sid").toString().toUtf8());
+
+        // Connect to downloading
+        w->connect(mNetMan, &QNetworkAccessManager::finished, [this, mNetMan, filename] (QNetworkReply *mNetReply) {
+            // Save and open downloaded file
+            {
+                // Initialise
+                QString destPath = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation) + '/' + filename;
+                QFile destFile(destPath);
+
+                // Write downloaded data to file
+                if (!destFile.open(QIODevice::WriteOnly)) {
+                    return failureWindow();
+                }
+                destFile.write(mNetReply->readAll());
+                destFile.close();
+
+                // Open file in some application
+                //QDesktopServices::openUrl(destPath);
+                QDesktopServices::openUrl(QUrl::fromLocalFile(destPath));
+            }
+
+            // Clean up
+            mNetMan->deleteLater();
+        });
+
+        // Start download
+        mNetMan->get(mNetReq);
+    }
+
+};