diff --git a/CMakeLists.txt b/CMakeLists.txt
index 55cf361..792ca3e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,11 +6,11 @@ set(CMAKE_AUTOUIC ON)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTORCC ON)
 
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets LinguistTools)
-find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets LinguistTools)
+find_package(QT NAMES Qt6 REQUIRED COMPONENTS Widgets)
+find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
 
 set(TS_FILES RenpyTranslationHelper_en_GB.ts)
 
@@ -32,7 +32,7 @@ if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
 #                 ${CMAKE_CURRENT_SOURCE_DIR}/android)
 # For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
 
-    qt_create_translation(QM_FILES ${CMAKE_SOURCE_DIR} ${TS_FILES})
+#    qt_create_translation(QM_FILES ${CMAKE_SOURCE_DIR} ${TS_FILES})
 else()
     if(ANDROID)
         add_library(RenpyTranslationHelper SHARED
@@ -51,7 +51,7 @@ endif()
 
 target_link_libraries(RenpyTranslationHelper PRIVATE
     Qt${QT_VERSION_MAJOR}::Widgets
-    Qt5Network
+    Qt6Network
 )
 
 # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
diff --git a/main.cpp b/main.cpp
index c2d5bae..8a59ba0 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,15 +8,6 @@ int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
 
-    QTranslator translator;
-    const QStringList uiLanguages = QLocale::system().uiLanguages();
-    for (const QString &locale : uiLanguages) {
-        const QString baseName = "RenpyTranslationHelper_" + QLocale(locale).name();
-        if (translator.load(":/i18n/" + baseName)) {
-            a.installTranslator(&translator);
-            break;
-        }
-    }
     MainWindow w;
     w.show();
     return a.exec();
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 1fce3fe..4f4efb6 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,5 +1,6 @@
 #include "mainwindow.h"
 #include "./ui_mainwindow.h"
+#include <utility>
 #include <QFileDialog>
 #include <QMessageBox>
 #include <QDir>
@@ -43,15 +44,7 @@ MainWindow::MainWindow(QWidget *parent)
     if (configuration.contains("last-dir") && (QDir()).exists(configuration["last-dir"].toString())) {
         ui->projectDir->setText(configuration["last-dir"].toString());
         crawlProject();
-        qDebug() << "project crawled";
-        qDebug() << configuration["last-language"].toString();
-        qDebug() << ui->languageCombo->count();
-        for (int i=0; i < ui->languageCombo->count(); ++i) {
-            qDebug() << ui->languageCombo->itemText(i);
-        }
-        qDebug() << ui->languageCombo->findText(configuration["last-language"].toString());
         if (configuration.contains("last-language") && ui->languageCombo->findText(configuration["last-language"].toString()) >= 0) {
-            qDebug() << "language crawl";
             ui->languageCombo->setCurrentText(configuration["last-language"].toString());
         }
     }
@@ -99,15 +92,8 @@ void MainWindow::crawlProject() {
     ui->languageCombo->setCurrentIndex(-1);
 }
 
-void MainWindow::on_reloadButton_clicked()
-{
-    crawlProject();
-}
-
-
 void MainWindow::on_languageCombo_currentTextChanged(const QString &selectedLanguage)
 {
-    qDebug() << "language selected";
     setConfigValue("last-language", selectedLanguage);
     fileContentsMap.clear();
     ui->treeWidget->clear();
@@ -138,7 +124,7 @@ void MainWindow::populateTreeWidgetFromMap() {
         fileItem->setText(0, fileName);
         fileItem->setData(0, Qt::UserRole, false);
         auto parsedBlocks = parseTextBlock(pair.second);
-        for (const auto& block : qAsConst(parsedBlocks)) {
+        for (const auto& block : std::as_const(parsedBlocks)) {
             QTreeWidgetItem *blockItem = new QTreeWidgetItem(fileItem);
             blockItem->setText(0, QString::number(block.line));
             blockItem->setText(1, block.oldText);
@@ -163,9 +149,10 @@ QVector<MainWindow::TranslationItem> MainWindow::parseTextBlock(const QString& i
     QString identifier, originalText, translatedText;
     for (const QString& line : std::as_const(lines)) {
         if (line.contains("# game/")) {
-            QRegExp regExp("# game/.+:(\\d+)");
-            if (regExp.indexIn(line.trimmed()) != -1) {
-                lineNumber = regExp.cap(1).toInt();
+            QRegularExpression regExp("# game/.+:(\\d+)");
+            QRegularExpressionMatch match = regExp.match(line.trimmed());
+            if (match.hasMatch()) {
+                lineNumber = match.captured(1).toInt();
             }
         } else if (line.startsWith("    # ") || line.startsWith("    old ")) {
             originalText = line.mid(line.indexOf("\"") + 1).trimmed();
@@ -565,31 +552,34 @@ void MainWindow::on_searchButton_clicked() {
         searchNext();
     }
 }
+
 void MainWindow::on_searchNextButton_clicked() {
+    if (searchQuery.isEmpty()) {
+        return;
+    }
+    qDebug() << "clicked";
     searchNext();
 }
 
-void MainWindow::searchInTree(QTreeWidgetItem *item, const QString &query) {
-    for (int i = 0; i < item->childCount(); ++i) {
-        QTreeWidgetItem *childItem = item->child(i);
-        for (int column = 1; column <= 2; ++column) {
-            if (childItem->text(column).contains(query, Qt::CaseInsensitive)) {
-                ui->treeWidget->setCurrentItem(childItem);
-                ui->treeWidget->scrollToItem(childItem);
+void MainWindow::searchNext() {
+    auto currentItem = ui->treeWidget->currentItem();
+    for (int fileItemPos = 0; fileItemPos < ui->treeWidget->invisibleRootItem()->childCount(); ++fileItemPos) {
+        auto fileItem {ui->treeWidget->invisibleRootItem()->child(fileItemPos)};
+        for (int linePos = 0; linePos < fileItem->childCount(); ++linePos) {
+            auto line {fileItem->child(linePos)};
+            if (currentItem == NULL && (line->text(1).contains(searchQuery, Qt::CaseInsensitive)
+                    || line->text(2).contains(searchQuery, Qt::CaseInsensitive))) {
+                ui->treeWidget->setCurrentItem(line);
+                ui->treeWidget->scrollToItem(line);
                 return;
             }
+            if (currentItem == line) {
+                currentItem = NULL;
+            }
         }
-        searchInTree(childItem, query);
     }
 }
 
-void MainWindow::searchNext() {
-    if (searchQuery.isEmpty()) return;
-    QTreeWidgetItem *startItem = ui->treeWidget->currentItem();
-    if (!startItem) startItem = ui->treeWidget->topLevelItem(0);
-    searchInTree(startItem, searchQuery);
-}
-
 void MainWindow::setConfigValue(const QString &key, const QString &value) {
     if (noConfigChange) {
         return;
diff --git a/mainwindow.h b/mainwindow.h
index 8699bba..4bd72ba 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -22,7 +22,7 @@ public:
 
 private slots:
     void on_selectProjectDirButton_clicked();
-    void on_reloadButton_clicked();
+//    void on_reloadButton_clicked();
     void on_languageCombo_currentTextChanged(const QString &selectedLanguage);
     void on_reloadTranslationsButton_clicked();
     void on_reloadFilesButton_clicked();
@@ -74,7 +74,6 @@ private:
     void translationRequestFinished(QNetworkReply *reply);
     void countAndShowUntranslated();
     void searchNext();
-    void searchInTree(QTreeWidgetItem *item, const QString &query);
     QVector<TranslationItem> parseTextBlock(const QString &block);
     void setConfigValue(const QString &key, const QString &value);
 };
diff --git a/mainwindow.ui b/mainwindow.ui
index 7f8c4b9..bd00149 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>1260</width>
-    <height>719</height>
+    <width>1266</width>
+    <height>774</height>
    </rect>
   </property>
   <property name="windowTitle">