diff --git a/src/plugins/nim/nimplugin.cpp b/src/plugins/nim/nimplugin.cpp
index 2ffcadfbf27..502e0889dbb 100644
--- a/src/plugins/nim/nimplugin.cpp
+++ b/src/plugins/nim/nimplugin.cpp
@@ -41,10 +41,10 @@ class NimPluginPrivate
 public:
     NimPluginPrivate()
     {
-        Suggest::NimSuggestCache::instance().setExecutablePath(settings.nimSuggestPath.stringValue());
+        Suggest::NimSuggestCache::instance().setExecutablePath(settings.nimSuggestPath());
         QObject::connect(&settings.nimSuggestPath, &StringAspect::changed,
                          &Suggest::NimSuggestCache::instance(), [this] {
-            Suggest::NimSuggestCache::instance().setExecutablePath(settings.nimSuggestPath.stringValue());
+            Suggest::NimSuggestCache::instance().setExecutablePath(settings.nimSuggestPath());
         });
     }
 
diff --git a/src/plugins/nim/suggest/nimsuggest.cpp b/src/plugins/nim/suggest/nimsuggest.cpp
index 1e59233a2d0..260598713ca 100644
--- a/src/plugins/nim/suggest/nimsuggest.cpp
+++ b/src/plugins/nim/suggest/nimsuggest.cpp
@@ -3,8 +3,9 @@
 
 #include "nimsuggest.h"
 
-namespace Nim {
-namespace Suggest {
+using namespace Utils;
+
+namespace Nim::Suggest {
 
 NimSuggest::NimSuggest(QObject *parent)
     : QObject(parent)
@@ -16,12 +17,12 @@ NimSuggest::NimSuggest(QObject *parent)
     connect(&m_client, &NimSuggestClient::connected, this, &NimSuggest::onClientConnected);
 }
 
-QString NimSuggest::projectFile() const
+FilePath NimSuggest::projectFile() const
 {
     return m_projectFile;
 }
 
-void NimSuggest::setProjectFile(const QString &file)
+void NimSuggest::setProjectFile(const Utils::FilePath &file)
 {
     if (m_projectFile == file)
         return;
@@ -32,12 +33,12 @@ void NimSuggest::setProjectFile(const QString &file)
     restart();
 }
 
-QString NimSuggest::executablePath() const
+FilePath NimSuggest::executablePath() const
 {
     return m_executablePath;
 }
 
-void NimSuggest::setExecutablePath(const QString &path)
+void NimSuggest::setExecutablePath(const FilePath &path)
 {
     if (m_executablePath == path)
         return;
@@ -145,5 +146,4 @@ void NimSuggest::onClientDisconnected()
         connectClient();
 }
 
-} // namespace Suggest
-} // namespace Nim
+} // Nim::Suggest
diff --git a/src/plugins/nim/suggest/nimsuggest.h b/src/plugins/nim/suggest/nimsuggest.h
index 403b70abf69..14ea812336d 100644
--- a/src/plugins/nim/suggest/nimsuggest.h
+++ b/src/plugins/nim/suggest/nimsuggest.h
@@ -6,8 +6,10 @@
 #include "client.h"
 #include "server.h"
 
-namespace Nim {
-namespace Suggest {
+#include <utils/filepath.h>
+
+
+namespace Nim::Suggest {
 
 class NimSuggest : public QObject
 {
@@ -16,11 +18,11 @@ class NimSuggest : public QObject
 public:
     NimSuggest(QObject *parent = nullptr);
 
-    QString projectFile() const;
-    void setProjectFile(const QString &file);
+    Utils::FilePath projectFile() const;
+    void setProjectFile(const Utils::FilePath &file);
 
-    QString executablePath() const;
-    void setExecutablePath(const QString &path);
+    Utils::FilePath executablePath() const;
+    void setExecutablePath(const Utils::FilePath &path);
 
     bool isReady() const;
 
@@ -32,8 +34,8 @@ public:
 
 signals:
     void readyChanged(bool ready);
-    void projectFileChanged(const QString &projectFile);
-    void executablePathChanged(const QString &executablePath);
+    void projectFileChanged(const Utils::FilePath &projectFile);
+    void executablePathChanged(const Utils::FilePath &executablePath);
 
 private:
     void restart();
@@ -61,11 +63,10 @@ private:
     bool m_ready = false;
     bool m_clientReady = false;
     bool m_serverReady = false;
-    QString m_projectFile;
-    QString m_executablePath;
+    Utils::FilePath m_projectFile;
+    Utils::FilePath m_executablePath;
     NimSuggestServer m_server;
     NimSuggestClient m_client;
 };
 
-} // namespace Suggest
-} // namespace Nim
+} // Nim::Suggest
diff --git a/src/plugins/nim/suggest/nimsuggestcache.cpp b/src/plugins/nim/suggest/nimsuggestcache.cpp
index 127c55904b3..9fe869cdd55 100644
--- a/src/plugins/nim/suggest/nimsuggestcache.cpp
+++ b/src/plugins/nim/suggest/nimsuggestcache.cpp
@@ -5,12 +5,14 @@
 
 #include "nimconstants.h"
 #include "nimsuggest.h"
+#include "settings/nimsettings.h"
 
 #include <coreplugin/editormanager/editormanager.h>
 #include <coreplugin/editormanager/ieditor.h>
 
-namespace Nim {
-namespace Suggest {
+using namespace Utils;
+
+namespace Nim::Suggest {
 
 NimSuggestCache &NimSuggestCache::instance()
 {
@@ -20,12 +22,12 @@ NimSuggestCache &NimSuggestCache::instance()
 
 NimSuggestCache::~NimSuggestCache() = default;
 
-NimSuggest *NimSuggestCache::get(const Utils::FilePath &filename)
+NimSuggest *NimSuggestCache::get(const FilePath &filename)
 {
     auto it = m_nimSuggestInstances.find(filename);
     if (it == m_nimSuggestInstances.end()) {
         auto instance = std::make_unique<Suggest::NimSuggest>(this);
-        instance->setProjectFile(filename.toString());
+        instance->setProjectFile(filename);
         instance->setExecutablePath(m_executablePath);
         it = m_nimSuggestInstances.emplace(filename, std::move(instance)).first;
     }
@@ -41,12 +43,12 @@ NimSuggestCache::NimSuggestCache()
             this, &NimSuggestCache::onEditorClosed);
 }
 
-QString NimSuggestCache::executablePath() const
+FilePath NimSuggestCache::executablePath() const
 {
     return m_executablePath;
 }
 
-void NimSuggestCache::setExecutablePath(const QString &path)
+void NimSuggestCache::setExecutablePath(const FilePath &path)
 {
     if (m_executablePath == path)
         return;
@@ -72,5 +74,4 @@ void Nim::Suggest::NimSuggestCache::onEditorClosed(Core::IEditor *editor)
         m_nimSuggestInstances.erase(it);
 }
 
-}
-}
+} // Nim::Suggest
diff --git a/src/plugins/nim/suggest/nimsuggestcache.h b/src/plugins/nim/suggest/nimsuggestcache.h
index df06c5b33fd..757118ba47b 100644
--- a/src/plugins/nim/suggest/nimsuggestcache.h
+++ b/src/plugins/nim/suggest/nimsuggestcache.h
@@ -11,8 +11,7 @@
 
 namespace Core { class IEditor; }
 
-namespace Nim {
-namespace Suggest {
+namespace Nim::Suggest {
 
 class NimSuggest;
 
@@ -25,8 +24,8 @@ public:
 
     NimSuggest *get(const Utils::FilePath &filename);
 
-    QString executablePath() const;
-    void setExecutablePath(const QString &path);
+    Utils::FilePath executablePath() const;
+    void setExecutablePath(const Utils::FilePath &path);
 
 private:
     NimSuggestCache();
@@ -37,8 +36,7 @@ private:
 
     std::unordered_map<Utils::FilePath, std::unique_ptr<Suggest::NimSuggest>> m_nimSuggestInstances;
 
-    QString m_executablePath;
+    Utils::FilePath m_executablePath;
 };
 
-} // namespace Suggest
-} // namespace Nim
+} // Nim::Suggest
diff --git a/src/plugins/nim/suggest/server.cpp b/src/plugins/nim/suggest/server.cpp
index 7573505f727..d3f8d086ceb 100644
--- a/src/plugins/nim/suggest/server.cpp
+++ b/src/plugins/nim/suggest/server.cpp
@@ -5,8 +5,7 @@
 
 using namespace Utils;
 
-namespace Nim {
-namespace Suggest {
+namespace Nim::Suggest {
 
 NimSuggestServer::NimSuggestServer(QObject *parent) : QObject(parent)
 {
@@ -15,20 +14,14 @@ NimSuggestServer::NimSuggestServer(QObject *parent) : QObject(parent)
             &NimSuggestServer::onStandardOutputAvailable);
 }
 
-QString NimSuggestServer::executablePath() const
+bool NimSuggestServer::start(const FilePath &executablePath, const FilePath &projectFilePath)
 {
-    return m_executablePath;
-}
-
-bool NimSuggestServer::start(const QString &executablePath,
-                             const QString &projectFilePath)
-{
-    if (!QFile::exists(executablePath)) {
+    if (!executablePath.exists()) {
         qWarning() << "NimSuggest executable path" << executablePath << "does not exist";
         return false;
     }
 
-    if (!QFile::exists(projectFilePath)) {
+    if (!projectFilePath.exists()) {
         qWarning() << "Project file" << projectFilePath << "doesn't exist";
         return false;
     }
@@ -36,7 +29,7 @@ bool NimSuggestServer::start(const QString &executablePath,
     stop();
     m_executablePath = executablePath;
     m_projectFilePath = projectFilePath;
-    m_process.setCommand({FilePath::fromString(executablePath), {"--epc", m_projectFilePath}});
+    m_process.setCommand({executablePath, {"--epc", m_projectFilePath.path()}});
     m_process.start();
     return true;
 }
@@ -52,11 +45,6 @@ quint16 NimSuggestServer::port() const
     return m_port;
 }
 
-QString NimSuggestServer::projectFilePath() const
-{
-    return m_projectFilePath;
-}
-
 void NimSuggestServer::onStandardOutputAvailable()
 {
     if (!m_portAvailable) {
@@ -81,5 +69,4 @@ void NimSuggestServer::clearState()
     m_port = 0;
 }
 
-} // namespace Suggest
-} // namespace Nim
+} // namespace Nim::Suggest
diff --git a/src/plugins/nim/suggest/server.h b/src/plugins/nim/suggest/server.h
index 9eb2bac141d..73e28096e29 100644
--- a/src/plugins/nim/suggest/server.h
+++ b/src/plugins/nim/suggest/server.h
@@ -3,14 +3,9 @@
 
 #pragma once
 
-#include <QDebug>
-#include <QFile>
-#include <QObject>
-
 #include <utils/process.h>
 
-namespace Nim {
-namespace Suggest {
+namespace Nim::Suggest {
 
 class NimSuggestServer : public QObject
 {
@@ -19,12 +14,10 @@ class NimSuggestServer : public QObject
 public:
     NimSuggestServer(QObject *parent = nullptr);
 
-    bool start(const QString &executablePath, const QString &projectFilePath);
+    bool start(const Utils::FilePath &executablePath, const Utils::FilePath &projectFilePath);
     void stop();
 
     quint16 port() const;
-    QString executablePath() const;
-    QString projectFilePath() const;
 
 signals:
     void started();
@@ -38,9 +31,8 @@ private:
     bool m_portAvailable = false;
     Utils::Process m_process;
     quint16 m_port = 0;
-    QString m_projectFilePath;
-    QString m_executablePath;
+    Utils::FilePath m_projectFilePath;
+    Utils::FilePath m_executablePath;
 };
 
-} // namespace Suggest
-} // namespace Nim
+} // Nim::Suggest