diff --git a/CMakeLists.txt b/CMakeLists.txt
index e18f071..1e34564 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.1)
 project(xdgcfg
-        VERSION 0.2.3
+        VERSION 0.3.0
         LANGUAGES CXX
 )
 
@@ -13,8 +13,9 @@ set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
-set(CMAKE_CXX_FLAGS
-    "${CMAKE_CXX_FLAGS} -Wall -pedantic -Wextra -g -Og -fno-omit-frame-pointer")
+set(CMAKE_CXX_FLAGS_DEBUG
+  "${CMAKE_CXX_FLAGS_DEBUG} -Wall -Wextra -Wpedantic -ftrapv \
+-fsanitize=undefined -g -Og -fno-omit-frame-pointer")
 
 include_directories(${LIBXDG_BASEDIR_INCLUDE_DIRS})
 include_directories(${LIBCONFIG_INCLUDE_DIRS})
@@ -22,21 +23,8 @@ include_directories(${LIBCONFIG_INCLUDE_DIRS})
 link_directories(${LIBXDG_BASEDIR_LIBRARY_DIRS})
 link_directories(${LIBCONFIG_LIBRARY_DIRS})
 
-add_library(xdgcfg SHARED src/xdgcfg.cpp)
-set_target_properties(xdgcfg PROPERTIES
-                      VERSION ${PROJECT_VERSION}
-                      SOVERSION ${xdgcfg_VERSION_MAJOR})
-target_link_libraries(xdgcfg
-                      ${LIBXDG_BASEDIR_LIBRARIES} ${LIBCONFIG_LIBRARIES}
-                      stdc++fs)
-
-add_library(xdgcfg_static STATIC src/xdgcfg.cpp)
-set_target_properties(xdgcfg_static PROPERTIES
-                      OUTPUT_NAME xdgcfg)
-
 add_executable(example src/example.cpp)
-target_link_libraries(example xdgcfg)
+target_link_libraries(example
+  ${LIBXDG_BASEDIR_LIBRARIES} ${LIBCONFIG_LIBRARIES} stdc++fs)
 
-install(TARGETS xdgcfg LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
-install(TARGETS xdgcfg_static ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
 install(FILES src/xdgcfg.hpp DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
diff --git a/README.md b/README.md
index 3d90317..7daeb12 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ necessary.
 
 ### Dependencies
 
-* C++ compiler (Tested: g++ 5/6/7/8)
+* C++ compiler (Tested: g++ 5/8)
 * [cmake](https://cmake.org/)
 * [pkgconfig](https://pkgconfig.freedesktop.org/wiki/)
 * [libconfig++](https://github.com/hyperrealm/libconfig)
@@ -12,9 +12,9 @@ necessary.
 
 ### Usage
 
-You can create dynamic and static libraries:
+Copy `xdgcfg.hpp` into a folder where your project can find it.
 
-```SH
+``` shell
 mkdir build
 cd build
 cmake ..
@@ -22,7 +22,6 @@ make
 make install
 ```
 
-Or just copy `xdgcfg.hpp` and `xdgcfg.cpp` into your project folder.
 
 ### Documentation
 
diff --git a/src/xdgcfg.cpp b/src/xdgcfg.cpp
deleted file mode 100644
index 8307e3d..0000000
--- a/src/xdgcfg.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-/*  Public Domain / CC-0
- *  Author: tastytea <tastytea@tastytea.de>
- */
-
-#include <iostream>
-#include <basedir.h>
-#include "xdgcfg.hpp"
-
-using std::cerr;
-using std::endl;
-
-xdgcfg::xdgcfg(const string &filename, const string &subdir)
-: _cfg()
-, _verbose(false)
-{
-    xdgHandle xdg;
-    xdgInitHandle(&xdg);
-    _filepath = xdgConfigHome(&xdg);
-    xdgWipeHandle(&xdg);
-
-    if (!subdir.empty())
-    {
-        _filepath /= subdir;
-    }
-    if (!fs::exists(_filepath))
-    {
-        fs::create_directories(_filepath);
-    }
-    _filepath /= filename;
-}
-
-uint_fast8_t xdgcfg::read()
-{
-    try
-    {
-        _cfg.readFile(_filepath.c_str());
-    }
-    catch (const libconfig::FileIOException &e)
-    {
-        if (_verbose)
-        {
-            cerr << "I/O error while reading " << _filepath
-                 << " - " << e.what() << endl;
-        }
-        return 1;
-    }
-    catch (const libconfig::ParseException &e)
-    {
-        if (_verbose)
-        {
-            cerr << "Parse error at " << e.getFile() << ":" << e.getLine()
-                 << " - " << e.getError() << endl;
-        }
-        return 2;
-    }
-
-    return 0;
-}
-
-bool xdgcfg::write()
-{
-    try
-    {
-        _cfg.writeFile(_filepath.c_str());
-    }
-    catch (const libconfig::FileIOException &e)
-    {
-        if (_verbose)
-        {
-            cerr << "I/O error while writing " << _filepath
-                 << " - " << e.what() << endl;
-        }
-        return false;
-    }
-
-    return true;
-}
-
-libconfig::Config &xdgcfg::get_cfg()
-{
-    return _cfg;
-}
-
-const fs::path xdgcfg::get_filepath() const
-{
-    return _filepath;
-}
-
-void xdgcfg::set_verbose(bool verbose)
-{
-    _verbose = verbose;
-}
-
-bool xdgcfg::get_verbose() const
-{
-    return _verbose;
-}
diff --git a/src/xdgcfg.hpp b/src/xdgcfg.hpp
index 33760f6..f5938d1 100644
--- a/src/xdgcfg.hpp
+++ b/src/xdgcfg.hpp
@@ -11,8 +11,10 @@
     #include <experimental/filesystem>
 #endif
 #include <string>
+#include <iostream>
 #include <cstdint>
 #include <libconfig.h++>
+#include <basedir.h>
 
 #if __cplusplus >= 201703L
     namespace fs = std::filesystem;
@@ -21,6 +23,8 @@
 #endif
 using std::string;
 using std::uint_fast8_t;
+using std::cerr;
+using std::endl;
 
 class xdgcfg
 {
@@ -36,21 +40,82 @@ public:
      *  @param  filename  The name of the file, including extension
      *  @param  subdir    The subdir (optional)
      */
-    explicit xdgcfg(const string &filename, const string &subdir = "");
+    explicit xdgcfg(const string &filename, const string &subdir = "")
+        : _cfg()
+        , _verbose(false)
+    {
+        xdgHandle xdg;
+        xdgInitHandle(&xdg);
+        _filepath = xdgConfigHome(&xdg);
+        xdgWipeHandle(&xdg);
+
+        if (!subdir.empty())
+        {
+            _filepath /= subdir;
+        }
+        if (!fs::exists(_filepath))
+        {
+            fs::create_directories(_filepath);
+        }
+        _filepath /= filename;
+    }
 
     /*!
      *  @brief  Read the file
      *
      *  @return 0 on success, 1 on I/O error, 2 on parse error.
      */
-    uint_fast8_t read();
+    uint_fast8_t read()
+    {
+        try
+        {
+            _cfg.readFile(_filepath.c_str());
+        }
+        catch (const libconfig::FileIOException &e)
+        {
+            if (_verbose)
+            {
+                cerr << "I/O error while reading " << _filepath
+                     << " - " << e.what() << endl;
+            }
+            return 1;
+        }
+        catch (const libconfig::ParseException &e)
+        {
+            if (_verbose)
+            {
+                cerr << "Parse error at " << e.getFile() << ":" << e.getLine()
+                     << " - " << e.getError() << endl;
+            }
+            return 2;
+        }
+
+        return 0;
+    }
 
     /*!
      *  @brief  Write the file
      *
      *  @return `true` on success
      */
-    bool write();
+    bool write()
+    {
+        try
+        {
+            _cfg.writeFile(_filepath.c_str());
+        }
+        catch (const libconfig::FileIOException &e)
+        {
+            if (_verbose)
+            {
+                cerr << "I/O error while writing " << _filepath
+                     << " - " << e.what() << endl;
+            }
+            return false;
+        }
+
+        return true;
+    }
 
     /*!
      *  @brief  Returns a reference to the config as libconfig::Config
@@ -60,22 +125,34 @@ public:
      *          libconfig::Config &cfg = config.get_cfg();
      *  @endcode
      */
-    libconfig::Config &get_cfg();
+    libconfig::Config &get_cfg()
+    {
+        return _cfg;
+    }
 
     /*!
      *  @brief  Returns the complete filepath
      */
-    const fs::path get_filepath() const;
+    const fs::path get_filepath() const
+    {
+        return _filepath;
+    }
 
     /*!
      *  @brief  Sets verbosity
      */
-    void set_verbose(bool verbose);
+    void set_verbose(bool verbose)
+    {
+        _verbose = verbose;
+    }
 
     /*!
      *  @brief  Returns verbosity
      */
-    bool get_verbose() const;
+    bool get_verbose() const
+    {
+        return _verbose;
+    }
 
 private:
     /*!