diff --git a/cpp-terminal/options.cpp b/cpp-terminal/options.cpp
index e5702e1f..8b9e29e1 100644
--- a/cpp-terminal/options.cpp
+++ b/cpp-terminal/options.cpp
@@ -32,4 +32,4 @@ void Term::Options::clean()
   m_Options = cleaned;
 }
 
-bool Term::Options::has(const Option& option) { return std::find(m_Options.begin(), m_Options.end(), option) != m_Options.end(); }
+bool Term::Options::has(const Option& option) const noexcept { return std::find(m_Options.begin(), m_Options.end(), option) != m_Options.end(); }
diff --git a/cpp-terminal/options.hpp b/cpp-terminal/options.hpp
index 86e11004..ce9bdf4c 100644
--- a/cpp-terminal/options.hpp
+++ b/cpp-terminal/options.hpp
@@ -40,8 +40,7 @@ class Options
 
   bool operator==(const Options& options);
   bool operator!=(const Options& options);
-
-  bool has(const Option& option);
+  bool has(const Option& option) const noexcept;
 
 private:
   void                      clean();
diff --git a/cpp-terminal/private/terminal_impl.cpp b/cpp-terminal/private/terminal_impl.cpp
index b28ffcbe..e869cf5d 100644
--- a/cpp-terminal/private/terminal_impl.cpp
+++ b/cpp-terminal/private/terminal_impl.cpp
@@ -157,7 +157,7 @@ std::size_t Term::Terminal::unsetFocusEvents()
 #endif
 }
 
-void Term::Terminal::setMode()
+void Term::Terminal::setMode() const
 {
   static bool activated{false};
 #if defined(_WIN32)
diff --git a/cpp-terminal/terminal_impl.cpp b/cpp-terminal/terminal_impl.cpp
index 96179710..d8a71bc7 100644
--- a/cpp-terminal/terminal_impl.cpp
+++ b/cpp-terminal/terminal_impl.cpp
@@ -18,9 +18,7 @@
 #include "cpp-terminal/style.hpp"
 #include "cpp-terminal/terminal.hpp"  //FIXME avoid recursion
 
-Term::Options Term::Terminal::m_options{};  //NOLINT(fuchsia-statically-constructed-objects)
-
-Term::Options Term::Terminal::getOptions() noexcept { return m_options; }
+Term::Options Term::Terminal::getOptions() const noexcept { return m_options; }
 
 Term::Terminal::Terminal() noexcept
 try
@@ -39,8 +37,8 @@ catch(...)
 Term::Terminal::~Terminal() noexcept
 try
 {
-  if(m_options.has(Option::ClearScreen)) { Term::Private::out.write(clear_buffer() + style(Style::Reset) + cursor_move(1, 1) + screen_load()); }
-  if(m_options.has(Option::NoCursor)) { Term::Private::out.write(cursor_on()); }
+  if(getOptions().has(Option::ClearScreen)) { Term::Private::out.write(clear_buffer() + style(Style::Reset) + cursor_move(1, 1) + screen_load()); }
+  if(getOptions().has(Option::NoCursor)) { Term::Private::out.write(cursor_on()); }
   set_unset_utf8();
   store_and_restore();
   unsetFocusEvents();
@@ -51,9 +49,9 @@ catch(...)
   ExceptionHandler(Private::ExceptionDestination::StdErr);
 }
 
-void Term::Terminal::applyOptions()
+void Term::Terminal::applyOptions() const
 {
-  if(m_options.has(Option::ClearScreen)) { Term::Private::out.write(screen_save() + clear_buffer() + style(Style::Reset) + cursor_move(1, 1)); }
-  if(m_options.has(Option::NoCursor)) { Term::Private::out.write(cursor_off()); }
+  if(getOptions().has(Option::ClearScreen)) { Term::Private::out.write(screen_save() + clear_buffer() + style(Style::Reset) + cursor_move(1, 1)); }
+  if(getOptions().has(Option::NoCursor)) { Term::Private::out.write(cursor_off()); }
   setMode();
 }
diff --git a/cpp-terminal/terminal_impl.hpp b/cpp-terminal/terminal_impl.hpp
index 5a1329b1..183bc8e5 100644
--- a/cpp-terminal/terminal_impl.hpp
+++ b/cpp-terminal/terminal_impl.hpp
@@ -22,16 +22,16 @@ class Terminal
 public:
   ~Terminal() noexcept;
   Terminal() noexcept;
-  Terminal(const Terminal&)                                         = delete;
-  Terminal(Terminal&&)                                              = delete;
-  Terminal&                              operator=(Terminal&&)      = delete;
-  Terminal&                              operator=(const Terminal&) = delete;
-  template<typename... Args> static void setOptions(const Args&&... args)
+  Terminal(const Terminal&)                                  = delete;
+  Terminal(Terminal&&)                                       = delete;
+  Terminal&                       operator=(Terminal&&)      = delete;
+  Terminal&                       operator=(const Terminal&) = delete;
+  template<typename... Args> void setOptions(const Args&&... args)
   {
     m_options = {args...};
     applyOptions();
   }
-  static Term::Options getOptions() noexcept;
+  Term::Options getOptions() const noexcept;
 
 private:
   ///
@@ -43,18 +43,18 @@ class Terminal
   ///@brief Set mode raw/cooked.
   ///First call is to save the good state set-up by cpp-terminal.
   ///
-  static void setMode();
+  void setMode() const;
 
-  static void setOptions();
-  static void applyOptions();
+  void setOptions();
+  void applyOptions() const;
 
   static std::size_t setMouseEvents();
   static std::size_t unsetMouseEvents();
   static std::size_t setFocusEvents();
   static std::size_t unsetFocusEvents();
 
-  static void          set_unset_utf8();
-  static Term::Options m_options;
+  static void   set_unset_utf8();
+  Term::Options m_options;
 };
 
 }  // namespace Term