diff --git a/cpp/examples/CMakeLists.txt b/cpp/examples/CMakeLists.txt
index ff0627c..88a6c09 100644
--- a/cpp/examples/CMakeLists.txt
+++ b/cpp/examples/CMakeLists.txt
@@ -11,6 +11,7 @@ function ( add_test class_name method_name )
   set(target "${class_name}_${method_name}")
   add_executable(${target} ${source})
   # target_include_directories(${target} PRIVATE ${Boost_INCLUDE_DIRS})
+  target_compile_options(${target} PRIVATE -Wall -Wextra -pedantic)
   include_directories(${CMAKE_CURRENT_SOURCE_DIR} include/)
   set_target_properties(${target} PROPERTIES OUTPUT_NAME "${method_name}" )
   target_include_directories(${target} PRIVATE
diff --git a/cpp/examples/ExampleBag/insert.cpp b/cpp/examples/ExampleBag/insert.cpp
index b84cbd8..afbb901 100644
--- a/cpp/examples/ExampleBag/insert.cpp
+++ b/cpp/examples/ExampleBag/insert.cpp
@@ -6,7 +6,6 @@
 #include "clippy/clippy.hpp"
 #include <boost/json.hpp>
 
-static const std::string class_name = "ExampleBag";
 static const std::string method_name = "insert";
 static const std::string state_name = "INTERNAL";
 
diff --git a/cpp/examples/ExampleBag/remove.cpp b/cpp/examples/ExampleBag/remove.cpp
index 450f53e..d4b5dcd 100644
--- a/cpp/examples/ExampleBag/remove.cpp
+++ b/cpp/examples/ExampleBag/remove.cpp
@@ -6,10 +6,8 @@
 #include "clippy/clippy.hpp"
 #include <algorithm>
 #include <boost/json.hpp>
-#include <iostream>
-#include <list>
 
-namespace boostjsn = boost::json;
+#include <list>
 
 static const std::string method_name = "remove";
 static const std::string state_name = "INTERNAL";
diff --git a/cpp/examples/ExampleBag/remove_if.cpp b/cpp/examples/ExampleBag/remove_if.cpp
index c2ed32b..702900a 100644
--- a/cpp/examples/ExampleBag/remove_if.cpp
+++ b/cpp/examples/ExampleBag/remove_if.cpp
@@ -11,7 +11,6 @@
 
 namespace boostjsn = boost::json;
 
-static const std::string class_name = "nClippyExample";
 static const std::string method_name = "remove_if";
 static const std::string state_name = "INTERNAL";
 
diff --git a/cpp/examples/ExampleBag/size.cpp b/cpp/examples/ExampleBag/size.cpp
index 2ab35ab..36e68e8 100644
--- a/cpp/examples/ExampleBag/size.cpp
+++ b/cpp/examples/ExampleBag/size.cpp
@@ -6,9 +6,6 @@
 #include "clippy/clippy.hpp"
 #include <boost/json.hpp>
 #include <cassert>
-#include <iostream>
-
-namespace boostjsn = boost::json;
 
 static const std::string method_name = "size";
 static const std::string state_name = "INTERNAL";
diff --git a/cpp/examples/ExampleGraph/__init__.cpp b/cpp/examples/ExampleGraph/__init__.cpp
index 5b8f8c0..adab98d 100644
--- a/cpp/examples/ExampleGraph/__init__.cpp
+++ b/cpp/examples/ExampleGraph/__init__.cpp
@@ -7,8 +7,6 @@
 #include "examplegraph.hpp"
 #include <boost/json.hpp>
 
-namespace boostjsn = boost::json;
-
 static const std::string method_name = "__init__";
 static const std::string state_name = "INTERNAL";
 static const std::string sel_state_name = "selectors";
diff --git a/cpp/examples/ExampleGraph/__str__.cpp b/cpp/examples/ExampleGraph/__str__.cpp
index 7a6a895..d18678f 100644
--- a/cpp/examples/ExampleGraph/__str__.cpp
+++ b/cpp/examples/ExampleGraph/__str__.cpp
@@ -8,8 +8,6 @@
 #include <boost/json.hpp>
 #include <iostream>
 
-namespace boostjsn = boost::json;
-
 static const std::string method_name = "__str__";
 static const std::string state_name = "INTERNAL";
 
diff --git a/cpp/examples/ExampleGraph/add.cpp b/cpp/examples/ExampleGraph/add.cpp
index 481b290..3735f36 100644
--- a/cpp/examples/ExampleGraph/add.cpp
+++ b/cpp/examples/ExampleGraph/add.cpp
@@ -11,7 +11,6 @@
 namespace boostjsn = boost::json;
 
 static const std::string method_name = "add";
-static const std::string state_name = "INTERNAL";
 
 int main(int argc, char **argv) {
   clippy::clippy clip{method_name, "Adds a subselector"};
diff --git a/cpp/examples/ExampleGraph/add_edge.cpp b/cpp/examples/ExampleGraph/add_edge.cpp
index 18a11b2..1faebb9 100644
--- a/cpp/examples/ExampleGraph/add_edge.cpp
+++ b/cpp/examples/ExampleGraph/add_edge.cpp
@@ -7,8 +7,6 @@
 #include "examplegraph.hpp"
 #include <boost/json.hpp>
 
-namespace boostjsn = boost::json;
-
 static const std::string method_name = "add_edge";
 static const std::string state_name = "INTERNAL";
 
diff --git a/cpp/examples/ExampleGraph/add_node.cpp b/cpp/examples/ExampleGraph/add_node.cpp
index b03638d..95361f7 100644
--- a/cpp/examples/ExampleGraph/add_node.cpp
+++ b/cpp/examples/ExampleGraph/add_node.cpp
@@ -7,8 +7,6 @@
 #include "examplegraph.hpp"
 #include <boost/json.hpp>
 
-namespace boostjsn = boost::json;
-
 static const std::string method_name = "add_node";
 static const std::string state_name = "INTERNAL";
 
diff --git a/cpp/examples/ExampleGraph/add_series.cpp b/cpp/examples/ExampleGraph/add_series.cpp
index 9c58ff0..58d5ade 100644
--- a/cpp/examples/ExampleGraph/add_series.cpp
+++ b/cpp/examples/ExampleGraph/add_series.cpp
@@ -11,8 +11,6 @@
 #include "clippy/selector.hpp"
 #include "examplegraph.hpp"
 
-namespace boostjsn = boost::json;
-
 static const std::string method_name = "add_series";
 static const std::string graph_state_name = "INTERNAL";
 static const std::string sel_state_name = "selectors";
diff --git a/cpp/examples/ExampleGraph/assign.cpp b/cpp/examples/ExampleGraph/assign.cpp
index 9e958d4..1babf9d 100644
--- a/cpp/examples/ExampleGraph/assign.cpp
+++ b/cpp/examples/ExampleGraph/assign.cpp
@@ -106,7 +106,8 @@ int main(int argc, char **argv) {
 
   boost::json::object submission_data;
 
-  std::cerr << "val = " << val << ", val.kind() = " << val.kind() << std::endl;
+  // std::cerr << "val = " << val << ", val.kind() = " << val.kind() <<
+  // std::endl;
   if (is_node_sel) {
     if (the_graph.has_node_series(subsel)) {
       std::cerr << "Selector already populated" << std::endl;
diff --git a/cpp/examples/ExampleGraph/connected_components.cpp b/cpp/examples/ExampleGraph/connected_components.cpp
index cb8c6f9..ae586d3 100644
--- a/cpp/examples/ExampleGraph/connected_components.cpp
+++ b/cpp/examples/ExampleGraph/connected_components.cpp
@@ -91,10 +91,10 @@ int main(int argc, char **argv) {
   std::vector<int64_t> components(the_graph.nv());
   std::iota(components.begin(), components.end(), 0);
 
-  for (int64_t i = 0; i < the_graph.nv(); ++i) {
+  for (size_t i = 0; i < the_graph.nv(); ++i) {
     if (!visited[i]) {
       std::queue<int64_t> q;
-      q.push(i);
+      q.push(int64_t(i));
       while (!q.empty()) {
         int64_t v = q.front();
         q.pop();
diff --git a/cpp/examples/ExampleGraph/copy_series.cpp b/cpp/examples/ExampleGraph/copy_series.cpp
index 922760b..69bcbef 100644
--- a/cpp/examples/ExampleGraph/copy_series.cpp
+++ b/cpp/examples/ExampleGraph/copy_series.cpp
@@ -6,14 +6,11 @@
 #include <boost/json.hpp>
 #include <cassert>
 #include <iostream>
-#include <variant>
 
 #include "clippy/clippy.hpp"
 #include "clippy/selector.hpp"
 #include "examplegraph.hpp"
 
-namespace boostjsn = boost::json;
-
 static const std::string method_name = "copy_series";
 static const std::string graph_state_name = "INTERNAL";
 static const std::string sel_state_name = "selectors";
diff --git a/cpp/examples/ExampleGraph/count.cpp b/cpp/examples/ExampleGraph/count.cpp
index e5ee5db..6d33b16 100644
--- a/cpp/examples/ExampleGraph/count.cpp
+++ b/cpp/examples/ExampleGraph/count.cpp
@@ -8,14 +8,12 @@
 #include <clippy/clippy.hpp>
 #include <iostream>
 #include <jsonlogic/src.hpp>
-#include <variant>
 
 #include "clippy/selector.hpp"
 #include "examplegraph.hpp"
 
 static const std::string method_name = "count";
 static const std::string state_name = "INTERNAL";
-static const std::string sel_state_name = "selectors";
 
 int main(int argc, char **argv) {
   clippy::clippy clip{method_name,
diff --git a/cpp/examples/ExampleGraph/mvmap.hpp b/cpp/examples/ExampleGraph/mvmap.hpp
index 2643888..185781a 100644
--- a/cpp/examples/ExampleGraph/mvmap.hpp
+++ b/cpp/examples/ExampleGraph/mvmap.hpp
@@ -1,13 +1,11 @@
 #pragma once
 #include <boost/json.hpp>
-// #include <boost/json/conversion.hpp>
 #include <boost/json/src.hpp>
 #include <cstdint>
 #include <iostream>
 #include <map>
 #include <optional>
 #include <ranges>
-#include <set>
 #include <string>
 #include <utility>
 #include <variant>
@@ -53,13 +51,13 @@ class locator {
     }
   }
 };
-void tag_invoke(boost::json::value_from_tag /*unused*/, boost::json::value &v,
-                locator l) {
+inline void tag_invoke(boost::json::value_from_tag /*unused*/,
+                       boost::json::value &v, locator l) {
   v = l.loc;
 }
 
-locator tag_invoke(boost::json::value_to_tag<locator> /*unused*/,
-                   const boost::json::value &v) {
+inline locator tag_invoke(boost::json::value_to_tag<locator> /*unused*/,
+                          const boost::json::value &v) {
   return boost::json::value_to<index>(v);
 }
 template <typename K, typename... Vs>
@@ -174,14 +172,14 @@ class mvmap {
       for (auto el : series_r) {
         f(itk_r[el.first], locator(el.first), el.second);
       }
-    };
+    }
 
     template <typename F>
     void for_all(F f) const {
       for (auto el : series_r) {
         f(itk_r[el.first], locator(el.first), el.second);
       }
-    };
+    }
 
     // F takes (K key, locator, V value)
     template <typename F>
@@ -196,7 +194,7 @@ class mvmap {
       for (auto ltd : indices_to_delete) {
         erase(locator(ltd));
       }
-    };
+    }
 
     void erase(const locator &l) {
       auto i = l.loc;
diff --git a/cpp/include/clippy/clippy-object.hpp b/cpp/include/clippy/clippy-object.hpp
index d000371..e180e0c 100644
--- a/cpp/include/clippy/clippy-object.hpp
+++ b/cpp/include/clippy/clippy-object.hpp
@@ -8,39 +8,33 @@
 #include <boost/json.hpp>
 
 namespace clippy {
-  class object;
-  class array;
-  
-  struct array {    
-      using json_type = ::boost::json::array;
-    
-      array()                        = default;
-      ~array()                       = default;
-      array(const array&)            = default;
-      array(array&&)                 = default;
-      array& operator=(const array&) = default;
-      array& operator=(array&&)      = default;
-      
-      template <class JsonType>
-      void append_json(JsonType obj)
-      {
-        data.emplace_back(std::move(obj).json());
-      }
 
-      template <class T>
-      void append_val(T obj)
-      {
-        data.emplace_back(std::move(obj));
-      }
-      
-            json_type&  json() &       { return data; }
-      const json_type&  json() const & { return data; }
-            json_type&& json() &&      { return std::move(data); }
-                
-    private:
-      json_type data;
-  };
-    
+struct array {
+  using json_type = ::boost::json::array;
+
+  array() = default;
+  ~array() = default;
+  array(const array &) = default;
+  array(array &&) = default;
+  array &operator=(const array &) = default;
+  array &operator=(array &&) = default;
+
+  template <class JsonType> void append_json(JsonType obj) {
+    data.emplace_back(std::move(obj).json());
+  }
+
+  template <class T> void append_val(T obj) {
+    data.emplace_back(std::move(obj));
+  }
+
+  json_type &json() & { return data; }
+  const json_type &json() const & { return data; }
+  json_type &&json() && { return std::move(data); }
+
+private:
+  json_type data;
+};
+
   struct object {
       using json_type = ::boost::json::object;
 
@@ -74,5 +68,4 @@ namespace clippy {
     private:
       json_type data;
   };
-}
-
+  } // namespace clippy
diff --git a/cpp/include/clippy/clippy.hpp b/cpp/include/clippy/clippy.hpp
index 60322d3..6e8cb78 100644
--- a/cpp/include/clippy/clippy.hpp
+++ b/cpp/include/clippy/clippy.hpp
@@ -10,7 +10,6 @@
 #include <functional>
 #include <iostream>
 #include <map>
-#include <set>
 #include <sstream>
 #include <string>
 #include <utility>
@@ -487,7 +486,7 @@ class clippy {
   boost::json::object m_json_overwrite_args;
   bool m_returns_self = false;
 
-  boost::json::object *m_json_input_state = nullptr;
+  //  boost::json::object *m_json_input_state = nullptr;
   size_t m_next_position = 0;
 
   std::map<std::string, std::function<void(const boost::json::value &)>>
@@ -504,8 +503,8 @@ class clippy {
 }  // namespace clippy
 
 namespace boost::json {
-void tag_invoke(boost::json::value_from_tag, boost::json::value &jv,
-                const std::vector<std::pair<int, int>> &value) {
+inline void tag_invoke(boost::json::value_from_tag, boost::json::value &jv,
+                       const std::vector<std::pair<int, int>> &value) {
   auto &outer_array = jv.emplace_array();
   outer_array.resize(value.size());
 
@@ -517,9 +516,9 @@ void tag_invoke(boost::json::value_from_tag, boost::json::value &jv,
   }
 }
 
-std::vector<std::pair<int, int>> tag_invoke(
-    boost::json::value_to_tag<std::vector<std::pair<int, int>>>,
-    const boost::json::value &jv) {
+inline std::vector<std::pair<int, int>>
+tag_invoke(boost::json::value_to_tag<std::vector<std::pair<int, int>>>,
+           const boost::json::value &jv) {
   std::vector<std::pair<int, int>> value;
 
   auto &outer_array = jv.get_array();
@@ -532,8 +531,9 @@ std::vector<std::pair<int, int>> tag_invoke(
   return value;
 }
 
-void tag_invoke(boost::json::value_from_tag, boost::json::value &jv,
-                const std::vector<std::pair<std::string, std::string>> &value) {
+inline void
+tag_invoke(boost::json::value_from_tag, boost::json::value &jv,
+           const std::vector<std::pair<std::string, std::string>> &value) {
   auto &outer_array = jv.emplace_array();
   outer_array.resize(value.size());
 
@@ -545,7 +545,7 @@ void tag_invoke(boost::json::value_from_tag, boost::json::value &jv,
   }
 }
 
-std::vector<std::pair<std::string, std::string>> tag_invoke(
+inline std::vector<std::pair<std::string, std::string>> tag_invoke(
     boost::json::value_to_tag<std::vector<std::pair<std::string, std::string>>>,
     const boost::json::value &jv) {
   std::vector<std::pair<std::string, std::string>> value;
diff --git a/cpp/include/clippy/selector.hpp b/cpp/include/clippy/selector.hpp
index af198ab..d475bb9 100644
--- a/cpp/include/clippy/selector.hpp
+++ b/cpp/include/clippy/selector.hpp
@@ -1,7 +1,6 @@
 #pragma once
-#include <deque>
+
 #include <iostream>
-#include <ranges>
 
 #include "boost/json.hpp"
 
@@ -49,22 +48,23 @@ class selector {
   }
 };
 
-std::ostream &operator<<(std::ostream &os, const selector &sel) {
+inline std::ostream &operator<<(std::ostream &os, const selector &sel) {
   os << sel.sel_str;
   return os;
 }
 
-selector tag_invoke(boost::json::value_to_tag<selector> /*unused*/,
-                    const boost::json::value &v) {
+inline selector tag_invoke(boost::json::value_to_tag<selector> /*unused*/,
+                           const boost::json::value &v) {
   return v.as_object();
 }
 
-void tag_invoke(boost::json::value_from_tag /*unused*/, boost::json::value &v,
-                const selector &sel) {
-  std::cerr << "This should not be called." << std::endl;
-  // std::map<std::string, std::string> o {};
-  // o["expression_type"] = "jsonlogic";
-  // o["rule"] = {{"var", sel.sel_str}};
-  // v =  {"expression_type": "jsonlogic", "rule": {"var":
-  // "node.degree"}}}sel.sel_str;
-}
\ No newline at end of file
+// void tag_invoke([[maybe_unused]] boost::json::value_from_tag /*unused*/,
+//                 [[maybe_unused]] boost::json::value &v,
+//                 [[maybe_unused]] const selector &sel /*unused*/) {
+//   std::cerr << "This should not be called." << std::endl;
+// std::map<std::string, std::string> o {};
+// o["expression_type"] = "jsonlogic";
+// o["rule"] = {{"var", sel.sel_str}};
+// v =  {"expression_type": "jsonlogic", "rule": {"var":
+// "node.degree"}}}sel.sel_str;
+//}
\ No newline at end of file