diff --git a/src/configuration.hpp b/src/configuration.hpp
new file mode 100644
index 0000000..b3b2cdc
--- /dev/null
+++ b/src/configuration.hpp
@@ -0,0 +1,45 @@
+#pragma once
+
+#include <nlohmann/json.hpp>
+
+#include <list>
+#include <set>
+
+namespace configuration
+{
+constexpr const char* globalSchema = "global.json";
+constexpr const char* hostConfigurationDirectory = SYSCONF_DIR "configurations";
+constexpr const char* configurationDirectory = PACKAGE_DIR "configurations";
+constexpr const char* currentConfiguration = "/var/configuration/system.json";
+constexpr const char* schemaDirectory = PACKAGE_DIR "configurations/schemas";
+
+bool writeJsonFiles(const nlohmann::json& systemConfiguration);
+
+bool loadConfigurations(std::list<nlohmann::json>& configurations);
+
+template <typename JsonType>
+bool setJsonFromPointer(const std::string& ptrStr, const JsonType& value,
+                        nlohmann::json& systemConfiguration)
+{
+    try
+    {
+        nlohmann::json::json_pointer ptr(ptrStr);
+        nlohmann::json& ref = systemConfiguration[ptr];
+        ref = value;
+        return true;
+    }
+    catch (const std::out_of_range&)
+    {
+        return false;
+    }
+}
+
+void deriveNewConfiguration(const nlohmann::json& oldConfiguration,
+                            nlohmann::json& newConfiguration);
+
+bool validateJson(const nlohmann::json& schemaFile,
+                  const nlohmann::json& input);
+
+std::set<std::string> getProbeInterfaces();
+
+} // namespace configuration