diff --git a/example/src/ofApp.cpp b/example/src/ofApp.cpp
index 2aa3aa8..d832511 100644
--- a/example/src/ofApp.cpp
+++ b/example/src/ofApp.cpp
@@ -148,8 +148,8 @@ void ofApp::update(){
     float animationSpeed = ofMap(sin(ofGetElapsedTimef() * 0.01), -1, 1, 0.0, 2);
     float threshold = 5.0;
     for(int i = 0; i < fontVariationAxes.size(); i++){
-        Font::FontVariationAxis & axis = fontVariationAxes[i];
-        Font::FontVariationAxisParameters & axisParams = fontVariationAxesParameters[i];
+        ofxGPUFont::Font::FontVariationAxis & axis = fontVariationAxes[i];
+        ofxGPUFont::Font::FontVariationAxisParameters & axisParams = fontVariationAxesParameters[i];
         double newValue = ofMap(sin(ofGetElapsedTimef() * animationSpeed),
                                 -1, 1,
                                 axisParams.minValue, axisParams.maxValue);
diff --git a/example/src/ofApp.h b/example/src/ofApp.h
index 785fab8..e47ce5a 100644
--- a/example/src/ofApp.h
+++ b/example/src/ofApp.h
@@ -2,39 +2,7 @@
 
 #include "ofMain.h"
 #include "ofxGPUFont.h"
-#include "gpufont/font.hpp"
-#include "gpufont/shader_catalog.hpp"
 
-static std::unique_ptr <Font> loadFont(FT_Library & library, const std::string & filename, float worldSize = 1.0f, bool hinting = false){
-    std::string error;
-    FT_Face face = Font::loadFace(library, filename, error);
-    if(error != ""){
-        std::cerr << "[font] failed to load " << filename << ": " << error << std::endl;
-        return std::unique_ptr <Font>{};
-    }
-
-    return std::make_unique <Font>(face, worldSize, hinting);
-}
-
-static void tryUpdateMainFont(FT_Library & library,
-                              const std::string & filename,
-                              const string & mainText,
-                              unique_ptr <Font> & mainFont,
-                              Font::BoundingBox & bb){
-    {
-        auto font = loadFont(library, filename, 0.05f);
-        if(!font){
-            return;
-        }
-
-        font->dilation = 0.1f;
-
-        font->prepareGlyphsForText(mainText);
-
-        mainFont = std::move(font);
-        bb = mainFont->measure(0, 0, mainText);
-    }
-}
 class ofApp : public ofBaseApp {
 
     public:
@@ -71,7 +39,7 @@ class ofApp : public ofBaseApp {
 
         void exit();
 
-        unique_ptr <Font> font;
+        unique_ptr <ofxGPUFont::Font> font;
         FT_Library library;
 
 // Empty VAO used when the vertex shader has no input and only uses gl_VertexID,
@@ -82,7 +50,7 @@ class ofApp : public ofBaseApp {
         //std::shared_ptr <ShaderCatalog::Entry> backgroundShader;
         std::shared_ptr <ShaderCatalog::Entry> fontShader;
 
-        Font::BoundingBox bb;
+        ofxGPUFont::Font::BoundingBox bb;
 
         Transform transform;
 
@@ -152,7 +120,7 @@ class ofApp : public ofBaseApp {
             "data/celines-fonts/Version-3-var.ttf"
         };
 
-        std::vector <Font::FontVariationAxisParameters> fontVariationAxesParameters;
-        std::vector <Font::FontVariationAxis> fontVariationAxes;
+        std::vector <ofxGPUFont::Font::FontVariationAxisParameters> fontVariationAxesParameters;
+        std::vector <ofxGPUFont::Font::FontVariationAxis> fontVariationAxes;
 
 };
diff --git a/example/src/defer.hpp b/src/defer.hpp
similarity index 100%
rename from example/src/defer.hpp
rename to src/defer.hpp
diff --git a/example/src/gpufont/font.hpp b/src/gpufont/font.hpp
similarity index 97%
rename from example/src/gpufont/font.hpp
rename to src/gpufont/font.hpp
index eee6793..00ad13f 100644
--- a/example/src/gpufont/font.hpp
+++ b/src/gpufont/font.hpp
@@ -1,3 +1,4 @@
+#pragma once
 // Note: See "main.cpp" for headers.
 // This file was extracted to improve the organization of the code,
 // but it is still compiled in the "main.cpp" translation unit,
@@ -17,6 +18,8 @@
 #define F16DOT16_TO_DOUBLE(x) (1 / 65536. * double(x))
 #define DOUBLE_TO_F16DOT16(x) FT_Fixed(65536. * x)
 
+namespace ofxGPUFont {
+
 inline int32_t calculateUpperPowerOfTwo(int32_t v){
     v--;
     v |= v >> 1;
@@ -32,7 +35,6 @@ inline bool isPowerOfTwo(int i){
     return (i & (i - 1)) == 0;
 }
 
-
 class Font {
     struct Glyph {
         FT_UInt index;
@@ -318,7 +320,6 @@ class Font {
         }
 
         void prepareGlyphsForText(const std::string & text, bool forceChange = false){
-            // TODO: do not duplicate glyphs
             bool changed = false;
 
             if(forceChange){
@@ -916,3 +917,35 @@ class Font {
         // anti-aliasing. Value is relative to emSize.
         float dilation = 0;
 };
+
+static std::unique_ptr <Font> loadFont(FT_Library & library, const std::string & filename, float worldSize = 1.0f, bool hinting = false){
+    std::string error;
+    FT_Face face = Font::loadFace(library, filename, error);
+    if(error != ""){
+        std::cerr << "[font] failed to load " << filename << ": " << error << std::endl;
+        return std::unique_ptr <Font>{};
+    }
+
+    return std::make_unique <Font>(face, worldSize, hinting);
+}
+
+static void tryUpdateMainFont(FT_Library & library,
+                              const std::string & filename,
+                              const string & mainText,
+                              unique_ptr <Font> & mainFont,
+                              Font::BoundingBox & bb){
+    {
+        auto font = loadFont(library, filename, 0.05f);
+        if(!font){
+            return;
+        }
+
+        font->dilation = 0.1f;
+
+        font->prepareGlyphsForText(mainText);
+
+        mainFont = std::move(font);
+        bb = mainFont->measure(0, 0, mainText);
+    }
+}
+}
diff --git a/example/src/gpufont/glm.hpp b/src/gpufont/glm.hpp
similarity index 100%
rename from example/src/gpufont/glm.hpp
rename to src/gpufont/glm.hpp
diff --git a/example/src/gpufont/maingpufont.hpp b/src/gpufont/maingpufont.hpp
similarity index 100%
rename from example/src/gpufont/maingpufont.hpp
rename to src/gpufont/maingpufont.hpp
diff --git a/example/src/gpufont/shader_catalog.cpp b/src/gpufont/shader_catalog.cpp
similarity index 100%
rename from example/src/gpufont/shader_catalog.cpp
rename to src/gpufont/shader_catalog.cpp
diff --git a/example/src/gpufont/shader_catalog.hpp b/src/gpufont/shader_catalog.hpp
similarity index 100%
rename from example/src/gpufont/shader_catalog.hpp
rename to src/gpufont/shader_catalog.hpp
diff --git a/src/ofxGPUFont.h b/src/ofxGPUFont.h
index 1a42a12..e1b7675 100644
--- a/src/ofxGPUFont.h
+++ b/src/ofxGPUFont.h
@@ -1 +1,4 @@
-#pragma one
+#pragma once
+
+#include "gpufont/font.hpp"
+#include "gpufont/shader_catalog.hpp"