diff --git a/scripts/formulas/msdf-atlas-gen.sh b/scripts/formulas/msdf-atlas-gen.sh
index 23594c5..c439ab7 100644
--- a/scripts/formulas/msdf-atlas-gen.sh
+++ b/scripts/formulas/msdf-atlas-gen.sh
@@ -28,40 +28,6 @@
 # $ make
 # $ sudo make install
 #
-# emscripten notes:
-# additionally to the depencies below
-# you may have to build freetype from source
-# and with that also bzip2
-# $
-# $ # tinyxml2:
-# $ cd your/favorite/persistent/build/directory
-# $ git clone https://github.com/leethomason/tinyxml2.git
-# $ cd tinyxml2
-# $ mkdir build && cd build
-# $ emcmake cmake ..
-# $ emmake make
-# $ emmake make install
-# $
-# $ # zlib:
-# $ cd your/favorite/persistent/build/directory
-# $ wget https://www.zlib.net/zlib-1.2.13.tar.gz
-# $ tar -xf zlib-1.2.13.tar.gz
-# $ cd zlib-1.2.13.tar.gz
-# $ mkdir build && cd build
-# $ emcmake cmake ..
-# $ emmake make
-# $ emmake make install
-# $
-# $ # libpng:
-# $ cd your/favorite/persistent/build/directory
-# $ wget https://sourceforge.net/projects/libpng/files/libpng16/1.6.39/libpng-1.6.39.tar.xz/download -O libpng-1.6.39.tar.xz
-# $ tar -xf libpng-1.6.39.tar.xz
-# $ cd libpng-1.6.39
-# $ mkdir build && cd build
-# $ emcmake cmake ..
-# $ emmake make
-# $ emmake make install
-
 
 # array of build types supported by this formula
 # you can delete this to implicitly support *all* types
@@ -134,6 +100,9 @@ function prepare() {
 
     PREV_DIR="$(pwd)"
 
+    # NOTE: currently, these are being build and installed in the emscripten sdk directory
+    # however, it would be better to put the sources in the ofxMsdfgen/libs directory
+    # and build them from there
     if [ "$TYPE" == "emscripten" ] ; then
         echo "preparing $TYPE thirdparty dependencies"
         if decision "download, build and install all thirdparty dependencies" $PROBABLY_YES; then
diff --git a/src/Atlas.h b/src/Atlas.h
index 5f27a87..81b85bb 100644
--- a/src/Atlas.h
+++ b/src/Atlas.h
@@ -27,7 +27,7 @@ struct AtlasSettings {
     float pixelRange = 2.0;
     float miterLimit = 1.0;
     float maxInterpolationStepSize = 42.0;
-    string characters = "charset::ascii";
+    std::string characters = "charset::ascii";
     #ifdef TARGET_EMSCRIPTEN
         int threadCount = 1;
     #else
@@ -35,7 +35,7 @@ struct AtlasSettings {
     #endif
 };
 struct FontVariation {
-    string name;
+    std::string name;
     float value;
     bool operator==(const FontVariation & other) const {
         return (name == other.name
@@ -43,7 +43,7 @@ struct FontVariation {
     }
 };
 struct FontVariationAxis {
-    string name;
+    std::string name;
     float minValue;
     float maxValue;
     float defaultValue;
@@ -84,8 +84,8 @@ class Atlas {
     public:
         Atlas();
         ~Atlas();
-        void setup(string _fontPath);
-        void setup(string _fontPath, AtlasSettings _settings);
+        void setup(std::string _fontPath);
+        void setup(std::string _fontPath, AtlasSettings _settings);
         void addVariations(vector <FontVariation> variations);
         bool generate(bool useCache = true,
                       bool saveToCache = false);
@@ -106,13 +106,13 @@ class Atlas {
         AtlasSettings settings;
         msdfgen::FontHandle * font;
         msdfgen::FreetypeHandle * ft;
-        string getAtlasPathDir();
-        string getAtlasPath();
+        std::string getAtlasPathDir();
+        std::string getAtlasPath();
     private:
-        string fontPath;
+        std::string fontPath;
         ofImage atlasImage;
         vector <GlyphGeometry> glyphGeometries;
-        unordered_map <GlyphVariationKey, int> glyphGeometryMap;
+        std::unordered_map <GlyphVariationKey, int> glyphGeometryMap;
         vector <FontVariationAxis> variationAxesAvailable;
         vector <FontVariation> variationExtremes;
         vector <FontVariation> variationSteps;
diff --git a/src/conversion.cpp b/src/conversion.cpp
index 797e93a..5102ba2 100644
--- a/src/conversion.cpp
+++ b/src/conversion.cpp
@@ -30,11 +30,11 @@ void ofxMsdfgen::toOfImage(const msdfgen::Bitmap <float, 3> bitmap,
     image.update();
 }
 
-void ofxMsdfgen::toOfImage(const msdfgen::Bitmap <byte, 3> bitmap,
+void ofxMsdfgen::toOfImage(const msdfgen::Bitmap <std::byte, 3> bitmap,
                            ofImage & image){
     image.allocate(bitmap.width(), bitmap.height(), OF_IMAGE_COLOR);
     image.getTexture().getTextureData().bFlipTexture = true;
-    memcpy(image.getPixels().getData(), static_cast <const byte *>(bitmap), bitmap.width() * bitmap.height() * 3 * sizeof(byte));
+    memcpy(image.getPixels().getData(), static_cast <const std::byte *>(bitmap), bitmap.width() * bitmap.height() * 3 * sizeof(std::byte));
 
     image.update();
 }
diff --git a/src/conversion.h b/src/conversion.h
index 5a7cd39..7dc6571 100644
--- a/src/conversion.h
+++ b/src/conversion.h
@@ -23,7 +23,7 @@ void toOfImage(const msdfgen::Bitmap <float, 3> bitmap,
                ofFloatImage & image);
 void toOfImage(const msdfgen::Bitmap <float, 3> bitmap,
                ofImage & image);
-void toOfImage(const msdfgen::Bitmap <byte, 3> bitmap,
+void toOfImage(const msdfgen::Bitmap <std::byte, 3> bitmap,
                ofImage & image);
 ofImage toOfImage(const msdfgen::Bitmap <float, 3>);
 }