diff --git a/src/.gitignore b/inst/src/.gitignore
similarity index 100%
rename from src/.gitignore
rename to inst/src/.gitignore
diff --git a/inst/src/Makevars b/inst/src/Makevars
new file mode 100644
index 0000000..0c668c3
--- /dev/null
+++ b/inst/src/Makevars
@@ -0,0 +1,7 @@
+PKG_CPPFLAGS = -DNDEBUG -I/opt/homebrew/Cellar/harfbuzz/10.1.0/include/harfbuzz -I/opt/homebrew/Cellar/glib/2.82.4/include/glib-2.0 -I/opt/homebrew/Cellar/glib/2.82.4/lib/glib-2.0/include -I/opt/homebrew/opt/gettext/include -I/opt/homebrew/Cellar/pcre2/10.44/include -I/opt/homebrew/Cellar/graphite2/1.3.14/include -I/opt/homebrew/opt/freetype/include/freetype2 -I/opt/homebrew/opt/libpng/include/libpng16 -I/opt/homebrew/Cellar/fribidi/1.0.16/include/fribidi -DFRIBIDI_LIB_STATIC
+PKG_LIBS = -L/opt/homebrew/Cellar/harfbuzz/10.1.0/lib -lharfbuzz -lm -framework ApplicationServices -L/opt/homebrew/Cellar/glib/2.82.4/lib -lglib-2.0 -L/opt/homebrew/opt/gettext/lib -lintl -liconv -lm -framework Foundation -framework CoreFoundation -framework AppKit -framework Carbon -L/opt/homebrew/Cellar/pcre2/10.44/lib -lpcre2-8 -D_THREAD_SAFE -pthread -L/opt/homebrew/Cellar/graphite2/1.3.14/lib -lgraphite2 -L/opt/homebrew/opt/freetype/lib -lfreetype -lbz2 -L/opt/homebrew/opt/libpng/lib -lpng16 -lz -L/opt/homebrew/Cellar/fribidi/1.0.16/lib -lfribidi
+
+all: clean
+
+clean:
+	rm -f $(SHLIB) $(OBJECTS)
diff --git a/src/Makevars.in b/inst/src/Makevars.in
similarity index 100%
rename from src/Makevars.in
rename to inst/src/Makevars.in
diff --git a/src/Makevars.win b/inst/src/Makevars.win
similarity index 100%
rename from src/Makevars.win
rename to inst/src/Makevars.win
diff --git a/src/cache_lru.h b/inst/src/cache_lru.h
similarity index 100%
rename from src/cache_lru.h
rename to inst/src/cache_lru.h
diff --git a/src/cpp11.cpp b/inst/src/cpp11.cpp
similarity index 100%
rename from src/cpp11.cpp
rename to inst/src/cpp11.cpp
diff --git a/src/face_feature.cpp b/inst/src/face_feature.cpp
similarity index 100%
rename from src/face_feature.cpp
rename to inst/src/face_feature.cpp
diff --git a/src/face_feature.h b/inst/src/face_feature.h
similarity index 100%
rename from src/face_feature.h
rename to inst/src/face_feature.h
diff --git a/src/hb_shaper.cpp b/inst/src/hb_shaper.cpp
similarity index 100%
rename from src/hb_shaper.cpp
rename to inst/src/hb_shaper.cpp
diff --git a/src/hb_shaper.h b/inst/src/hb_shaper.h
similarity index 100%
rename from src/hb_shaper.h
rename to inst/src/hb_shaper.h
diff --git a/src/init.cpp b/inst/src/init.cpp
similarity index 100%
rename from src/init.cpp
rename to inst/src/init.cpp
diff --git a/src/string_bidi.cpp b/inst/src/string_bidi.cpp
similarity index 100%
rename from src/string_bidi.cpp
rename to inst/src/string_bidi.cpp
diff --git a/src/string_bidi.h b/inst/src/string_bidi.h
similarity index 100%
rename from src/string_bidi.h
rename to inst/src/string_bidi.h
diff --git a/src/string_metrics.cpp b/inst/src/string_metrics.cpp
similarity index 100%
rename from src/string_metrics.cpp
rename to inst/src/string_metrics.cpp
diff --git a/src/string_metrics.h b/inst/src/string_metrics.h
similarity index 100%
rename from src/string_metrics.h
rename to inst/src/string_metrics.h
diff --git a/src/string_shape.cpp b/inst/src/string_shape.cpp
similarity index 100%
rename from src/string_shape.cpp
rename to inst/src/string_shape.cpp
diff --git a/src/string_shape.h b/inst/src/string_shape.h
similarity index 100%
rename from src/string_shape.h
rename to inst/src/string_shape.h
diff --git a/src/utils.h b/inst/src/utils.h
similarity index 100%
rename from src/utils.h
rename to inst/src/utils.h