diff --git a/Makefile b/svg-flatten/Makefile
similarity index 58%
rename from Makefile
rename to svg-flatten/Makefile
index 541af04..00a17dd 100644
--- a/Makefile
+++ b/svg-flatten/Makefile
@@ -4,6 +4,7 @@ LD := ld
 PKG_CONFIG ?= pkg-config
 
 BUILDDIR ?= build
+UPSTREAM_DIR ?= ../upstream
 
 SOURCES := src/svg_color.cpp \
 	src/svg_doc.cpp \
@@ -20,15 +21,16 @@ SOURCES := src/svg_color.cpp \
 	src/out_flattener.cpp \
 	src/out_dilater.cpp \
 	src/lambda_sink.cpp \
+	$(UPSTREAM_DIR)/cpp-base64/base64.cpp
 
-CLIPPER_SOURCES ?= upstream/clipper-6.4.2/cpp/clipper.cpp upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.cpp
-CLIPPER_INCLUDES 	?= -Iupstream/clipper-6.4.2/cpp -Iupstream/clipper-6.4.2/cpp/cpp_cairo/
-VORONOI_INCLUDES 	?= -Iupstream/voronoi/src
-POISSON_INCLUDES 	?= -Iupstream/poisson-disk-sampling/thinks/poisson_disk_sampling/
-BASE64_INCLUDES 	?= -Iupstream/cpp-base64
-ARGAGG_INCLUDES 	?= -Iupstream/argagg/include/argagg
-CAVC_INCLUDES 		?= -Iupstream/CavalierContours/include/cavc/
-SUBPROCESS_INCLUDES	?= -Iupstream/subprocess.h
+CLIPPER_SOURCES ?= $(UPSTREAM_DIR)/clipper-6.4.2/cpp/clipper.cpp $(UPSTREAM_DIR)/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.cpp
+CLIPPER_INCLUDES 	?= -I$(UPSTREAM_DIR)/clipper-6.4.2/cpp -I$(UPSTREAM_DIR)/clipper-6.4.2/cpp/cpp_cairo/
+VORONOI_INCLUDES 	?= -I$(UPSTREAM_DIR)/voronoi/src
+POISSON_INCLUDES 	?= -I$(UPSTREAM_DIR)/poisson-disk-sampling/thinks/poisson_disk_sampling/
+BASE64_INCLUDES 	?= -I$(UPSTREAM_DIR)/cpp-base64
+ARGAGG_INCLUDES 	?= -I$(UPSTREAM_DIR)/argagg/include/argagg
+CAVC_INCLUDES 		?= -I$(UPSTREAM_DIR)/CavalierContours/include/cavc/
+SUBPROCESS_INCLUDES	?= -I$(UPSTREAM_DIR)/subprocess.h
 
 SOURCES += $(CLIPPER_SOURCES)
 INCLUDES := -Iinclude -Isrc $(CLIPPER_INCLUDES) $(VORONOI_INCLUDES) $(POISSON_INCLUDES) $(BASE64_INCLUDES) $(ARGAGG_INCLUDES) $(CAVC_INCLUDES) $(SUBPROCESS_INCLUDES)
@@ -39,18 +41,15 @@ CXXFLAGS += $(shell $(PKG_CONFIG) --cflags pangocairo pugixml opencv4)
 LDFLAGS := -lm -lc -lstdc++
 LDFLAGS += $(shell $(PKG_CONFIG) --libs pangocairo pugixml opencv4)
 
-TARGET := svg-render
+TARGET := svg-flatten
 
 all: $(BUILDDIR)/$(TARGET)
 
-test.gbr test.svg &: render
-	./render test.svg > test.gbr
-
 $(BUILDDIR)/%.o: %.cpp
 	@mkdir -p $(dir $@) 
 	$(CXX) -c $(CXXFLAGS) $(CXXFLAGS) $(INCLUDES) -o $@ $^
 
-$(BUILDDIR)/$(TARGET): $(SOURCES:%.cpp=$(BUILDDIR)/%.o) $(BUILDDIR)/upstream/cpp-base64/base64.o
+$(BUILDDIR)/$(TARGET): $(SOURCES:%.cpp=$(BUILDDIR)/%.o)
 	@mkdir -p $(dir $@) 
 	$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $^
 	
diff --git a/include/gerbolyze.hpp b/svg-flatten/include/gerbolyze.hpp
similarity index 100%
rename from include/gerbolyze.hpp
rename to svg-flatten/include/gerbolyze.hpp
diff --git a/src/lambda_sink.cpp b/svg-flatten/src/lambda_sink.cpp
similarity index 100%
rename from src/lambda_sink.cpp
rename to svg-flatten/src/lambda_sink.cpp
diff --git a/src/main.cpp b/svg-flatten/src/main.cpp
similarity index 100%
rename from src/main.cpp
rename to svg-flatten/src/main.cpp
diff --git a/src/out_dilater.cpp b/svg-flatten/src/out_dilater.cpp
similarity index 100%
rename from src/out_dilater.cpp
rename to svg-flatten/src/out_dilater.cpp
diff --git a/src/out_flattener.cpp b/svg-flatten/src/out_flattener.cpp
similarity index 100%
rename from src/out_flattener.cpp
rename to svg-flatten/src/out_flattener.cpp
diff --git a/src/out_gerber.cpp b/svg-flatten/src/out_gerber.cpp
similarity index 100%
rename from src/out_gerber.cpp
rename to svg-flatten/src/out_gerber.cpp
diff --git a/src/out_sexp.cpp b/svg-flatten/src/out_sexp.cpp
similarity index 100%
rename from src/out_sexp.cpp
rename to svg-flatten/src/out_sexp.cpp
diff --git a/src/out_svg.cpp b/svg-flatten/src/out_svg.cpp
similarity index 100%
rename from src/out_svg.cpp
rename to svg-flatten/src/out_svg.cpp
diff --git a/src/svg_color.cpp b/svg-flatten/src/svg_color.cpp
similarity index 100%
rename from src/svg_color.cpp
rename to svg-flatten/src/svg_color.cpp
diff --git a/src/svg_color.h b/svg-flatten/src/svg_color.h
similarity index 100%
rename from src/svg_color.h
rename to svg-flatten/src/svg_color.h
diff --git a/src/svg_doc.cpp b/svg-flatten/src/svg_doc.cpp
similarity index 100%
rename from src/svg_doc.cpp
rename to svg-flatten/src/svg_doc.cpp
diff --git a/src/svg_geom.cpp b/svg-flatten/src/svg_geom.cpp
similarity index 100%
rename from src/svg_geom.cpp
rename to svg-flatten/src/svg_geom.cpp
diff --git a/src/svg_geom.h b/svg-flatten/src/svg_geom.h
similarity index 100%
rename from src/svg_geom.h
rename to svg-flatten/src/svg_geom.h
diff --git a/src/svg_import_defs.h b/svg-flatten/src/svg_import_defs.h
similarity index 100%
rename from src/svg_import_defs.h
rename to svg-flatten/src/svg_import_defs.h
diff --git a/src/svg_import_util.cpp b/svg-flatten/src/svg_import_util.cpp
similarity index 100%
rename from src/svg_import_util.cpp
rename to svg-flatten/src/svg_import_util.cpp
diff --git a/src/svg_import_util.h b/svg-flatten/src/svg_import_util.h
similarity index 100%
rename from src/svg_import_util.h
rename to svg-flatten/src/svg_import_util.h
diff --git a/src/svg_path.cpp b/svg-flatten/src/svg_path.cpp
similarity index 100%
rename from src/svg_path.cpp
rename to svg-flatten/src/svg_path.cpp
diff --git a/src/svg_path.h b/svg-flatten/src/svg_path.h
similarity index 100%
rename from src/svg_path.h
rename to svg-flatten/src/svg_path.h
diff --git a/src/svg_pattern.cpp b/svg-flatten/src/svg_pattern.cpp
similarity index 100%
rename from src/svg_pattern.cpp
rename to svg-flatten/src/svg_pattern.cpp
diff --git a/src/svg_pattern.h b/svg-flatten/src/svg_pattern.h
similarity index 100%
rename from src/svg_pattern.h
rename to svg-flatten/src/svg_pattern.h
diff --git a/src/vec_core.cpp b/svg-flatten/src/vec_core.cpp
similarity index 100%
rename from src/vec_core.cpp
rename to svg-flatten/src/vec_core.cpp
diff --git a/src/vec_core.h b/svg-flatten/src/vec_core.h
similarity index 100%
rename from src/vec_core.h
rename to svg-flatten/src/vec_core.h
diff --git a/src/vec_grid.cpp b/svg-flatten/src/vec_grid.cpp
similarity index 100%
rename from src/vec_grid.cpp
rename to svg-flatten/src/vec_grid.cpp
diff --git a/src/vec_grid.h b/svg-flatten/src/vec_grid.h
similarity index 100%
rename from src/vec_grid.h
rename to svg-flatten/src/vec_grid.h