Update Makefile to aggressively compress files

- Also, the compression should now be deterministic

Makefile

diff --git a/Makefile b/Makefile
index 59724a4..7cb1d80 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-FILE_SIZE_LIMIT_MB = 25
+FILE_SIZE_LIMIT_MB = 10
 LARGE_FILES := $(shell find . -type f -size +$(FILE_SIZE_LIMIT_MB)M -not -path "./.git/*")
 
 LARGE_FILES_GZ := $(addsuffix .gz, $(LARGE_FILES))
@@ -22,6 +22,7 @@
 	mv mag/caravel_out.gds gds
 
 
+
 .PHONY: clean
 clean:
 	echo "clean"
@@ -35,12 +36,12 @@
 
 
 $(LARGE_FILES_GZ): %.gz: %
-	@if ! [ $(suffix $<) == ".gz" ]; then\
-		gzip -n $< > /dev/null &&\
+	if ! [ $(suffix $<) == ".gz" ]; then\
+		gzip -n --best $< > /dev/null &&\
 		echo "$< -> $@";\
 	fi
 
-# This target compresses all files larger than 25 MB
+# This target compresses all files larger than $(FILE_SIZE_LIMIT_MB) MB
 .PHONY: compress
 compress: $(LARGE_FILES_GZ)
 	@echo "Files larger than $(FILE_SIZE_LIMIT_MB) MBytes are compressed!"
@@ -48,8 +49,8 @@
 
 
 $(ARCHIVE_SOURCES): %: %.gz
-	gzip -d $< &&\
-	echo "$< -> $@"
+	@gzip -d $< &&\
+	echo "$< -> $@";\
 
 .PHONY: uncompress
 uncompress: $(ARCHIVE_SOURCES)