diff --git a/.gitignore b/.gitignore
index f3709c0..d43ea55 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 src/__pycache__/
 _build/
-NewLang
diff --git a/Makefile b/Makefile
index c07c906..3671772 100644
--- a/Makefile
+++ b/Makefile
@@ -1,14 +1,20 @@
 SHELL=/bin/bash
 
-build: clean_pycache
-	python3 -m zipapp src -p "/usr/bin/env python3" -c -m "main:main" -o NewLang
+build: _build
+	test ! -d _build/zip || rm -r _build/zip
+	mkdir -p _build/zip
+	cp -r src _build/zip
+	test ! -d _build/zip/src/__pycache__ || rm -r _build/zip/src/__pycache__
+	python3 -m zipapp _build/zip/src -p "/usr/bin/env python3" -c -m "main:main" -o _build/NewLang
 
-clean_pycache:
-	test ! -d src/__pycache__ || rm -r src/__pycache__
+clean:
+	test ! -d _build || rm -r _build
 
-clean: clean_pycache clean_build
-	test ! -e NewLang || rm NewLang
+tidy: _build/.stamp_venv
+	source _build/venv/bin/activate && black src
 
+venv_bash: _build/.stamp_venv
+	source _build/venv/bin/activate && bash
 _build:
 	mkdir -p _build
 
@@ -16,12 +22,3 @@
 	python3 -m venv _build/venv
 	source _build/venv/bin/activate && pip install -r requirements.txt
 	touch _build/.stamp_venv
-
-tidy: _build/.stamp_venv
-	source _build/venv/bin/activate && black src
-
-clean_build:
-	rm -rf _build/
-
-venv_bash: _build/.stamp_venv
-	source _build/venv/bin/activate && bash