diff --git a/.gitattributes b/.gitattributes
index 16ef5c5f..ec1f5039 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,11 @@
 # GitHub syntax highlighting
 pixi.lock linguist-language=YAML
 
+.gitattributes export-ignore
+.hgignore export-ignore
+
+old export-ignore
+scripts export-ignore
+bench export-ignore
+
+tmp_bug_unearth.py export-ignore
diff --git a/Makefile b/Makefile
index aca6b9ef..9ebc9ca3 100644
--- a/Makefile
+++ b/Makefile
@@ -14,12 +14,6 @@ sync:
 lock:
 	pdm lock -G :all
 
-dist:
-	pip install build
-	cd lib && python -m build
-	python -m build
-	mv -f lib/dist/* dist/
-
 clean_so:
 	find fluidsim -name "*.so" -delete
 
diff --git a/postBuild b/postBuild
deleted file mode 100755
index cf818f77..00000000
--- a/postBuild
+++ /dev/null
@@ -1,5 +0,0 @@
-# Commands to run on Binder https://mybinder.org after building from
-# environment.yml
-cd lib && pip install -e . && cd ..
-export DISABLE_PYTHRAN=1
-pip install -e .