diff --git a/haskell/.gitignore b/haskell/.gitignore
new file mode 100644
index 0000000..92b2793
--- /dev/null
+++ b/haskell/.gitignore
@@ -0,0 +1 @@
+.direnv
diff --git a/jupyter/.gitignore b/jupyter/.gitignore
new file mode 100644
index 0000000..32f9e41
--- /dev/null
+++ b/jupyter/.gitignore
@@ -0,0 +1,2 @@
+.direnv
+.ipynb_checkpoints
diff --git a/minimum/.gitignore b/minimum/.gitignore
new file mode 100644
index 0000000..92b2793
--- /dev/null
+++ b/minimum/.gitignore
@@ -0,0 +1 @@
+.direnv
diff --git a/rust/.gitignore b/rust/.gitignore
index 2f7896d..599a890 100644
--- a/rust/.gitignore
+++ b/rust/.gitignore
@@ -1 +1,2 @@
 target/
+.direnv