diff --git a/.gitignore b/.gitignore
index b2c0bb55..021b1e87 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,7 +19,10 @@ environment*
 env.d/
 
 # Snakemake state dir
-.snakemake
+.snakemake/
+
+# Git dir
+.git/
 
 # Local config overrides
 /config_local.yaml
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..eec13042
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[tool.snakefmt]
+include = '\.smk$|^Snakefile'
+exclude = ''