diff --git a/templates/default/.gitignore b/templates/default/.gitignore
index a343c6d..02a869d 100644
--- a/templates/default/.gitignore
+++ b/templates/default/.gitignore
@@ -1,3 +1,6 @@
+# generic
+.local
+
 # direnv
 .direnv/
 .env
@@ -9,16 +12,8 @@ result-*
 
 # rust
 target/
+.cargo/
 
 # nixago: ignore-linked-files
+/treefmt.toml
 treefmt.toml
-
-# nats
-rust/*/tmp
-rust/*/jwt
-rust/*/*/test_leaf_server.conf
-rust/*/*/leaf_server.conf
-rust/*/*/resolver.conf
-leaf_server.conf
-.local
-
diff --git a/templates/default/nix/formatter.nix b/templates/default/nix/formatter.nix
index 34ddf09..1308b56 100644
--- a/templates/default/nix/formatter.nix
+++ b/templates/default/nix/formatter.nix
@@ -34,6 +34,9 @@ let
         "LICENSE"
         # unsupported extensions
         "*.{gif,png,svg,tape,mts,lock,mod,sum,env,envrc,gitignore}"
+
+        # link to a read-only store-path
+        "treefmt.toml"
       ];
 
       formatter = {