diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..61aaf5c
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,6 @@
+# Ignore artifacts:
+build
+coverage
+
+# auto generated files
+src/generated
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..963354f
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,3 @@
+{
+  "printWidth": 120
+}