diff --git a/.nvmrc b/.nvmrc
new file mode 100644
index 0000000..e4ecad2
--- /dev/null
+++ b/.nvmrc
@@ -0,0 +1 @@
+8.11.4
\ No newline at end of file
diff --git a/gem/.ruby-version b/gem/.ruby-version
new file mode 100644
index 0000000..bd4053b
--- /dev/null
+++ b/gem/.ruby-version
@@ -0,0 +1 @@
+2.6.3
\ No newline at end of file