diff --git a/.envrc b/.envrc
deleted file mode 100644
index 94840b3..0000000
--- a/.envrc
+++ /dev/null
@@ -1 +0,0 @@
-layout python3
diff --git a/.rtx.toml b/.rtx.toml
new file mode 100644
index 0000000..f2754f7
--- /dev/null
+++ b/.rtx.toml
@@ -0,0 +1,2 @@
+[tools]
+python = {version="3.11", virtualenv=".venv"}
diff --git a/.tool-versions b/.tool-versions
deleted file mode 100644
index 49056c3..0000000
--- a/.tool-versions
+++ /dev/null
@@ -1,2 +0,0 @@
-golang 1.16.15
-python 3.11.2