diff --git a/.devcontainer/@mainh_on b/.devcontainer/@mainh_on
new file mode 100644
index 0000000..1b20942
--- /dev/null
+++ b/.devcontainer/@mainh_on
@@ -0,0 +1 @@
+@342e312e30nVccQ/CTYQpD2TZccrN5XjCiWne6PI05IPWXYAgkyb8=
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..ad93c14
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,5 @@
+{
+  "image": "mcr.microsoft.com/devcontainers/universal:2",
+  "features": {
+  }
+}