Archive notice: point to Ployz

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README.md

@@ -1,3 +1,11 @@
+> [!IMPORTANT]
+> **This project is archived.** Containr's goal — Railway's workflow on servers
+> you own — is being done better by [Ployz](https://github.com/getployz/ployz)
+> (Apache-2.0 engine + AGPL dashboard, self-hostable). Use that. This repo stays
+> up as a reference; the canvas implementation in
+> `app/frontend/src/features/workspace/canvas/` (group frames, context menus,
+> inferred edges with reasons) may still be worth a look.
+
 <p align="center">
   <img src="./containr.svg" alt="Containr" width="120">
 </p>