refactor: add warning in env setup and building

Author: oskarscot

content/docs/en/guides/plugin/build-and-test.mdx

@@ -5,6 +5,10 @@ authors:
     - name: "Michael B"
 ---
 
+<Callout type="warning">
+This guide is outdated and will be updated soon. Whilst this guide is still accurate, there are now better alternatives for building your mod.
+</Callout>
+
 If you followed along with the [Setting Up Your Development Environment](./setting-up-env) page, you should now be able to build your project.
 
 ## Building Your Mod

content/docs/en/guides/plugin/setting-up-env.mdx

@@ -6,6 +6,11 @@ authors:
       link: "https://itsneil.dev"
 ---
 
+<Callout type="warning">
+This guide is outdated and will be updated soon. Whilst this guide is still accurate, there are now better alternatives for setting up your environment.
+</Callout>
+
+
 This guide will walk you through setting up a complete development environment for Hytale modding, including all necessary tools and dependencies.
 
 ## Prerequisites