Merge pull request #674 from acheampongmaa/docs/clarify-vm-usage

docs(developer_environment): clarify VM usage and remove bare metal preference

Author: metal3-io-bot

docs/user-guide/src/developer_environment/tryit.md

@@ -32,10 +32,17 @@
 ### 1.1. Prerequisites
 
 - System with CentOS 9 Stream or Ubuntu 22.04
-- Bare metal preferred, as we will be creating VMs to emulate bare metal hosts
+- A hosting operating system with QEMU/KVM is required,
+  as this development environment uses VMs to emulate bare metal hosts
 - Run as a user with passwordless sudo access
 - Minimum resource requirements for the host machine: 4C CPUs, 16 GB RAM memory
 
+> **Note:**
+> The `metal3-dev-env` scripts modify parts of the host system,
+> including networking and installed packages.
+> It is strongly recommended to run them in a virtual machine or
+> a dedicated environment to avoid unintended changes to your primary system.
+
 For execution with VMs
 
 - Setup passwordless sudo access
@@ -44,8 +51,8 @@ For execution with VMs
   sudo visudo
 ```
 
-- Include this line at the end of the sudoers file (replace 'username' with the actual
-  account name for passwordless sudo access)
+- Include this line at the end of the sudoers file (replace 'username' with the
+  actual account name for passwordless sudo access)
 
 ```console
   username  ALL=(ALL) NOPASSWD: ALL
@@ -154,8 +161,8 @@ configured.
 
 > **_info:_** "Environment variables"
 > More information about the specific environment variables used to set up
-> metal3-dev-env can be found
-> [here](https://github.com/metal3-io/metal3-dev-env/blob/main/vars.md).
+> metal3-dev-env can be found in the
+> [metal3-dev-env documentation](https://github.com/metal3-io/metal3-dev-env/blob/main/vars.md).
 
 To set environment variables persistently, export them from the configuration
 file used by metal3-dev-env scripts: