diff --git a/Readme.md b/Readme.md
index 402d96e..51512ad 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,20 +1,28 @@
 # Mono + GTK# + Glade — WSL Setup Guide
 
 ## Table of Contents
-- [1. Prerequisites](#1-prerequisites)
-- [2. Install Mono](#2-install-mono)
-- [3. Install GTK# (GTK# 3.0, for Ubuntu 24.04)](#3-install-gtk-gtk-30-for-ubuntu-2404)
-- [4. Install Glade (visual UI designer)](#4-install-glade-visual-ui-designer)
-- [5. Optional: libgdiplus (only if using System.Drawing)](#5-optional-libgdiplus-only-if-using-systemdrawing)
-- [6. Compiling & Running](#6-compiling--running)
-- [7. Minimal Working Examples](#7-minimal-working-examples)
-- [8. Custom Output Names, Targets & Exporting DLLs](#8-custom-output-names-targets--exporting-dlls)
-- [9. Common Errors & Fixes](#9-common-errors--fixes)
-- [10. Notes on Alternatives](#10-notes-on-alternatives)
+- [Mono](#mono)
+  - [1. Prerequisites](#1-prerequisites)
+  - [2. Install Mono](#2-install-mono)
+  - [3. Install GTK# (GTK# 3.0, for Ubuntu 24.04)](#3-install-gtk-gtk-30-for-ubuntu-2404)
+  - [4. Install Glade (visual UI designer)](#4-install-glade-visual-ui-designer)
+  - [5. Optional: libgdiplus (only if using System.Drawing)](#5-optional-libgdiplus-only-if-using-systemdrawing)
+  - [6. Compiling & Running](#6-compiling--running)
+  - [7. Minimal Working Examples](#7-minimal-working-examples)
+  - [8. Custom Output Names, Targets & Exporting DLLs](#8-custom-output-names-targets--exporting-dlls)
+  - [9. Common Errors & Fixes](#9-common-errors--fixes)
+  - [10. Notes on Alternatives](#10-notes-on-alternatives)
+- [OS](#os)
+  - [Workflow](#workflow)
+  - [OS images checked](#os-images-checked)
+  - [OS images to check](#os-images-to-check)
+
 
 ---
 
-## 1. Prerequisites
+## Mono
+
+### 1. Prerequisites
 - Windows 11 (or updated Windows 10) with WSL2 and **WSLg** enabled for GUI support
 - Ubuntu 24.04 (noble) or similar WSL distro
 
@@ -26,7 +34,7 @@
 
 ---
 
-## 2. Install Mono
+### 2. Install Mono
 
 ```bash
 sudo apt update
@@ -41,7 +49,7 @@
 
 ---
 
-## 3. Install GTK# (GTK# 3.0, for Ubuntu 24.04)
+### 3. Install GTK# (GTK# 3.0, for Ubuntu 24.04)
 
 > Note: `gtk-sharp2` is **not available** on Ubuntu 24.04 (noble). Use `gtk-sharp3` instead.
 
@@ -59,7 +67,7 @@
 gtk-sharp-3.0 Gtk - Gtk
 ---
 
-## 4. Install Glade (visual UI designer)
+### 4. Install Glade (visual UI designer)
 
 ```bash
 sudo apt install glade
@@ -73,7 +81,7 @@
 
 ---
 
-## 5. Optional: libgdiplus (only if using System.Drawing)
+### 5. Optional: libgdiplus (only if using System.Drawing)
 
 Only needed if your code uses `System.Drawing.Bitmap`, `Graphics`, etc. (not required for plain GTK#/Glade apps):
 
@@ -83,21 +91,21 @@
 
 ---
 
-## 6. Compiling & Running
+### 6. Compiling & Running
 
-### Plain console C# program
+#### Plain console C# program
 ```bash
 mcs myprogram.cs
 mono myprogram.exe
 ```
 
-### GTK# 3.0 program (no Glade)
+#### GTK# 3.0 program (no Glade)
 ```bash
 mcs -pkg:gtk-sharp-3.0 myapp.cs
 mono myapp.exe
 ```
 
-### GTK# 3.0 program using a Glade file
+#### GTK# 3.0 program using a Glade file
 ```bash
 mcs -pkg:gtk-sharp-3.0 -pkg:glade-sharp-3.0 myapp.cs
 mono myapp.exe
@@ -106,9 +114,9 @@
 
 ---
 
-## 7. Minimal Working Examples
+### 7. Minimal Working Examples
 
-### Hello World (console)
+#### Hello World (console)
 ```csharp
 using System;
 
@@ -123,7 +131,7 @@
 mono hello.exe
 ```
 
-### Hello World (GTK# window, no Glade)
+#### Hello World (GTK# window, no Glade)
 ```csharp
 using System;
 using Gtk;
@@ -149,7 +157,7 @@
 mono gtkcheck.exe
 ```
 
-### Loading a UI built in Glade
+#### Loading a UI built in Glade
 ```csharp
 using System;
 using Gtk;
@@ -175,11 +183,11 @@
 
 ---
 
-## 8. Custom Output Names, Targets & Exporting DLLs
+### 8. Custom Output Names, Targets & Exporting DLLs
 
 By default, `mcs file.cs` names the output after the source file (`file.exe`). You can control this with `-out:` and change what kind of binary is produced with `-target:`.
 
-### 8.1 Custom output name
+#### 8.1 Custom output name
 ```bash
 mcs -pkg:gtk-sharp-3.0 Program.cs -out:MyCustomApp.exe
 ```
@@ -188,7 +196,7 @@
 mono MyCustomApp.exe
 ```
 
-### 8.2 `-target` options
+#### 8.2 `-target` options
 | Target | Produces | Notes |
 |---|---|---|
 | `exe` (default) | Console executable | Shows a console window when run on Windows |
@@ -202,7 +210,7 @@
 ```
 This produces `programwin.exe`, which on Windows will run without popping up a console window alongside your GTK window.
 
-### 8.3 Exporting a DLL
+#### 8.3 Exporting a DLL
 
 If you want to package reusable code (helper classes, business logic, etc.) as a library instead of a standalone app:
 
@@ -213,7 +221,7 @@
 - No `Main()` method is required in a `library` target (though it's fine if one class in your project has one — it just won't be used as an entry point for the DLL itself).
 - This creates `MyLibrary.dll`, a Mono/.NET assembly that other C# programs can reference.
 
-### 8.4 Using a DLL in another program
+#### 8.4 Using a DLL in another program
 
 Suppose `MyLibrary.dll` contains:
 ```csharp
@@ -253,7 +261,7 @@
 mono ConsumerApp.exe
 ```
 
-### 8.5 Combining `-target:library` with GTK# packages
+#### 8.5 Combining `-target:library` with GTK# packages
 If your DLL itself uses GTK# types (e.g., a shared custom widget), include the package flag when building the library too:
 ```bash
 mcs -target:library -pkg:gtk-sharp-3.0 MyGtkWidgets.cs -out:MyGtkWidgets.dll
@@ -263,7 +271,7 @@
 mcs -pkg:gtk-sharp-3.0 ConsumerApp.cs -r:MyGtkWidgets.dll -out:ConsumerApp.exe
 ```
 
-### 8.6 Quick reference
+#### 8.6 Quick reference
 ```bash
 # Console exe, custom name
 mcs Program.cs -out:myapp.exe
@@ -278,7 +286,7 @@
 mcs Consumer.cs -r:MyLibrary.dll -out:Consumer.exe
 ```
 
-### 8.7 Running the compiled .exe on Windows (outside WSL)
+#### 8.7 Running the compiled .exe on Windows (outside WSL)
 
 Compiling in WSL produces a `.exe` that targets the .NET/Mono runtime — it is **not** a native Windows binary, and it will not run on Windows by itself. Two things are needed:
 
@@ -308,7 +316,7 @@
 
 ---
 
-## 9. Common Errors & Fixes
+### 9. Common Errors & Fixes
 
 | Error | Cause | Fix |
 |---|---|---|
@@ -322,7 +330,7 @@
 
 ---
 
-## 10. Notes on Alternatives
+### 10. Notes on Alternatives
 
 GTK# is a legacy, lightly-maintained binding. For new projects, consider:
 - **Avalonia UI** — modern, XAML-based, cross-platform, actively maintained
@@ -353,4 +361,22 @@
 
 to run note:
     same for all cases
-        mono NAME_OF_THE_FILE.exe
\ No newline at end of file
+        mono NAME_OF_THE_FILE.exe
+
+## OS
+
+To test the application/setup across different Linux distributions, I used **Ventoy** to create a multiboot USB drive. Ventoy lets you copy multiple ISO files onto a single USB stick and choose which one to boot at startup, without needing to reformat or re-flash the drive for each OS.
+
+### Workflow
+1. Install Ventoy on the target USB drive.
+2. Copy the desired `.iso` files directly onto the Ventoy partition (no extraction needed).
+3. Boot from the USB, select the ISO from the Ventoy boot menu, and test the OS live or install it.
+
+### OS images checked
+- Fedora-Workstation-Live-44-1.7.x86_64
+- lubuntu-26.04-desktop-amd64
+- xubuntu-25.10-desktop-amd64
+
+### OS images to check
+- antiX-26_x64-full
+- xubuntu-26.04-minimal-amd64
\ No newline at end of file