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@@ -1,22 +1,32 @@
-**System requirements:**
+# Ultimate Doom Builder
+
+## System requirements
 - 2.4 GHz CPU or faster (multi-core recommended)
 - Windows 7, 8 or 10
 - Graphics card with OpenGL 3.2 support
 
-**Required software on Windows:**
+### Required software on Windows
 - [Microsoft .Net Framework 4.7.2](https://dotnet.microsoft.com/download/dotnet-framework/net472)
 
-**Building on Linux:**
-
-These instructions are for Debian-based distros and were tested with Ubuntu 24.04 LTS. For others it should be similar.
+## Building on Linux
+These instructions are for Debian-based distros and were tested with Ubuntu 24.04 LTS and Arch.
 
-__Note:__ this is experimental. None of the developers are using Linux as a desktop OS, so you're pretty much on your own if you encounter any problems with running the application.
+__Note:__ this is experimental. None of the main developers are using Linux as a desktop OS, so you're pretty much on your own if you encounter any problems with running the application.
 
-- Install Mono. The `mono-complete` package from the Debian repo doesn't include `msbuild`, so you have to install `mono-complete` by following the instructions on the Mono project's website: https://www.mono-project.com/download/stable/#download-lin
-- Install additional required packages: `sudo apt install make g++ git libx11-dev libxfixes-dev mesa-common-dev`
+- Install Mono
+  - **Ubuntu:** The `mono-complete` package from the Debian repo doesn't include `msbuild`, so you have to install `mono-complete` by following the instructions on the Mono project's website: https://www.mono-project.com/download/stable/#download-lin
+  - **Arch:** mono (and msbuild which is also required) is in the *extra/* repo, which is enabled by default. `sudo pacman -S mono mono-msbuild`
+- Install additional required packages
+  - **Ubuntu:** `sudo apt install make g++ git libx11-dev libxfixes-dev mesa-common-dev`
+  - **Arch:** `sudo pacman -S base-devel`
+    - If you're using X11 display manager you may need to install these packages: `libx11 libxfixes`
+    - If you are not using the proprietary nvidia driver you may need to install `mesa`
 - Go to a directory of your choice and clone the repository (it'll automatically create an `UltimateDoomBuilder` directory in the current directory): `git clone https://github.com/jewalky/UltimateDoomBuilder.git`
 - Compile UDB: `cd UltimateDoomBuilder && make`
 - Run UDB: `cd Build && ./builder`
+- Alternatively, to compile UDB in debug mode:
+  - Run `make BUILDTYPE=Debug` in the root project directory
+  - This includes a debug output terminal in the bottom panel
 
 **Links:**
 - [Official thread link](https://forum.zdoom.org/viewtopic.php?f=232&t=66745)