Updated AMD ROCm (markdown)

AMD-ROCm.md

@@ -1,9 +1,10 @@
 # AMD ROCm
 
-## ROCm on Ubuntu
+## ROCm on Linux
 
 ### Install Guide for Ubuntu 24.04
 
+Install ROCm:
 ```
 sudo apt update
 wget https://repo.radeon.com/amdgpu-install/6.3.2/ubuntu/noble/amdgpu-install_6.3.60302-1_all.deb
@@ -12,7 +13,7 @@ sudo amdgpu-install --usecase=rocm
 sudo usermod -a -G render,video $LOGNAME
 ```  
 
-Installing git:
+Install git:
 ```shell
 sudo apt install git
 ```
@@ -21,6 +22,36 @@ sudo apt install git
 
 Simply change the wget line from "noble" to "jammy" if using Ubuntu 22.04.  
 
+
+### Install Guide for Arch Linux
+
+Install ROCm and git:  
+```shell
+sudo pacman -S rocm-hip-runtime git
+```
+
+Install Python 3.12 (or anything between 3.10 and 3.12):  
+```shell
+sudo pacman -S base-devel python-pip python-virtualenv
+git clone https://aur.archlinux.org/python312.git
+cd python312
+makepkg -si
+cd ..
+export PYTHON=python3.12
+
+# remove the package builder residuals:
+# rm -rf python312
+```
+
+Install ROCm SDK:  
+> [!NOTE]
+> ROCm SDK is optional. Only required for building flash atten or similar custom kernels.  
+> ROCm SDK uses 26 GB of disk space.  
+```shell
+sudo pacman -S rocm-hip-sdk
+```
+
+
 ### Running SD.Next with ROCm on Linux  
 
 Open the terminal in a folder you want to install SD.Next and install SD.Next from Github with this command:  
@@ -42,7 +73,7 @@ Then run SD.Next with this command:
 > It will install the necessary libraries at the first run so it will take a while depending on your internet.  
 
 
-## Running SD.Next and ROCm with Docker
+## Running SD.Next with Docker
 Checkout the [Docker wiki](https://github.com/vladmandic/sdnext/wiki/Docker) if you want to build a custom Docker image.  
 
 > [!NOTE]