Add Arch Linux installation guide

Author: KorigamiK

installation.md

@@ -14,5 +14,6 @@ Pick the installation guide for your system:
 - [Ubuntu](installation/ubuntu.html)
 - [Fedora](installation/fedora.html)
 - [Debian](installation/debian.html)
+- [Arch Linux](installation/arch.html)
 
 If your operating system is not listed above, use the [Docker installation guide](installation/docker.html).

installation/arch.md

@@ -0,0 +1,106 @@
+---
+title: Installation on Arch Linux
+layout: home
+nav_exclude: true
+---
+
+# Installation on Arch Linux
+
+{: .fs-8 .fw-700 .text-center }
+
+Arch Linux users can install the PSP SDK using packages available in the Arch
+User Repository (AUR). There are two primary options: a pre-compiled binary
+package (recommended for faster installation) and a source package (which builds
+the SDK locally).
+
+## Prerequisites
+
+{: .fs-6 .fw-700 }
+
+### AUR Helper (Optional but Recommended)
+
+An AUR helper (like `yay`, `paru`, etc.) simplifies installing and updating AUR
+packages. If you don't have one, you can find instructions on the
+[Arch Wiki's AUR helpers page](https://wiki.archlinux.org/title/AUR_helpers).
+Using an AUR helper is assumed for the simplified commands below, but manual
+installation steps are also provided.
+
+## Installation via AUR (Recommended - Binary)
+
+{: .fs-6 .fw-700 }
+
+The [`psp-sdk-bin`](https://aur.archlinux.org/packages/psp-sdk-bin) package,
+provides pre-compiled binaries for the PSP SDK, making installation much faster.
+
+**Using an AUR helper (e.g., `yay`):**
+
+```shell
+yay -S psp-sdk-bin
+```
+
+**Manual Installation:**
+
+```shell
+# Clone the build files
+git clone https://aur.archlinux.org/psp-sdk-bin.git
+cd psp-sdk-bin
+
+# Build and install the package
+makepkg -si
+
+# Clean up (optional)
+cd ..
+rm -rf psp-sdk-bin
+```
+
+## Installation via AUR (Alternative - Source)
+
+{: .fs-6 .fw-700 }
+
+The [`psp-sdk`](https://aur.archlinux.org/packages/psp-sdk) package builds the
+entire SDK from source. This takes significantly longer but ensures you are
+building against your system's exact libraries.
+
+**Warning:** Building the full SDK can take a considerable amount of time and
+CPU resources.
+
+**Using an AUR helper (e.g., `yay`):**
+
+```shell
+yay -S psp-sdk
+```
+
+**Manual Installation:**
+
+```shell
+# Clone the build files
+git clone https://aur.archlinux.org/psp-sdk.git
+cd psp-sdk
+
+# Build and install the package (this will take a while!)
+makepkg -si
+
+# Clean up (optional)
+cd ..
+rm -rf psp-sdk
+```
+
+## Verification
+
+{: .fs-6 .fw-700 }
+
+From a new terminal, run the following command to confirm the SDK is found and
+the environment variable is set:
+
+```shell
+psp-config --pspdev-path
+```
+
+This command should output the path you set for `PSPDEV` (e.g., `/opt/pspdev`).
+If the command itself is not found, ensure `/opt/pspdev/bin` (or the equivalent
+`bin` directory for your installation) is in your `PATH`. The profile script
+installed by the AUR package should handle this automatically after logging out
+and back in or rebooting.
+
+That's it, now the PSP SDK can be used to build PSP software. Check out the
+[How to Use](../how_to_use.html) page for a guide on how to do so.