feat: how to install osu on eos guide

src/blog/Install-osu-on-eOS.md

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+---
+id: 4
+title: Install osu! on Endeavour OS
+description: A guide on how to install osu! on Endeavour OS
+date: 17/12/2023
+---
+
+Alright, so you want to install osu! on Endeavour OS. I just reinstalled my system. Two birds with one stone!
+Based on https://wiki.archlinux.org/title/User:Katoumegumi
+
+# Backstory
+
+My Windows installation has been unstable since year 1 of my computer, and it even went to the point that when I open osu! sometimes it would just not work, black out my screen and play the last sound it was playing (see audio when a BSOD happens)  
+Yesterday I went to install [the latest update](https://osu.ppy.sh/home/changelog/stable40/20231217.1), click on restart, yadiyadiyada and unfortunately my computer CRASHED. I didn't feel nervous until I opened up the game to play a bit and find out that my skin was the default one.
+
+Okay, strange, lemme open up the game...
+
+It starts importing all beatmaps.
+
+Okay then, a bit understandable because the update is all about difficulty calculator.
+
+When it finishes, I go to my most recent plays.  
+Nothing.  
+Never played.  
+What?
+
+I go into my collections.  
+They're still there.  
+Okay, but are the scores there?  
+NO!
+
+Thus, after recovering my replays using a batch scripts that opens all `.osr` files in my `Data\r` folder, I just moved to linux, and this is a writeup on how I've been installing the game since my first time in April.
+
+Enjoy!
+
+# Installation
+
+## Installing Wine
+
+We first need to install wine and winetricks, to do so run:
+```sh
+sudo pacman -S wine
+wget https://raw.githubusercontent.com/Winetricks/winetricks/master/src/winetricks
+chmod +x winetricks
+sudo mv ./winetricks /usr/local/bin/winetricks
+```
+
+## Preparing wineprefix
+
+We now need to install dependencies like fonts or dotnet to make osu! run correctly
+```sh
+WINEARCH=win32 WINEPREFIX=~/.wineosu winetricks dotnet40 cjkfonts gdiplus
+```
+
+## Installing osu!
+
+Skipping this part, but basically download the installer and run it.  
+I already have my own 3-year-old installation with all my everything on it, so I'm bind-mounting it.
+
+Create a directory:
+```sh
+mkdir ~/.wineosu/osu
+```
+And then I added the following fstab line:
+```sh
+/mnt/HDD/osu! /home/srizan/.wineosu/osu none defaults,bind 0 0
+```
+
+## Trying to open it up
+
+Running `WINEARCH=win32 WINEPREFIX=~/.wineosu wine ~/.wineosu/osu/osu\!.exe` twice leads us in the osu! installer with no network connection found.
+
+This is a bit easy to fix, as Wine itself yields this error if you scroll up a bit:
+```sh
+01b0:err:winediag:process_attach Failed to load libgnutls, secure connections will not be available.
+```
+Looking the package up in the [Arch Linux repos](https://archlinux.org/packages/?q=libgnutls), a package called `lib32-gnutls` shows up which looks to be exactly what we want.
+
+After installing it, the SSL connection worked and the game is going to sta- too bad!
+![](/blog/img/osu-eOS/graphicsContext.png)  
+You thought that was gonna be IT!
+
+It wants a GL context, which we don't have, so installing [`lib32-mesa`](https://archlinux.org/packages/multilib-testing/x86_64/lib32-mesa/) fixes it. Easy!
+
+Now, the window is... dark? WHEN ARE WE DONE MAN?  
+Welp, when going to almost the top of the file, we can see this:
+```sh
+0024:err:winediag:create_gl_drawable XComposite is not available, using GLXPixmap hack.
+```
+"GLXPixmap hack"?  
+The game is, according to peppy, held with duct tape, so no hacks are really going to work.
+
+Here we go, [yet ANOTHER lib32 package](https://archlinux.org/packages/multilib/x86_64/lib32-libxcomposite/) should fix it.
+
+It opens up!  
+![](/blog/img/osu-eOS/noaudio.mp4)
+
+Yeah. Nice. No audio.  
+Browsing through the Arch forums I found ![this post](https://bbs.archlinux.org/viewtopic.php?id=135032), and I installed the three `lib32-alsa-plugins lib32-libpulse lib32-openal` packages.
+
+And it started up! (too lazy to screenshot)
+
+## Setting up the start script
+
+edit a file in `~/.wineosu/osu/start.sh` with the following contents:
+```sh
+#!/usr/bin/env bash
+
+# props to Katoumegumi for the original script, this is exactly the same one and it works wonders.
+#export PATH="$HOME/.wineosu/osuwine/bin:$PATH" #Use custom WINE version to run osu!
+export WINEARCH=win32
+export WINEPREFIX="$HOME/.wineosu"
+#export WINEFSYNC=1
+
+#VSync. For some reason, some people had been getting input latency issues and for some reason, the fix is to set VSync to off.
+export vblank_mode=0 #For AMD, Intel and others
+export __GL_SYNC_TO_VBLANK=0 #For NVIDIA proprietary and open source >=500
+
+#export STAGING_AUDIO_PERIOD=10000
+
+#start osu!
+wine osu\!.exe
+```
+
+## Setting up the freedesktop entry
+
+Download the osu! logo:
+```sh
+wget --output-document ~/.wineosu/osu/icon.png https://github.com/ppy/osu-wiki/raw/master/wiki/Brand_identity_guidelines/img/usage-full-colour.png
+```
+and finally edit a new file in the path `~/.local/share/applications/osu.desktop`
+```
+[Desktop Entry]
+Type=Application
+Comment=A free-to-play rhythm game inspired in Osu! Tataekae! Ouendan!
+Icon=/home/<username>/.wineosu/osu/icon.png
+Exec=/home/<username>/.wineosu/osu/start.sh
+Path=/home/<username>/.wineosu/osu
+GenericName=osu!
+Name=osu!
+StartupNotify=true
+```
+
+# that's it
+
+Way harder than I thought. If you want the command with all dependencies, type in:
+```sh
+sudo pacman -S lib32-gnutls lib32-mesa lib32-alsa-plugins lib32-libpulse lib32-openal
+```