feat(docs): add introduction for MSFS

src/pages/msfs/index.mdx

@@ -1,3 +1,87 @@
+import { Callout } from 'nextra/components';
+
 # Microsoft Flight Simulator 2020
 
-This is an introduction for Microsoft Flight Simulator 2020
+This is currently the latest release of Flight Simulator from Microsoft, which has been made for Windows only.
+
+## Running Flight Simulator
+
+Flight Simulator has been able to run with Proton (it works for me on Proton 8.0), which means the only way
+to run this game would be to buy it on
+[Steam](https://store.steampowered.com/app/1250410/Microsoft_Flight_Simulator_40th_Anniversary_Edition/) as the
+Microsoft Store does not work on Linux.
+
+<Callout type="error" emoji="⚠️">
+    Do **NOT** change Proton versions or Verify Game Integrity once you have downloaded the entire game from the simulator
+    as this can cause you to lose everything you have downloaded/installed for the simulator! Make sure to make backups
+    of the `compdata` for Flight Simulator if this is absolutely necessary.
+</Callout>
+
+### Configuring
+
+Some tinkering may also be required to run this game. You can find other people's fixes on
+[ProtonDB](https://www.protondb.com/app/1250410) if you run into problems launching the game.
+
+[Launch options](https://help.steampowered.com/en/faqs/view/7D01-D2DD-D75E-2955) may be needed for this game to start.
+This one below is what works for me:
+
+```
+-FastLaunch
+```
+
+Even if this launch option is not required, this would be useful as it skips the intro video at the beginning.
+
+## Installing Addons
+
+Most of the time, installing addons should be pretty straight forward, unless there is an installer involved.
+
+The addons bought from the store in-game should be able to be installed easily and work out of the box.
+
+### Drag and Drop Installations
+
+Some addons, most commonly freeware where you download it outside of Flight Simulator, are a simple drag and drop
+into the `Community` Folder, which is stored in `compdata` (folder to store Wine/Proton configs/data for each game) >
+`1250410` (Flight Simulator's game ID on Steam).
+
+For example, this is the directory to the `Community` Folder if Flight Simulator is installed in the default location:
+
+```
+~/.steam/steam/steamapps/compatdata/1250410/pfx/drive_c/users/steamuser/AppData/Roaming/Microsoft Flight Simulator/Packages/Community/
+```
+
+The equivalent version of this in Windows is:
+
+```
+C:\users\steamuser\AppData\Roaming\Microsoft Flight Simulator\Packages\Community\
+```
+
+### Executable Installers
+
+<Callout type="warning" emoji="⚠️">
+    Dealing with developer's installers is usually requires more tinkering and therefore you may need more advanced
+    knowledge on Windows and Linux (alongside the Desktop Environment you're using)!
+</Callout>
+
+If you buy addons directly from a developer, it will be likely that you will be given an installer that is an
+executable. These installers cannot be directly run with Wine as this will not use with Wine prefix for Flight
+Simulator.
+
+To make using executable installers easier, you should install
+[Protontricks](https://github.com/Matoking/protontricks#readme) as this will allow you to run installers under
+Flight Simulator's Wine prefix.
+
+Some Desktop Environments will be able to run the file directly in Protontricks if you can right-click the installer
+and open it with `Protontricks Launcher` and then select `Microsoft Flight Simulator` as the Wine prefix.
+
+If you do not have the option to run Protontricks Launcher, you'll have to manually run it in the terminal with
+
+```
+protontricks 1250410 --gui
+```
+
+Then ignore the warnings, click Ok on `Select the default wineprefix`, then select `Run explorer`, which will pop up a
+window for Flight Simulator's Wine directory, where you'll need to navigate through Linux's directory (with the drive
+that has `/`), where you can find the executable and run it.
+
+This is also useful if you want to run certain applications installed later down the line inside `compdata`, or you can
+find the uninstallers in the Protontricks GUI.