diff --git a/README.md b/README.md
index b2dd8c38..ab355502 100644
--- a/README.md
+++ b/README.md
@@ -20,14 +20,16 @@ Please note: this project is dedicated to achieving platform independence withou
 
 To achieve our goal of platform independence, we need to replace any Windows-only libraries with platform-independent alternatives. This ensures that our codebase remains versatile and compatible across various systems. The following table serves as an overview of major libraries / subsystems and their chosen replacements. For any significant changes or additions, it's recommended to discuss them with the team on the Matrix chat first to ensure consistency and alignment with our project's objectives.
 
-| Library | Substitution | Implementation status | |
+| Library/subsystem | Substitution | Status | |
 | - | - | - | - |
-| [Smacker](https://github.com/isledecomp/isle/tree/master/3rdparty/smacker) | [libsmacker](https://github.com/foxtacles/libsmacker) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable%20%22%2F%2F%20%5Blibrary%3Alibsmacker%5D%22&type=code) |
-| Filesystem | C standard library | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Afilesystem%5D%22&type=code) |
+| Window, Events | [SDL3](https://www.libsdl.org/) | WIP | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Awindow%5D%22&type=code) |
+| Registry (Configuration) | [libiniparser](https://github.com/ndevilla/iniparser) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Aconfig%5D%22&type=code) |
+| Filesystem | [SDL3](https://www.libsdl.org/) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Afilesystem%5D%22&type=code) |
 | Threads, Mutexes (Synchronization) | [SDL3](https://www.libsdl.org/) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Asynchronization%5D%22&type=code) |
 | Keyboard, Mouse, Joystick, DirectInput (Input) | [SDL3](https://www.libsdl.org/) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Ainput%5D%22&type=code) |
-| WinMM, DirectSound (Audio) | [SDL3](https://www.libsdl.org/) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Aaudio%5D%22&type=code) |
+| WinMM, DirectSound (Audio) | [SDL_mixer](https://github.com/libsdl-org/SDL_mixer) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Aaudio%5D%22&type=code) |
 | DirectDraw (2D video) | [SDL3](https://www.libsdl.org/) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3A2d%5D%22&type=code) |
+| [Smacker](https://github.com/isledecomp/isle/tree/master/3rdparty/smacker) | [libsmacker](https://github.com/foxtacles/libsmacker) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable%20%22%2F%2F%20%5Blibrary%3Alibsmacker%5D%22&type=code) |
 | Direct3D (3D video) | [SDL3](https://www.libsdl.org/), OpenGL ES (**TBD**) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3A3d%5D%22&type=code) |
 | Direct3D Retained Mode | Custom re-implementation (**TBD**) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Aretained%5D%22&type=code) |
 | [SmartHeap](https://github.com/isledecomp/isle/tree/master/3rdparty/smartheap) | Default memory allocator | - | - |