refactor: dont depend on libpng and libdl, update docs

.devcontainer/Dockerfile

@@ -7,31 +7,18 @@ RUN apt-get update \
     && apt-get install -y software-properties-common \
     && add-apt-repository -y ppa:ubuntu-toolchain-r/test \
     && apt-get update \
-    && apt-get install -y \
+    && sudo apt-get install -y \
         build-essential \
-        cmake \
-        libglfw3-dev \
+        python3 \
+        ninja-build \
+        meson \
+        libsdl2-dev \
         libgl-dev \
         libglu1-mesa-dev \
-        libopenal-dev \
-        libvorbis-dev \
-        libpng-dev \
-        libpthread-stubs0-dev \
-        clang \
-        lld \
-        meson \
-        ninja-build \
-        gcc-15 \
-        g++-15 \
+        libpthread-stubs0-dev
     # Clean up lol
     && apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*
 
-# Set GCC 15 as default
-RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-15 100 \
-    && update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-15 100 \
-    && update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 100 \
-    && update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 100
-
 ENV DEBIAN_FRONTEND=dialog