On Sunday, 2 May 2021 at 08:58:30 UTC, Danny Arends wrote:

Any thoughts on why loading the Vulkan library using SDL2 would not work ?
thoughts in general about the process ?

Just few tips.
GC "crashes" since you have custom main, D default main has runtime initialization code so it "just works", in you custom main function try to do this before any call to D code.

https://dlang.org/phobos/core_runtime.html#.Runtime.initialize

```d
extern(C) main()
{
    import core.runtime;
    Runtime.initialize();
    scope(exit)
      Runtime.terminate();
}
```

As for SDL2, are you sure it was built with Vulkan support?
Do you have any other Vulkan apps to test if it actually supported by your device?

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