Issues working with the Compute Shader Functionality -- Basic Example

[FranciscoJintoFox]

Hello,
I'm having trouble getting a compute shader to work with any functionality. My goal is to pass in an image (or image data), and pass out an output image generated pixel by pixel that I can render to the screen; ideally with the built-in DrawTexture().
I have simplified my code in an attempt to output a single float, written as a constant in the compute shader. I'm also new to Shaders so I may have missed something--but I can't tell what.

Excerpts:
[...]
//Qualify internal format of the (previously) set up output image
layout(std430, binding = 0) buffer rbcLayout{
float rbcBufferDest;
};

void main(){
[...]
rbcBufferDest = 0.25;
}
In the main file, I'm trying to use rlReadShaderBufferElements(ssboA, &temp, sizeof(float), 0); to read the data back into a float. However, printing this value returns either -0.000000 or -nan. I've been trawling through various documentation and tutorials/blogs all day to no avail.

I believe my Raylib and openGL versions are up to date (4.2 and 4.6 respectively).

Thank you to anyone who can give me some advice.

Oh right my compile command is:
gcc -std=c++11 wave8.cpp -lraylib -lGL -lm -lpthread -lrt -lX11 -o wave8.run

I read that hardware could cause issues--I'm running a Radeon RX480 with Ryzen 5 2600X, on an x470 motherboard.

rbc.glsl.txt
rbc_render.glsl.txt
terminalOutput.txt
wave8.cpp.txt

[FranciscoJintoFox]

So I spent some time digging through rlgl.h, the Khronos docs, and some blogs and was able to put together a basic example using (mostly) the raw GL functions. Not sure why this works but the rlgl (which is almost identical) doesn't.
shadertest.cpp.txt
test.glsl.txt
output.txt

[ckw]

Make sure your raylib is compiled with support for opengl 4.3. See #2911 (comment)

[ElectroidDes]

Don't use raylib - use godot. There are fully working compute shaders. Why do you need this raylib?

[jamesl-github]

don't use godot -- use unreal --- godot is a toy compared to unreal -- no real AAA uses godot

[TonyC-code]

Don't use raylib - use godot. There are fully working compute shaders. Why do you need this raylib?

Shut up.. why are you here. Go away.