> Shader devs are next level; it’s a type of tight, repetitive iteration which is super different from the webby, protocoly, applicationy development that many of us are used to. There’s something really satisfying about changing a float, pressing shift-enter, and then immediately seeing a result.

Is working with the javascript canvas or abstractions on it like p5.js similar to what you're describing? Im not sure if you're talking about graphics programming (some familiarity with) or more specifically working with GPU shaders (no familiarity).