> However it regularly freezes of hangs for me, and I've lost count of the number of times I've had to 'force quit' Xcode or it's just outright crashed.

This has been my experience too. It isn't often enough to diminish its value for me since I have basically no comparable options on other platforms, but it definitely has some sharp (crashy!) edges.

I didn't even notice who I was replying to at first - so let me start by saying thank you for Ghostty. I spend a great deal of my day in it, and it's a beautifully put together piece of software. I appreciate the work you do and admire your attitude to software and life in general. Enjoy your windfall, ignore the haters, and my best wishes to you and your family with the upcoming addition.

The project I'm mostly working on uses the wgpu crate, https://github.com/gfx-rs/wgpu, which may be of interest if writing cross-platform GPU code. (Though obviously if using Rust, not Zig). With it my project easily runs on Windows (via DX12), Linux (via Vulkan), macOS (via Metal), and directly on the web via Wasm/WebGPU. It is a "lowest common denominator", but good enough for most use-cases.

That said, ever with simple shaders I had to implement some workarounds for Xcode issues (e.g. https://github.com/gfx-rs/wgpu/issues/8111). But still vastly preferable to other debugging approaches and has been indispensable in tracking down a few bugs.