You can do a self hosted runner on arm though, even on a Raspberry Pi (if inclined), so not sure it's prohibitively expensive to a startup, could even afford a

You can do a self hosted runner on arm though, even on a Raspberry Pi (if inclined), so not sure it's prohibitively expensive to a startup, could even afford a spot graviton :D I've got to say though, I've not experience that delta in build times, even emulated on my machine.