I feel like they could have avoided all this argument by saying won’t raise taxes on working people’s earnings, rather than just working people. Any sane and honest person knows what they meant and the whole thing is just trying to gotcha them. Just shows they don’t have any substantive criticism.
Maybe someone else will have a better answer but in similar situations I’ve seen the derivation simply downloads a compiled release directly.
I ran into the same issue trying to package silverbullet which uses deno and I gave up, later I saw it was added to nixpkgs by just downloading the github release.