I have free will and a Claude subscription so I made it happen. You can find it on npm as "@eeeooolll/graphiql" (@eol was taken).
https://www.npmjs.com/package/@eeeooolll/graphiql
I also upgraded my batteries-included GraphQL server to use it. You can find it on JSR.
https://jsr.io/@eol/gq
deno run -A https://code.webb.page/eol/gq.git/plain/remote-example.ts