Just an idea for utilizing zod in a generic manner

zod-generic-parser.ts

import * as z from 'zod'
import { Schema } from 'zod'

export async function parse<T extends Schema>(
  schema: T | ((zod: typeof z) => T),
) {
  const codec = schema instanceof Schema ? schema : schema(z)

  return async function (input: Response) {
    const json = await input.json()

    const result: z.infer<T> | z.ZodError<T> = await codec
    .parseAsync(json)
    .catch(e => e)

    return result
  }
}