runtimeConfig schema validation

[Velka-DEV]

Describe the feature

Instead of defining overridable empty values inside the (nitro|nuxt).config.ts file, we should be able to define a schema using a validation library like zod or valibot.

Actual overridable values runtimeConfig

//https://nitro.unjs.io/config
export default defineNitroConfig({
  srcDir: "server",

  runtimeConfig: {
    betterAuth: {
      secret: "",
      url: "",
    },
    turnstile: {
      secretKey: "",
    },
    cronSecret: "",
    upstash: {
      redis: {
        url: "",
        token: "",
      },
    },
    posthog: {
      apiKey: "",
      apiHost: "",
    },
  },
});

Schema based runtimeConfig

import { z } from "zod";

//https://nitro.unjs.io/config
export default defineNitroConfig({
  srcDir: "server",

  runtimeConfig: {
    betterAuth: {
      secret: z.string().min(32).max(32),
      url: z.string().url(),
    },
    turnstile: {
      secretKey: z.string().min(1),
    },
    cronSecret: z.string().min(1),
    upstash: {
      redis: {
        url: z.string().min(1),
        token: z.string().min(1),
      },
    },
    posthog: {
      apiKey: z.string().min(1),
      apiHost: z.string().min(1),
    },
  },
});

Additional information

• Would you be willing to help implement this feature?