No explicit any

src/env.ts

@@ -15,7 +15,8 @@ function formatErrors(errors: z.ZodFormattedError<Map<string, string>, string>)
   return Object.entries(errors)
     .map(([name, value]) => {
       if (value && "_errors" in value) {
-        return `${name}: ${(value as any)._errors.join(", ")}`;
+        const errs = (value as z.ZodFormattedError<string>)._errors;
+        return `${name}: ${errs.join(", ")}`;
       }
       return `${name}: invalid`;
     })