kinda typing fromEntries result as a enum-ish

gistfile1.txt

type Keys<T extends readonly string[]> = Readonly<{ [key in T[number]]: key }>;

// const keys = ["feat1", "feat2"] as const;

export const makeEnumLikeFromArray = <T extends readonly string[]>(array: T) =>
  Object.fromEntries(array.map((item) => [item, item])) as Keys<T>;

// const a = make<typeof keys>(keys);