Not sure how Gmailify is different from OSS project simplelogin.io (or similar services). Although this kind of service is targeted at privacy, they do exactly

Not sure how Gmailify is different from OSS project simplelogin.io (or similar services). Although this kind of service is targeted at privacy, they do exactly what Gmailify does, are very reliable and can be self-hosted, at least for simplelogin. Moreover, it does not come with such a lock-in. What’s the value proposition here?