This is kinda good...
...but better would be a selection of decently priced, variants of biometric password replacements - for example, where are all the fingerprint readers in this format (pluggable USB) that we can use cheaply, and with a multitude of operating systems (Win/macOS/Linux/OS/2/etc)?
There have been decent fingerprint readers in phones for years now. They should be a simple, cheap and effective way to authenticate yourself to your computer, without having to resort to images being taken over time (as is the case here), in turn presenting a potential privacy and/or security issue.