You can also get proper access control systems but those are more expensive. Ubiquiti has one but the additional encryption that it supports is not compatible with implants so you’d have to use it in chip UID only mode. This should be ok for most purposes. HID also makes a few systems.
There’s a list of tested readers on this page:
There are also a few threads on door locks, here’s a recent thread on the matter:
And of course, if you can make your own hardware, I encourage you do do so. Building stuff is awesome!