Anyone else have or remember the universal HomeLink transmitters that came in cars? Your car had a button that could "learn" the sequence from most garage door

Anyone else have or remember the universal HomeLink transmitters that came in cars? Your car had a button that could "learn" the sequence from most garage door openers, apartment gate clickers, and the like. I would love for this watch to be able to be able to clone all the various NFC-type items and building access cards people carry around. I suspect there are considerable technical and legal obstacles to this, but hey, there's an API!