We started Seam (YC S20) a year ago to take on the problem of programmatic access to physical spaces (apartments, single-family homes, commercial buildings...etc). Basically one API that can open any door (smart locks, elevators, commercial buildings...etc). We're still in private beta but feel free to reach out if you're struggling with programmatic access. tbh, it's baffling that in 2021, this problem is still so d…
Breather tried to do that out of Montreal and went bankrupt this year, not sure how much overlap there is with your system.
ps: your personal site is really interesting.