This sounds way too much of a hassle for regular readings. I do blood pressure readings and weigh ins right after the HRV reading every morning. Then I get dressed and off to work. By the time I’m sitting in the train, the Garmin->Intervals sync is done, and I trigger this python script on my server (using an SSH Client on my phone)
I published the python script on GitHub. You’d have to register an app on withings (which is free and as far as I remember instant, so no waiting for anyone to check it) and have some machine (I use one of my linux servers) to run the python script on (right now I do it manually, once garmin synced all the wellness data, but in the future I’m planning to run this completely automated at a specified time every day)
Feel free to ask if anything is unclear, or can be improved.
happy holidays