Oh wow, I just had a look at that, normally Grafana is used for monitoring things like server response times and internal stats. Using for a Garmin fitness device is awesome! I would never have thought of it as a good way to get that kind of data and see it visually.

Do you use it to see your training progress over time? Or is it more for seeing specific runs and comparing? How do you actually use it? Is it useful for you?

I have a proxmox host on a HP Elitedesk G3 with an i5 7500. In that I have a VM with HAOS and it runs like a dream. If something goes horribly wrong I can get remote terminal access from the proxmox interface along with rebooting and backing things up.

Also, you can actually run Grafana under HomeAssistant directly, though that does mean if HA is down then you also lose Grafana at the same time. IMO it is reasonable to use lots of stuff alongside HA but monitoring and remote access should be on a separate machine, and for that I have an old laptop (integrated battery so no need for UPS) and that machine is really only for managing remote access and monitoring.

This. I looked at a bunch of options and these are the best for OpenWrt and are very reasonably priced. Mine did torrenting, VPN, and a few other small services before I got my proper served up and running and now it is less loaded and more relaxed without that workload. Absolutely awesome, very high quality for low price, and it comes with a very slightly modified OpenWrt firmware which is unlocked by default.

Nice. I would recommend measuring the usage not from what the device reports but from actually measuring at the wall socket. The conversion is likely meaningfully under the 95% efficiency of some tools and that waste is felt as heat. If you convert to 24V from 120V you will have a significant amount of heat as waste which is unreported in home assistant. If you have the option to use a relay it can actually turn the thing all the way off, allowing almost zero usage when not on, but it can be a little slower to respond.

Very nice, I love the overall effect. Once you have motion sensing are you planning on local reaction or more of a persistence approach? Like a motion sensor and then a timer for turning off or once someone enters the room keeping them on until they leave the room?