We use Y-Cam
I think our upload speed of 0.7Mbps wouldn't reliably support one Y-cam transferring to the cloud, let alone 3 or 4 of them.
Local hard drive/NAS is probably the way to go, with remote viewing if required.
@user69121 started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
We use Y-Cam