you do most generating and adding of the subscription link on the web frontends, those will back-sync to the device but can require handholding
- create murena subscription link (see screenshot) on web → add in google calendar web (will sync to device, solution to this not in this thread)
- create google subscription link (see screenshot) on web → add in murena calendar web upper left behind + (plus) “new subscription from link” → offered on device in Settings → Account → murena → more Settings → webcal tab
an alternative in 1. is the Google counterpart install icsx5 and subscribes to the subscription link from the device and not google calendar web, there’s up and downsides. Up: controls when it is crawled. Down: if multiple devices use the Google account, you’d need to install icsx5 device-by-device