@Inte sink is a framework for syncing data. uses kcalendercore and contacts. dist/sink.spec · master · PIM / Sink · GitLab
I started with: dist/kube.spec · master · PIM / Kube · GitLab
Having gone through all the spec files which kube depends on, it’s a project which might be suitable in the QT 5.15 context
Sadly , I failed (well, c++20 in 2 packages didn’t help) in creating packages for kaidan and realized that I’m not willing to invest the time. But, maybe it’s one for @rinigus who has the tooling https://forum.sailfishos.org/t/docker-based-build-environment-simulating-native-builds
Personally, I don’t use email on the phone much.