@sumudu
I heard about the sync issues, but they rarely seem to affect me, because once I've put something in a D1 instance on either of the platforms, that's that for me. It's more an exercise in freeing up my mental space (and getting reminded of things through the On This Day feature).
Applets that work well with D1 for me - save my liked and posted tweets in D1, save my own blog posts in D1 as a backup and as a discovering what I wrote a few years ago mechanism. When the car monitoring company Automatic was a thing (pandemic killed them), I would get metrics about my car into a D1 diary I kept for it. Other people use the Instagram applet to get their photo posts to D1, or to their wp blogs, or to twitter. D1's own Instagram connector works better, though…
Oh, and the whole writing into D1 using telegram happens through D1…
// @matigo