I agree with this comment. As mentioned as answer in the post, to have a backup of these things is a big reason why I chose to selfhost. I had to switch devices (and operating systems) too many times. Moving data around everytime would be a hassle. To have all the important stuff not only stored but also organized and easy to access is very convenient and makes me stop worrying to accidentially lose my phone for example.

What are you using to download them as Markdown?

Not more but I would say it offers some additional options and integrations, because it’s api based. For example, on my server I connected it with ntfy.sh which executes the command to pull the update, for the apps’ docker container. (It’s working 90% of the time)

I used this for a while, aside from rss feeds: newreleases.io

Are you using a VPN to connect to your devices at home? I have a similar setup, when I’m away from home, I connect via Tailscale (a version Wireguard VPN) and keep all notes in sync.

In Joplin I use the WebDAV connection to store files on my server at home.