doom emacs
>share calendar/todo
There is org-caldav that you can point to an org file and it syncs with a caldav server. This way you can have two-way sync from e.g. a phone's calendar to your org file.
Oh, so it allows you to have source blocks in different languages where you can pass data between one another? I am highly skeptical it's possible in that fork at all.
1. Export a .ics file based on your agenda (support for this is built-in) to a shared folder to which your spouse has access (syncthing/dropbox/whatever). Your spouse would then use their calendar app to subscribe to the ics file. When you push changes to the ics file, they would automatically propagate on the calendar.
2. Use built-in org html export features to generate a simple page showing your schedule and either host it on your local network or put it in a shared directory as described above.
edit: sibling comment has a better suggestion (org-caldav)
Well integrated with vim keys, batteries-included conf. Maybe I'm just not ready for Doom Emacs yet, but this is what works for me.