In other words, your post may still be visible on, say, a linked Mastodon server, even if you decide to delete it with Threads.

“I think this is a downside of the protocol that we use today, but I think it’s important to let people know that if you post something and another server grabs a copy, we can’t necessarily enforce it,” Cottle says.

… it’s not a downside of the protocol, it’s just a literal impossibility. Once someone’s downloaded something, you can’t do a thing to take it back.

As did Pleroma and several other fedi servers — that’s not really innovation, it’s something simple that Mastodon devs deliberately avoided implementing.

The best I can think of would be tmux/screen with khal running in a pane beside todoman; sorry. :o

For calendar, I use khal, which offers a TUI (ikhal command) and a non-captive UI that can print a simple list like you might want (khal command). It supports multiple calendars, ical, recurring events, etc. Since it support ical, you can add locations, times, dates, alarms, pretty much anything you want. No database required, each event is saved into a seperate ical file (easy to import into another program, if you wanna switch someday).

I also use todoman for to-do lists, which is pretty similar to khal in terms of interface — having both a captive TUI and a non-captive UI.

I realize this doesn’t interest you, but as a side-note: Both of these use portable file-formats that can be synced with any pretty much any calendar-syncing service using vdirsyncer, which I use to sync my events and todo-lists and address book using Posteo.

Better yet, check out NewPipe on F-Droid. :^)

It’ll try to render it, even if just as markup (like if you try using and Latex markup for math).

The federation with Mastodon is mostly one-way: We can’t see or comment on Mastodon posts, but Mastodon users can see and comment on Lemmy posts.

Mastodon’s like Twitter… its posts wouldn’t fit in the Lemmy UI well. Though I hear kbin works well with both Mastodon-style and Lemmy-style posts.