I start off looking at the lifetime error that haunted me for much of the previous screencast.

$ cargo build
   Compiling matrix-bot-tester v0.1.0 (/vb/util/matrix-bot-tester)
error: lifetime may not live long enough
  --> src/main.rs:60:85
   |
60 |       client.add_event_handler(move |event: OriginalSyncRoomMessageEvent, room: Room| async  {
   |  ______________________________------------------------------------------------------_^
   | |                              |                                                    |
   | |                              |                                                    return type of closure `impl Future<Output = ()>` contains a lifetime `'2`
   | |                              lifetime `'1` represents this closure's body
61 | |
62 | |         if let Room::Joined(room) = room {
63 | |             if room.room_id() == dm_room_closure.room_id() {
...  |
71 | |         };
72 | |     });
   | |_____^ returning this value requires that `'1` must outlive `'2`
   |
   = note: closure implements `Fn`, so references to captured variables can't escape the closure

If I figure out a way around this by the end of the screencast I’ll be happy. It turns out I’m not happy.

The next day after the screencast, I sat down and played with it some more and finally was able to come up with a fix see the stackoverflow answer for more details.

As a side note, I’m trying something new. Rather than capturing my screen directly, I’m making a video of my screen using a web cam. The idea is to showcase some of the weird and unusual tech I use including the datahands keyboard and the DASUNG eink monitor.