Wikimedia Hackathon 2020/Remote Hackathon/Instructional videos

Since this Wikimedia hackathon unconference is only virtual you are invited to post here (short) educational videos that explain (generally in less than 5 minutes time) how to perform a certain activity or technique.

Some hints

Whenever you give a short demo, record the session (it is possible with Google Hanghouts, Jitsi, and other popular webinar tools).
Ask permission from the participants to do so; participants with the microphone muted are normally not depicted.
They can disable their camera, so they are sure no live video is recorded from them
Or they can prefer not to participate, so even their name is not shown (they can see the video afterwards, offline)
You can record a session where you are the single participant -> this allows you to record in all tranquillity, without stress.
You can prepare a script with text to tell, and the demo steps to perform.
When you have multiple screens you can put the recording session and your session script at the left screen; your demo session being on the main desktop on the right. Then you can record the main screen.
To create the initial TimedText subtitles, you can reuse your session text (translate with DeepL).
Try to subtitle them in your own language with TimedText. To get the timing, just copy /paste an existing language.
A video, once recorded, can be seen again, offline, by thousands of peers looking for how to apply the same techniques.