Hyde and Teepakki have a common mailing list where we inform about all our upcoming events.
You can join the mailing list here: https://list.ayy.fi/postorius/lists/teepakki-jas.list.ayy.fi/ (Fill in your e-mail address in and your name in “Your name” and press Subscribe. Other information such as password is not needed.)
After this you will receive an automatic confirm e-mail with a title “confirm <some text>”. Respond to this message by sending any text. After sending that reply you should get a confirmation message. Notice that for example Gmail routes this e-mail to the “Promotions” folder and some services might even route it to a spam folder.