Burst of air next to a mic. It was originally intended for a bullet hitting a ballistic vest, but it obviously can work for some kind of a pressure releasing sound too.
This was recorded with a blue yeti mic indoors on a mechanical keyboard with blue switches. It is the actual typing of words not just pounding on a keyboard. Feel free to use it in whatever you like.
Cicada sound, with a little of countryside ambience on the background. Recorded in santaella, córdoba, spain. It was very hot. Recorded with zoom h4n built in stereo mic.