I needed a base64 encoder for a web api. But in Thunkable X I did not find any component to suit my needs. Also sending username and passwords to an external API was too insecure for me. I found two
Base64 Encoding in Thunkable X
Bluetooth soldering station with Arduino
Building a soldering station is not that hard if you have a Arduino at hand. But I wanted my station to be small and to have something extra than just a temperature controller. This is how I come up with roroSOL,