I am also a teacher and I use this wonderful program in lectures and in practical classes with students. A few years ago I was looking for a free digital circuit simulator and found this program. The first acquaintance with the program was unsuccessful, since there were very few models of digital chips in the program, and I was not interested in microcontrollers. About a year later, the second acquaintance with the program took place. I found that you can add models of digital chips to it yourself. This interested me very much and I started adding them to the program and sharing them with all users. Now there are quite a lot of models in the program and I have the opportunity to conduct full-fledged lessons with a demonstration of fairly complex digital circuits. Also, together with students, I study programming of AVR microcontrollers (ATmega328) in assembler and Arduino. I believe that the program's capabilities are sufficient to study the basics of digital technology, programming microcontrollers, and partial study of analog electronics and electrical engineering. I really hope for the further development of the program.