A feature to in and export projects and chips would be nice to share them with friends or use chips in other projects. Can you please add something like that?
You can find your projects on this path : C:\Users\user\AppData\LocalLow\SebastianLague\Digital Logic Sim\V1\Projects for now (if you're on windows).
If you want to send files to your friends I recommend sending the folder containing your whole project because there's many files needed for any one chip to work properly.