I want to use the Signal app personally. For this reason, I will install the Signal application on my own server.
1) Installing Signal app server / Android / IOS apps
2) Signal app uses twilio SMS by default. I only want access to the system from the database. Only people I designate should be able to login. Username / Password must be login
3) Finally, I want you to explain how you did all this! You should give it to me as a document or with a video
4) That is all! Server installation, Android application compilation, IOS application compilation, canceling the login with SMS (twilio) and activating the login with the username / password (using database), explaining all the operations to me with the document