I’v just added my Session ID to my contact details at the side of the page. Hovering over the green S logo will display a QR code which can be scanned from within the Session messenger app to add me.

Session is a VERY secure and private end to ended encrypted messenger. Based on signal but without a reliance on ANY personal data, including telephone number. It also doesn’t collect any data!

Session is available for mobile or desktop and more information can be found on their site: https://getsession.org

I may be encouraging those that I convinced to join my xmpp server that this might be a better option..