I am wondering what the standard tool is for sending and receiving SMS and MMS on a device that does not have a SIM card in it.
Is there some tool that can do it natively? Is there a specific carrier that is commonly used for this? Is there some sort of selfhosted service that bridges it to email, and if so do I need to put a SIM card in my server?
Bonus points if I can do it within Emacs.
No, but there are key steps in the installation process that are different. Guiscrcpy uses a binary blob, I’m unsure on how safe it is. Meanwhile, kdeconnect is open source and has many interesting features of their own. (Sending links to open a website between devices, using it in combination with openvpn, and so on…)