Very own software for WILL writing

There are some companies who offer software for will writing but they are usually only for England and Wales jurisdiction, not Scotland. I would like to have my own software to operate on, have the option to rent the software to Solicitors, have the app for clients who can put their details and produce the Will themselves.
Example software provide but only for England and Wales https://arken.legal/uk
https://willsuite.co.uk
Will writing apps?
Write A Will Online
Rocket Lawyer. ...
LegalZoom. ...
Do Your Own Will. ...
Quicken WillMaker Plus. ...
Will Creator Deluxe.