Overview:
a) create screen with :
field to type IP interface WG
- how get latest one to add + 1c? where is stored?
- OneWord name to identify cliente
b) validate IP typed (do not exist, valid, inside WG interface range)
c) Use template file and replace data from step A to generate config-IP.file
d) convert config-IP.file to QRCODE
(verify how https://www.wireguardconfig.com/qrcode do it on client side)
e) save/show config-IP.file e show QRCODE on screen
f) (MAYBE) sent QRCODE by e-mail (if so... request it on step A)