Hi @StigtriX not sure what you mean by non-specific version but if it means the MiA1 /e/ ROM which is available on the site then that will not work for your device. As you may be aware you can even end up bricking your device by using a different ROM from the one built for your device.
Since you have already added your device suggestions to the list please wait for the device ROM to be built and shared on the /e/ site here