IMO, Eufy should be concentrating their software development dollars first fixing the security ecosystem of their currently available products, even if that means moving some add-on features further back of the line (IFTTT, USB port memory expansion etc…).
IMO, software priorities should be:
#1 making ALL their products HomeBase compatible. Like the wired doorbell and all the indoor cameras. Currently their Eufy Alarm kit only supports homebase products and a single homebase at that. So completing that circle should be #1 priority as it also generates new sales (cause increased sales and profits is very important while you are spending money developing and fixing issues)
#2 - adding the quick ability to arm the whole Eufy security system that consists of multiple homebases (in other words adding a top icon line on the main screen, like in the Ring app, with Away/Home/Custom icons and a settings icon that allows for a Master/Slave designation of multiple homebases. That will allow the Master Homebase to arm automatically also the slave hombases - this is actually going to be the easiest to do software wise and has the payoff that makes the Eufy alarm kit actually useable (as currently the keypad can only arm or disarm a single homebase). Also adding a master/slave ability could in fact help solve the memory expansion by giving you 16Gb+16Gb+16Gb by spreading your cameras to multiple homebases (let’s not forget that the battery doorbell comes with a homebase for only $20 extra, all the camera kits come with a homebase, and the alarm kit comes also with a homebase; so you have 3 homebases with the purchase of those 3 kits. So doing these changes makes the multiple homebases a great USABLE addition to the security system and means more sales for Eufy).
#3 - Currently the Google hub/Alexa integration is non-existent and the video streaming that currently exists has an unusable delay of 20sec. They should instead concentrate on adding FAST audio-only interactivity that makes the system voice enabled beyond the “show me <the non-real time 20sec delayed> doorbell”. And a good Google Home integration kills 2 birds with one stone. Google Home already has good integration with IFTTT, so good Google Home integration means good Eufy IFTTT ability without having to write a single line of code.