Steps 1, 2, 4, 5 and 7 just need some time. I have the stuff pretty much thought out and it’s just a matter of actually doing the things. I was sick majority of November, but if it wasn’t for that those would have already been completed. The rest need either planning or money. Immich setup would ideally need 2x2TB ssd drives (on raid1 setup) but that’s about 500€ out of the pocket and home assistant setup needs time to actually work with it and to plan things forward. Additionally HA setup could use a floor thermostat or two, some homeESP gadgets and so on, so it needs some money as well.
Majority of the stuff should be taken care of until February, the rest is more or less open.
Jolla had similar concept too at 2013. I had one and back then it was really, really nice phone. Maybe not in a sense that flagship models from big vendors were, but I really enjoyed the UI and modular options was a huge selling point at least for myself. Then they started to work with a tablet which failed on pretty much all fronts and the whole company practically disappeared.