We are currently building a house and we are on the market for some fairly simple home automation that I will control 100% without any blackbox from unknown vendor.
I am looking for information if maybe Domoticz will help me do what I want/need.
What I want to see and do:
1) 4 facade blinds (the ones that have blades that can be set at any angle to pass light) with Somfy motor (no somfy.io) - I want to be able to set the position and the angle of the blades by hand (from phone and maybe a wall mounted device) and have possibility to automate it;
2) 10 regular facade blinds with Somfy motor (no somfy.io) - set position of the blind by hand (from phone and maybe a wall mounted device) and possibility to automate it;
3) garage door with Somfy Metro (no somfy.io) - posibility to open garage door based on proximity, from phone and remote controll;
4) Panasonic heat pump (generation J) - see statistics and alerts;
5) recuperator Zender ComfoAir Q basic - set power output from phone;
6) aircon LG AC12BQ (only 2/3 unis, not per room) - disable, enable from phone, set temperature, posibility to automate;
7) solar panels power inverter - see statistics and alerts;
8) lights - trun on/off from phone, wall mounted switches, master switch i master bedroom ti disable all ligths;
9) set temperature in rooms - this is a tricky one. The company that will make our heat/solar/recuperator installations wants to add a device in each room to gather temperature and steer the heat pump (Salus VS35W probably) but my understanding is that it will only talk to the heat pump and there is no chance to have it on phone. I am looking for a better solution, one that will steer both heat pump but also air-con and possibly blinds. I do like the idea to have a wall mouted device for quick access but I do not want to have separate for all devices. Am I asking too much here?

Are those things doable? Am I in the right place?

I am looking at Domoticz (and OpenHab) because I would like to do it myself (I am new to this but I am a technical person so I wanted to try it) and I do not want any communication via 3rd party. I plan to have it air-gapped and will add Internet access only when I feel like it.
Thanks!