Setup HomeAssistant with Google Assistant & Homekit/Homebridge Compatibility for both supported and unsupported devices on Synology Nas DS218+

Hey There, I wanted to step up my home automation at the moment. Most of my devices are homekit, Alexa or google compatible. I do have a RmPro3 infrared and RF remote which I'd like to integrate. As well as an IPCam (that also can control IR devices), a wifi bulb (other than the Philips Hue lights), some door/window sensors, a couple of smart plugs and a device called BOND that is an RF/IR remote compatible with Alexa/homekit, etc. I wanted to be able to control these devices with Homekit/Siri/Siri Shortcuts/Google Assistant, and maybe have homebridge installed if necessary as well. I have an always-on NAS by Synology ds218+ that I'd like to use for these cause its always on, but if a VPS is better then maybe I could figure something out. Please let me know if these things can be brought together and if we can set this up, even if its step by step so the entire house can be controlled, automated and set up in a way where I can have everything working either with Homekit & Google Assistant OR at least one of them.