Recommend me a security system

We're renovating our house, and I've been gleefully removing the old alarm system cables.

I was originally planning to have a local alarm company install a system at the time of first fix, but then decided to have a look if there was something simpler to install from the likes of Ring etc.

I see Ring do have security systems with motion detectors and opening sensors which are wireless/ battery powered which seems great.

Would love to hear any recommendations for similar systems, and any tips from you all!