You could use the Steam link app on your phone and basically any Bluetooth controller.

Got a bidet as a joke gift for Christmas a few years ago, it has been an absolute game changer. Hate pooping anywhere but home now, I actually feel clean, and use much less toilet paper.

CS2 Feature Highlights
CS2 Dev Highlights

They have videos on the road building tools, and from what we have seen so far road building will be much better than CS1.

@selfhosted may be a good place to ask. Can run your own “cloud” photo backup on a computer so photos taken on phones can automatically be saved. Would also recommend a second drive at friend/family house so you can back-up off-site to follow the 3-2-1 rule (3 copies, 2 different types of storage, 1 offsite) for backups. For even better redundancy for drive failures you could run a NAS running multiple drives in RAID. Basically, RAID combines multiple physical drives into a single “logical” drive with different speed, capacity, and redundancy capability and the NAS allows you to access that over your local network or internet.