Imagine taking a beloved classic fantasy series and handing the material off to the CW for adaptation and you’ve got the gist of Amazon’s WoT series. It’s pretty, it’s vapid and there’s a whole pile of extra teenage soap opera drama thrown into season 1 for no real reason.
Start by playing with subvolumes and snapshots so you can get a feel for how they work. Once you’ve got that down you can break down your root filesystem into sensible subvolume chunks (/, /home, /var/log, /var/cache etc) so that you only snapshot relevant content during each update. I wrote a btrbk config at that point, tested it a few times and then wrote a pacman hook to fire it on install, update or package remove events and went from there.
Here’s what I use to take snapshots - you’ll need to write an appropriate btrbk config file for your subvolume layout but it’s otherwise feature complete. gitlab.com/arglebargle-arch/btrbk-autosnap
Like I mentioned above, I haven’t actually needed to roll the system back in ages but I get a lot of mileage out of being able to reach back in time and grab old versions of files for comparison.
Time shift is a lot easier if you’re just starting out but it also requires a specific subvolume structure and isn’t very flexible.
Edit: pro tip: don’t make /var a separate subvolume from /, it’s way, way, way too easy to roll one or the other (/ or /var) back without the other. If you do that by accident pacman’s state becomes out of sync with the running system and everything breaks. Stick to splitting frequently rewritten data like /var/cache and /var/log off, leave /var itself in the root subvolume.
When I started using Arch I just set it up on a btrfs filesystem and wrote a simple btrbk hook to take a snapshot before any package updates. That made it trivial to unfuck anything that broke after an update. I can’t remember the last time I had to roll the system back but it’s nice for peace of mind.
Google Image search: Can I interest you in some results from Pinterest? No? How about all of the results from Pinterest?
Edit: actually helpful comment: I usually use tin eye, it does a pretty good job of digging up original sources for images. Apparently Bing image search is really good for porn, so I’m told anyway.