Azimuth

Azimuth is a metroidvania game, and something of an homage to the previous greats of the genre (Super Metroid in particular). You will need to pilot your ship, explore the inside of the planet, fight enemies, overcome obstacles, and uncover the storyline piece by piece. Azimuth features a huge game world to explore, lots of little puzzles to solve, dozens of weapons and upgrades to find and use, and a wide variety of enemies and bosses to tangle with.

It is open source and available for Windows, macOS, and Linux.

Check out this book: https://en.m.wikipedia.org/wiki/The_Knowledge:_How_to_Rebuild_Our_World_from_Scratch. It analyses that precise question in the first chapter. The author argues that even though Wikipedia is probably the closest thing there is, there is a clear lack of practical knowledge that will be essential in the situation that you are describing. Science progress heavily relies on industrial progress, and even if you know how to build something that doesn’t mean that you can do it, as there are other things that are required first.

Check out this page of the Arch wiki: https://wiki.archlinux.org/title/Downgrading_packages. The downgrade script in the last section works great. Endeavour OS is Arch-based and uses the same package manager, so it should work. This works only with packages from the official repositories, for AUR packages, you need to downgrade manually.

True, but I would say that nube (cloud) is more common.

I am definetly not an expert, but it does look like Chamomile to me. A good test to make sure is to squeeze the flower between your fingers while you smell it. Chamomile has a very characteristic smell, and should be easy to recognise.