Finishing Firefox oxidation[1] should become a priority too. Also, combining all separate modern alternatives[2] to coreutils and such in Rust, like exa, dust, etc into one umbrella project.
Your existing bash scripts don't work in an alternate universe where computers come with ripgrep not grep, but that universe isn't very different otherwise. Some things are a little easier to do, some things are a little harder to do, there are different bugs than in our universe, but it's way less strange than a universe where Lisp Machines still dominate, or even one where the Network uses X.25 rather than IP.