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Rust Port for Fish Shell is Almost Ready for a Beta Release
(news.itsfoss.com)
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this post was submitted on 30 Jul 2024
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There is nothing specific in the rust port that makes fish more available for servers or LTS distros.
Before, you would have had to get a C++11 compiler (which used to be a bit of a PITA until 2020 or so), now you need to get rust 1.70 (which isn't terrible given rustup exists).
I see they're taking it from this comment, which says
Which is something that fish has always done - you can go to https://fishshell.com/ and get packages for Ubuntu, Debian, OpenSUSE and CentOS - all server distros, and these packages are built by the fish developers, not the distros.
That quote comes from the "Setting The Stage" section of the comment, which describes the status quo. This is about explaining what fish does and needs from a new language, not about something that fish wants to achieve by switching the language.
Being written in Rust does improve availability, because by default Rust statically links against everything except libc, and you can opt out of that if necessary. So there is inherently no need to build separate dependency packages for each distro, unless you use a Rust crate that specifically links to a C or C++ library.
It actually statically links the Rust standard library too. You can also avoid glibc by using musl with a one line change.
Oh, right, yes; of course it statically links the standard library. I was thinking of the fact that the standard lib is precompiled, but yes, it's statically linked.