OpenSMTPD VS fish-shell

Any MTA will do, including OpenSMTPD, Postifix, Exim, Sendmail, qmail.

OpenSMTPD

opensmtpd Like: Reasonable sized, reasonably easy to configure Dislike: Easy to shoot yourself in the foot, DKIM setup is a p.i.t.a.

Sounds like OpenSMTPd https://www.opensmtpd.org/ in that its a rewrite of older confusing SMTP servers.

Any constructive suggestions about what beginners should refer to? Is there anything better than the FAQ? (And, any thoughts about a guide for smtpd? I know this is a rather different question, but I'd love to find something beyond just the manual pages at www.opensmtpd.org, )

OpenSMTPD\ (3 comments)

Reminds of the note at the bottom of Fish's releases. It's there because the build system cannot determine the current version for some reason. Hopefully that will go away now that they have switched to a different language / build system. The custom tarball is used by Arch Linux at the very least.

https://github.com/fish-shell/fish-shell/releases/tag/3.7.1

https://github.com/fish-shell/fish-shell/issues/7772#issueco...

https://gitlab.archlinux.org/archlinux/packaging/packages/fi...

A recent practical example of the former: the fish shell re-wrote incrementally from C++ to Rust, and is almost finished https://github.com/fish-shell/fish-shell/discussions/10123

An example of the latter: c2rust, which is a work in progress but is very impressive https://github.com/immunant/c2rust

It currently translates into unsafe Rust, but the strategy is to separate the "compile C to unsafe Rust" steps and the "compile unsafe Rust to safe Rust" steps. As I see it, as it makes the overall task simpler, allows for more user freedom, and makes the latter potentially useful even for non-transpiled code. https://immunant.com/blog/2023/03/lifting/

And this discussion from November has an update on the progress: https://github.com/fish-shell/fish-shell/discussions/10123

We're using bash as our terminal shell for now (it is standard in many distros) but it is not the only one out there. If you want to test out zsh, fish or oh-my-zsh, you will see that there are a few differences and the features are usually the main differentiator. Try that, poke around.

They have a variety of reasons to move to rust, as outlined in their original rust discussion[1]. Mostly around finding other contributors, and adding an async/parallel mode they're comfortable with.

[1] https://github.com/fish-shell/fish-shell/pull/9512