Self-Hosting on Cat in a Shell

Stalwart Mail Alias Creation Script

Fri, 03 Jul 2026 22:18:38 +0200

I just run: al <name for the alias> and get a new mail redirecting all mails to my main inbox.

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Why?

You might want to hide your mail from websites where you register, as they might sell your mail address (which is then used to profile or spam you), they might get hacked and you get tons of spam, or they just spam you right away. An alias mail can be easily disabled and tada, finished, no more wories, no more mails from that address (and the site you gave it to) without having to change your whole mailbox …

Setting Up My Own Mailserver (Stalwart)

Thu, 02 Jul 2026 15:19:27 +0200

TLDR; Me renting about mail, you can skip to Options, if you don’t wanna read it, because you already know

Mail usually totally sucks, you register somewhere for free, like gmail or whatever, and need to provide tons of personal data + have them scan your mails (not sure if they openly admit it tbh, but I believe they do even if claimed otherwise…). Mails are horrible for privacy … They are often unencrypted (except if you set up PGP and your communication partner also uses it, but almost no one except in the privacy corner does so …). There are some providers who don’t ask you for as much, like Proton. Still it sucks, you can’t easily move provider etc. Lets say they decide to charge everyone one day … Or change their privacy policy, or make some controversal tweets … and you want to distance yourself from them.

Secure a Caddy Server & Best Practices

Sun, 28 Jun 2026 11:14:58 +0200

I currently use Caddy for the statically generated Hugo Blog, since Caddy seems like a robust webserver written in go (so memory safe) and rather fast. Also it handles https automatically, requesting certificates etc. so no longer having to run anything manually. Also its pretty easy to configure for this use case

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Minimal Caddy Config

catinashell.de {
    root * /var/www/blog/public
    file_server
}

this is a pretty basic working example, you generate the content via hugo inside /var/www/blog, move ownership to caddy chown -R caddy:caddy /var/www/blog and done.