Add post Hosting Jekyll websites on NixOS

Remove aliurl project, add rinth

Signed-off-by: Ivan Bushchik <ivabus@ivabus.dev>

_posts/2024-02-03-hosting-jekyll-on-nixos.md

@@ -0,0 +1,84 @@
+---
+layout: post
+summary: "This post is hosted on NixOS"
+title: "Hosting Jekyll websites on NixOS"
+toc: true
+---
+
+## Preamble
+
+Previously this website (ivabus.dev) was hosted on Cloudflare Pages, but recently I learned about NixOS and wanted to host my site "declarative" way.
+
+## The way
+
+### Step 1: Package website
+
+To host website correct way, we want to have its Nix derivation. Before we create one, we have to have `gemset.nix`. To generate one, run this in the root of your Jekyll project
+
+```shell
+nix-shell -p bundler -p bundix --run 'bundler update; bundler lock; bundler package --no-install --path vendor; bundix; rm -rf vendor'
+```
+
+Note: make sure to remove all the platform-specific gems from `Gemfile` and `Gemfile.lock`, like `google-protobuf`, so your website could be built 
+
+Then you need to create a package for your website with code like this
+
+```nix
+{ pkgs ? import <nixpkgs> { }, bundlerEnv ? pkgs.bundlerEnv, ... }:
+let
+  version = "commit hash";
+  repo = builtins.fetchGit {
+    url = "https://address/of/git/repo";
+    rev = version;
+  };
+
+  gems = bundlerEnv {
+    name = "your-site";
+    ruby = pkgs.ruby;
+    gemdir = "${repo}/.";
+  };
+in pkgs.stdenv.mkDerivation {
+  inherit version;
+  name = "your-site";
+  src = repo;
+
+  buildInputs = with pkgs; [
+    gems
+    # nokogiri dependencies
+    zlib
+    libiconv
+    libxml2
+    libxslt
+    # jekyll wants a JS runtime
+    nodejs-slim
+  ];
+
+  buildPhase = ''
+    bundle exec jekyll build 
+  '';
+
+  installPhase = ''
+    mkdir -p $out
+    cp -r _site/* $out/
+  '';
+}
+
+```
+
+### Step 2: Prepare nginx
+
+```nix
+services.nginx = {
+  enable = true;
+  virtualHosts."your.site" = {
+    root = pkgs.callPackage ./path/to/pkg.nix { };
+    extraConfig = ''
+      error_page 404 /404.html;
+    '';
+  };
+}
+```
+
+### Step 3: Rebuild
+
+Rebuild your system and try to visit your website (don't forget to open 80 (and 443, if HTTPS is enabled) ports in the firewall, if needed)

_projects/006-aliurl.md

@@ -1,14 +0,0 @@
----
-layout: project
-title: "aliurl & urouter"
-description: "Aliasers for URLs"
-participant: false
----
-
-[aliurl](https://github.com/ivabus/aliurl) is "dynamic" URL "aliaser" (router), that could be managed via POST requests.
-
-[urouter](https://github.com/ivabus/urouter) is "static" URL router, that reads route list in compile-time.
-
-Both of them are built on top of [Rocket.rs](https://rocket.rs) framework.
-
-Aliurl powers [ивабус.рф](https://ивабус.рф) and urouter powers [iva.bz](https://iva.bz)

_projects/006-urouter.md

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+---
+layout: project
+title: "urouter"
+description: "Aliaser for URLs"
+project-url: "https://github.com/ivabus/urouter"
+participant: false
+---
+
+[urouter](https://github.com/ivabus/urouter) is "static" URL router, that reads route list at from file once.
+
+urouter is built on top of the [Rocket.rs](https://rocket.rs) framework.
+
+urouter powers [iva.bz](https://iva.bz)

_projects/007-rinth.md

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+---
+layout: project
+title: "Rinth"
+description: "FM and SSG synthesizer"
+participant: false
+project-url: "https://github.com/ivabus/rinth"
+---
+
+Rinth is work in progress FM and SSG synthesizer.
+
+First alpha release [is available](https://github.com/ivabus/rinth/releases/tag/0.0.1) on GitHub.