Add wiki-js recipe

source/guides/recipes/index.md

@@ -8,4 +8,5 @@ sharing-dependencies.md
 Automatic environments <direnv>
 dependency-management.md
 Python development environment <./python-environment.md>
+Setup Wiki-JS on NixOS <./wiki-js.md>
 ```

source/guides/recipes/wiki-js.md

@@ -0,0 +1,52 @@
+(setup-wiki-js)=
+# Setup wiki.js
+
+[Wiki.js](https://js.wiki/) is a modern, open-source wiki engine running on Node.js and written in JavaScript. It offers a sleek and user-friendly platform for managing and sharing knowledge.
+
+To quickly set up an instance of Wiki.js on your local NixOS machine, a database service is required, and optionally a reverse proxy for HTTPS URLs.
+
+Below is a streamlined and ready-to-use recipe to spawn this service on your server:
+
+```nix
+{ pkgs
+, config
+, ...
+}:
+
+{
+  services.postgresql = {
+    enable = true;
+    ensureDatabases = [ "wikijs" ];
+    authentication = pkgs.lib.mkOverride 10 ''
+      #type database  DBuser  auth-method
+      local all       all     trust
+    '';
+    ensureUsers = [
+      {
+        name = "wikijs";
+        ensureDBOwnership = true;
+      }
+    ];
+  };
+
+  services.wiki-js = {
+    enable = true;
+    settings = {
+      bindIp = "127.0.0.1";
+      port = 3000;
+
+      db = {
+        db   = "wikijs";
+        user = "wikijs";
+        host = "/run/postgresql";
+      };
+    };
+  };
+
+  # Replace `wiki.router.lan` with your own domain name
+  services.caddy.virtualHosts."wiki.router.lan".extraConfig = ''
+    tls internal
+    reverse_proxy http://127.0.0.1:3000
+  '';
+}
+```