users/foo-dogsquared/programs/custom-homepage: init

YOOOOOOOOO! This is cool, a Nix-configurable homepage (made with Hugo)
by taking advantage of the way how data are merged within the virtual
filesystem, hell yeah.

Aaaaaand... its novelty wears off a minute later in my setup because
Tridactyl needs to override the tab. :/

configs/home-manager/foo-dogsquared/modules/default.nix

@@ -11,6 +11,7 @@
     ./programs/jujutsu.nix
     ./programs/keys.nix
     ./programs/nixvim
+    ./programs/custom-homepage.nix
     ./programs/research.nix
     ./programs/shell.nix
     ./programs/terminal-multiplexer.nix

configs/home-manager/foo-dogsquared/modules/programs/custom-homepage.nix

@@ -0,0 +1,70 @@
+{ config, lib, pkgs, ... }:
+
+let
+  userCfg = config.users.foo-dogsquared;
+  cfg = userCfg.programs.custom-homepage;
+
+  settingsFormat = pkgs.formats.toml { };
+in
+{
+  options.users.foo-dogsquared.programs.custom-homepage = {
+    enable = lib.mkEnableOption "addition of custom homepage";
+
+    sections = lib.mkOption {
+      type = with lib.types; attrsOf settingsFormat.type;
+      description = ''
+        List of additional sections with their settings to be configured
+        alongside the hardcoded sections.
+      '';
+      default = { };
+      example = lib.literalExpression ''
+        {
+          services = {
+            name = "Local services";
+            flavorText = "for the local productivity";
+            textOnly = true;
+
+            links = lib.singleton {
+              url = "localhost:''${builtins.toString config.services.mopidy.settings.port}";
+              text = "Music streaming server";
+            };
+          };
+        }
+      '';
+    };
+
+    package = lib.mkOption {
+      type = lib.types.package;
+      description = ''
+        The package derivation of the website.
+      '';
+      default = pkgs.callPackage ../../files/homepage/package.nix { };
+    };
+
+    finalPackage = lib.mkOption {
+      type = lib.types.package;
+      description = ''
+        Output derivation containing the website with all of its modifications.
+      '';
+      readOnly = true;
+    };
+  };
+
+  config = {
+    users.foo-dogsquared.programs.custom-homepage.finalPackage =
+      let
+        data = lib.mapAttrs (n: v:
+          settingsFormat.generate "fds-homepage-section-${n}" v) cfg.sections;
+
+        installDataDir = lib.foldlAttrs (acc: n: v: ''
+          ${acc}
+          install -Dm0644 ${v} './data/foodogsquared-homepage/links/${n}.toml'
+        '') "" data;
+      in
+      cfg.package.overrideAttrs (prevAttrs: {
+        preBuild = (prevAttrs.preBuild or "") + ''
+          ${installDataDir}
+        '';
+      });
+  };
+}