diff --git a/nix/sources.json b/nix/sources.json
index 56d48cae..70bb2814 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -11,6 +11,12 @@
         "url": "https://github.com/srid/emanote/archive/584d52c4c7071e643ce738db9db0196f17071518.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
+    "mastodon_digest": {
+        "branch": "main",
+        "repo": "git@hera.m-0.eu:mastodon_digest",
+        "rev": "abea31381316d762d3c8eecc6f732eb6620e259e",
+        "type": "git"
+    },
     "hexa-nur-packages": {
         "branch": "master",
         "description": "My personal NUR repository: [maintainer=@mweinelt] ",
diff --git a/nixos/machines/hera/cloud.nix b/nixos/machines/hera/cloud.nix
index de23c2b0..757bf2d7 100644
--- a/nixos/machines/hera/cloud.nix
+++ b/nixos/machines/hera/cloud.nix
@@ -131,6 +131,17 @@ in {
           serviceConfig.ExecStart = "${pkgs.python3}/bin/python -m http.server --bind ${hosts.vpn.hera} 8842 -d /var/www/rss";
           wantedBy = ["multi-user.target"];
         };
+        mastodon-digest = {
+          script = ''
+            ln -fs ${pkgs.privatePath "mastodon-env"} .env
+            now=$(date "+%Y-%m-%d")
+            mkdir -p /var/www/rss/mastodon/$now-highlights
+            mkdir -p /var/www/rss/mastodon/$now-all
+            ${pkgs.mastodon_digest}/bin/mastodon_digest -o /var/www/rss/mastodon/$now-highlights -n 24 -t lax --theme light
+            ${pkgs.mastodon_digest}/bin/mastodon_digest -o /var/www/rss/mastodon/$now-all -n 24 -t all --theme light -f list:3811
+          '';
+          startAt = "19:59";
+        };
       }
       // nextcloudServices mainHostName;
   };
diff --git a/overlays/10-previews.nix b/overlays/10-previews.nix
index abd9346c..67275a97 100644
--- a/overlays/10-previews.nix
+++ b/overlays/10-previews.nix
@@ -1,9 +1,7 @@
 self: super: let
   unstable = import super.sources.nixos-unstable {};
-  bot_commit = (builtins.fromJSON (builtins.readFile ../nix/sources.json)).nixpkgs-bot.rev;
-  nom_commit = (builtins.fromJSON (builtins.readFile ../nix/sources.json)).nix-output-monitor.rev;
-  nom = builtins.getFlake "git+ssh://git@hera.m-0.eu/nix-output-monitor?rev=${nom_commit}&ref=main";
-  bot = builtins.getFlake "git+ssh://git@hera.m-0.eu/nixpkgs-bot?rev=${bot_commit}&ref=main";
+  sources = builtins.fromJSON (builtins.readFile ../nix/sources.json);
+  myFlake = name: (builtins.getFlake "git+ssh://git@hera.m-0.eu/${name}?rev=${sources.${name}.rev}&ref=main").packages.x86_64-linux;
 in {
   inherit unstable;
   unstableHaskellPackages = unstable.haskellPackages;
@@ -17,6 +15,7 @@ in {
     emanote
     helix
     ;
-  nixpkgs-bot = bot.packages.x86_64-linux.default;
-  nix-output-monitor = nom.packages.x86_64-linux.default;
+  nixpkgs-bot = (myFlake "nixpkgs-bot").default;
+  nix-output-monitor = (myFlake "nix-output-monitor").default;
+  inherit (myFlake "mastodon_digest") mastodon_digest;
 }