diff --git a/nix/sources.json b/nix/sources.json
index 31693652..df54938e 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -23,6 +23,12 @@
         "rev": "2590f2dfa35b6a5a22993c5a79c50a8596febf5d",
         "type": "git"
     },
+    "nix-output-monitor": {
+        "ref": "master",
+        "repo": "git@hera.m-0.eu:nix-output-monitor",
+        "rev": "acb1030d1377356881c3d6debf9701f31ba03452",
+        "type": "git"
+    },
     "nixos-hardware": {
         "branch": "master",
         "description": "A collection of NixOS modules covering hardware quirks.",
diff --git a/overlays/nix-output-monitor/default.nix b/overlays/nix-output-monitor/default.nix
new file mode 100644
index 00000000..7ea689f1
--- /dev/null
+++ b/overlays/nix-output-monitor/default.nix
@@ -0,0 +1,5 @@
+final: prev:
+let master = import prev.sources.nixpkgs-master { };
+in {
+  nix-output-monitor = import prev.sources.nix-output-monitor { pkgs = final; };
+}
diff --git a/overlays/pkgSets.nix b/overlays/pkgSets.nix
index e1f1db8d..178fc0da 100644
--- a/overlays/pkgSets.nix
+++ b/overlays/pkgSets.nix
@@ -11,7 +11,7 @@ self: super: {
     inherit (self)
       git-crypt htop tree pwgen borgbackup inotifyTools direnv socat nmap ncdu
       tcpdump tmux tig exa fzf ag fd bat ripgrep ranger pass sshuttle vnstat
-      entr libargon2 mblaze niv compsize mediainfo asciinema gomuks;
+      entr libargon2 mblaze niv compsize mediainfo asciinema gomuks nix-output-monitor;
   };
 
   my-home-pkgs = {