diff --git a/bin/prepend b/bin/prepend
new file mode 100755
index 0000000..41d42e6
--- /dev/null
+++ b/bin/prepend
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+while read line; do echo "${1}${line}"; done;
diff --git a/config/xsession/zsh/zsh.nix b/config/xsession/zsh/zsh.nix
index 0f4a9da..6c92d44 100644
--- a/config/xsession/zsh/zsh.nix
+++ b/config/xsession/zsh/zsh.nix
@@ -72,7 +72,7 @@
 
   home.packages = [
     pkgs.nerdfonts
-    pkgs.ntfy
+    #pkgs.ntfy
   ];
 
 }
diff --git a/home.nix b/home.nix
index 37171fd..a39bffb 100644
--- a/home.nix
+++ b/home.nix
@@ -19,7 +19,7 @@
     nixops
     ldns
 
-    danstable.mangohud
+#    danstable.mangohud
 
     unstable.steam
     dolphinEmuMaster
diff --git a/overlays/ffmpeg.nix b/overlays/ffmpeg.nix
new file mode 100644
index 0000000..115ac6f
--- /dev/null
+++ b/overlays/ffmpeg.nix
@@ -0,0 +1,53 @@
+self: super:
+{
+  ffmpeggit = super.ffmpeg-full.overrideAttrs (old: rec {
+    version = "4.2.2";
+    src = super.fetchurl {
+      url = "http://www.ffmpeg.org/releases/ffmpeg-snapshot-git.tar.bz2";
+      sha256 = "1lj7spgmv2kqiz25dpy2gzbciqdsm7j3q1s1j4csnal5jyq6a28m";
+    };
+    configureFlags = [
+      "--enable-gpl"
+      "--enable-version3"
+      "--enable-static"
+      "--disable-debug"
+      "--disable-ffplay"
+      "--disable-indev=sndio"
+      "--disable-outdev=sndio"
+      "--cc=gcc"
+      "--enable-fontconfig"
+      "--enable-frei0r"
+      "--enable-gnutls"
+      "--enable-gmp"
+      "--enable-libgme"
+      "--enable-gray"
+      "--enable-libaom"
+      "--enable-libfribidi"
+      "--enable-libass"
+      "--enable-libvmaf"
+      "--enable-libfreetype"
+      "--enable-libmp3lame"
+      "--enable-libopencore-amrnb"
+      "--enable-libopencore-amrwb"
+      "--enable-libopenjpeg"
+      "--enable-libsoxr"
+      "--enable-libspeex"
+      "--enable-libvorbis"
+      "--enable-libopus"
+      "--enable-libtheora"
+      "--enable-libvidstab"
+      "--enable-libvo-amrwbenc"
+      "--enable-libvpx"
+      "--enable-libwebp"
+      "--enable-libx264"
+      "--enable-libx265"
+      "--enable-libdav1d"
+      "--enable-libxvid"
+    ];
+    patches = [];
+  });
+  myffmpeg = self.ffmpeggit.override (OldAttr: {
+    libaom = self.mylibaom;
+  });
+
+}