Document how to combine video files via ffmpeg

To easily enable for debugging purposes.

home/packages.nix

@@ -74,6 +74,7 @@ with pkgs; [
   # Change recording from output to monitor: https://askubuntu.com/questions/682144/capturing-only-desktop-audio-with-ffmpeg/682793#682793
   # Split large file into chunks (https://unix.stackexchange.com/questions/1670/how-can-i-use-ffmpeg-to-split-mpeg-video-into-10-minute-chunks):
   # ffmpeg -i output.mp3 -c copy -map 0 -segment_time 00:15:00 -f segment output%03d.mp3
+  # Combine multiple files: https://trac.ffmpeg.org/wiki/Concatenate
   # Record audio and video on ubuntu: ffmpeg -f pulse -i alsa_output.pci-0000_00_1f.3.analog-stereo.monitor -f x11grab -y -framerate 30 -s 1280x720 -i :0.0 -c:v libx264 -preset superfast -crf 18 output.mkv
   # Find list of audio on ubuntu: pactl list | grep -A2 'Source #' | grep 'Name: '
 

home/programs/neovim/configuration/after/ftplugin/nix.vim

@@ -1 +1,2 @@
+setlocal commentstring=#\ %s
 " set completefunc=LanguageClient#complete

home/windowManager/i3.nix

@@ -367,6 +367,9 @@ in {
         # To turn off, use position, e.g.:
         # xrandr --output DP1 --right-of ${displayBuiltInOutput}
 
+        # Hikari present
+        # xrandr --output eDP-1 --same-as HDMI-1 --scale 1.5x1.5 --output HDMI-1 --mode 1920x1080
+
         # back to normal: Enter or Escape
         "Return" = "mode default";
         "Escape" = "mode default";

systems/hikari/web-development/default.nix

@@ -102,8 +102,11 @@ in {
             general_log = true;
             general_log_file = "/var/lib/mysql/query.log";
 
+            # slow_query_log = true;
+            # slow_query_log_file = "/var/lib/mysql/slow_query.log";
+            # long_query_time = 1;
+
             bind-address = "127.0.0.1";
-            # = "/var/log/mysql/query.log";
           };
         };
       };