diff --git a/bash_scripts/countdown_timer.sh b/bash_scripts/countdown_timer.sh
index 6f2e777..d6690d5 100755
--- a/bash_scripts/countdown_timer.sh
+++ b/bash_scripts/countdown_timer.sh
@@ -4,10 +4,11 @@ PLAYSOUND=true
 PLAYER=mpv
 FILE="/usr/share/sounds/freedesktop/stereo/message.oga"
 
-echo "Counting down from ${1}"
+seconds=${1:-180}
+echo "Counting down from $seconds"
 Msg=${2}
 
-let "i = ${1}"
+let "i = $seconds"
 while [ $i -gt 0 ]; do
 	echo $i
 	let i--
diff --git a/gdb/.gdbinit.d/gdbdashbard.conf b/gdb/.gdbinit.d/gdbdashbard.conf
index 0cb2ac8..5a94624 100644
--- a/gdb/.gdbinit.d/gdbdashbard.conf
+++ b/gdb/.gdbinit.d/gdbdashbard.conf
@@ -1,6 +1,6 @@
 # auto generated by GDB dashboard
 
-dashboard -layout assembly !registers stack memory source expressions !history !threads
+dashboard -layout !assembly !registers stack memory source expressions !history !threads
 dashboard -style syntax_highlighting 'rrt'
 dashboard -style style_low '0;37'
 dashboard source -style context 15
diff --git a/vim/.vimrc b/vim/.vimrc
index 299bb9d..75bfd0c 100644
--- a/vim/.vimrc
+++ b/vim/.vimrc
@@ -41,6 +41,7 @@ set hlsearch
 set wrap
 set mouse+=a
 set noequalalways " don't auto resize windows when closing (eg: qf window)
+set colorcolumn=80,100
 
 " don't clutter directories with backup files
 set nobackup
@@ -104,7 +105,7 @@ map <C-PageUp> :bprev<CR>
 " jump to word under cursor in a preview window
 noremap <F2> :ptjump <c-r><c-w> <cr>
 " search for word under cursor in current directory
-noremap <F3> ::AsyncRun grep -RIn --exclude=tags <c-r><c-w> <cr>
+noremap <F3> ::AsyncRun grep -RIn --exclude=tags --exclude-dir=build <c-r><c-w> <cr>
 " close and delete current buffer
 noremap <F4> :bp\|bd #<cr>
 noremap <F5> :call RunMake()<cr>