diff --git a/nvim/keymappings.vim b/nvim/keymappings.vim
index d830f8c..a32bd2b 100644
--- a/nvim/keymappings.vim
+++ b/nvim/keymappings.vim
@@ -44,6 +44,10 @@ vmap ∆ ]egv
 vmap ˙ <gv
 vmap ¬ >gv
 
+" same for using yankstack, use alt + p, alt + P
+nmap π <Plug>yankstack_substitute_older_paste
+nmap ∏ <Plug>yankstack_substitute_newer_paste
+
 " no help while mishitting ESC - awesome
 " just type :help if you need help is easier
 noremap <F1> <ESC>
diff --git a/zsh/functions b/zsh/functions
index 0f6e33a..da7a12b 100644
--- a/zsh/functions
+++ b/zsh/functions
@@ -1,33 +1,33 @@
 # convert a video to mp4 + webm in one go for web
 function webvideo() {
-  ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 128k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -quality best -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1.webm
-  ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 128k -ar 44100 -vcodec libx264 -vprofile high -preset slower -pix_fmt yuv420p -r 25 -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1.mp4
+  ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 128k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1.webm
+  ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 128k -ar 44100 -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1.mp4
 }
 
 function webvideohigh() {
-  ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 160k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -quality best -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high.webm
-  ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 160k -ar 44100 -vcodec libx264 -vprofile high -preset slower -pix_fmt yuv420p -r 25 -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high.mp4
+  ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 160k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high.webm
+  ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 160k -ar 44100 -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high.mp4
 }
 
 function webvideolow() {
-  ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 96k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -quality best -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low.webm
-  ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 96k -ar 44100 -vcodec libx264 -vprofile high -preset slower -pix_fmt yuv420p -r 25 -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low.mp4
+  ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 96k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low.webm
+  ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 96k -ar 44100 -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low.mp4
 }
 
 # convert a video to mp4 + webm in one go for web
 function webvideonoaudio() {
-  ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -quality best -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1--no-audio.webm
-  ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slower -pix_fmt yuv420p -r 25 -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1--no-audio.mp4
+  ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1--no-audio.webm
+  ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1--no-audio.mp4
 }
 
 function webvideohighnoaudio() {
-  ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -quality best -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high--no-audio.webm
-  ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slower -pix_fmt yuv420p -r 25 -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high--no-audio.mp4
+  ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high--no-audio.webm
+  ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high--no-audio.mp4
 }
 
 function webvideolownoaudio() {
-  ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -quality best -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low--no-audio.webm
-  ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slower -pix_fmt yuv420p -r 25 -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low--no-audio.mp4
+  ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low--no-audio.webm
+  ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low--no-audio.mp4
 }
 
 # create and change to directory/folder