home/fish: scanify alias

a function to make things look 'scanned', taken from notes.moira.is

1 files changed, 13 insertions, 0 deletions

diff --git a/home/home.nix b/home/home.nix
index be50d2d..6e18726 100644
--- a/home/home.nix
+++ b/home/home.nix
@@ -181,6 +181,19 @@
       scp $argv[(seq 2 2 (expr $n + 1))].png flora:/var/lib/containers/pleroma/var/lib/akkoma/static/emoji/unsorted/
       ssh flora machinectl shell pleroma /bin/sh -c \"pleroma_ctl emoji reload\"
     '';
+    # source: https://notes.moira.is/Computer+Stuff/Useful+commands/Make+it+look+scanned
+    functions.scanify.body = ''
+      if [ (expr (count $argv) % 2) != 0 ]
+          echo usage: scanify input.pdf output.pdf
+          return 1
+      end
+      if [ test -e tmp.pdf ]
+        echo error: would override tmp.pdf
+        return 1
+      end
+      convert -density 150 $argv[1] -blur .1 -rotate .2 -attenuate .3 +noise gaussian tmp.pdf
+      gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile=$argv[2] tmp.pdf
+    '';
   };
 
   programs.kitty = {