diff --git a/bin/animated_wallpaper.sh b/bin/animated_wallpaper.sh
deleted file mode 100755
index 093ab7b..0000000
--- a/bin/animated_wallpaper.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/sh
-
-#screen
-SCRH=`xrandr | awk '/current/ { print $8 }'`
-SCRW=`xrandr | awk '/current/ { print $10 }' | sed 's/,//'`
-#SCRW=${SCRW%\.}
-
-#gif
-IMGHW=`gifsicle --info $1 | awk '/logical/ { print $3 }'`
-IMGH=${IMGHW%x*}
-IMGW=${IMGHW#*x}
-
-#position
-POSH=$((($SCRH/2)-($IMGH/2)))
-POSW=$((($SCRW/2)-($IMGW/2)))
-
-xwinwrap -g ${IMGHW}+${POSH}+${POSW} -ov -ni -s -nf -- gifview -w WID $1 -a
diff --git a/bin/backup_to_thumb.sh b/bin/backup-to-thumb
similarity index 97%
rename from bin/backup_to_thumb.sh
rename to bin/backup-to-thumb
index 4f0aa90..245997d 100755
--- a/bin/backup_to_thumb.sh
+++ b/bin/backup-to-thumb
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 rsync -avhW --compress-level=0 --progress --delete --checksum Sync /Volumes/NO\ NAME/
 rsync -avhW --compress-level=0 --progress --delete --checksum Pictures /Volumes/NO\ NAME/
 rsync -avhW --compress-level=0 --progress --delete --checksum Contacts /Volumes/NO\ NAME/
diff --git a/bin/decrypt_password.sh b/bin/decrypt-password
similarity index 100%
rename from bin/decrypt_password.sh
rename to bin/decrypt-password
diff --git a/bin/update b/bin/update
new file mode 100755
index 0000000..fa6808a
--- /dev/null
+++ b/bin/update
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# if type "$brew" > /dev/null; then
+if command -v brew &> /dev/null; then
+  brew update
+  brew upgrade
+  brew cask upgrade
+fi
+
+if command -v nix &> /dev/null; then
+# if type "$nix" > /dev/null; then
+  nix-channel --update
+  nix-env -u
+  home-manager switch
+fi
diff --git a/home-common.nix b/home-common.nix
index 8e5fc0b..b806813 100644
--- a/home-common.nix
+++ b/home-common.nix
@@ -2,7 +2,7 @@
 
 {
   home.packages = with pkgs; [
-    ripgrep fd wget silver-searcher tree ranger nodejs yarn mosh w3m urlview nmap rtv gnupg youtube-dl nodePackages.tern nodePackages.eslint nodePackages.javascript-typescript-langserver nodePackages.js-beautify nodePackages.prettier ffmpeg ispell aspell hexyl nnn entr httpie cacert
+    ripgrep fd wget silver-searcher tree ranger nodejs yarn mosh w3m urlview nmap rtv gnupg youtube-dl nodePackages.tern nodePackages.eslint nodePackages.javascript-typescript-langserver nodePackages.js-beautify nodePackages.prettier ffmpeg ispell aspell aspellDicts.en aspellDicts.en-computers aspellDicts.en-science aspellDicts.fr aspellDicts.de aspellDicts.eo aspellDicts.es hexyl nnn entr httpie cacert
   ];
 
   home.sessionVariables = {
diff --git a/vdirsyncer/config b/vdirsyncer/config
index 7828373..353c583 100644
--- a/vdirsyncer/config
+++ b/vdirsyncer/config
@@ -16,7 +16,7 @@ fileext = ".vcf"
 type = "carddav"
 url = "https://carddav.messagingengine.com/"
 username = "dustinswan@fastmail.com"
-password.fetch = ["command", "~/dotfiles/bin/decrypt_password.sh", "dustinswan@fastmail.com"]
+password.fetch = ["command", "~/dotfiles/bin/decrypt-password", "dustinswan@fastmail.com"]
 
 [pair fastmail_calendar]
 a = "fastmail_calendar_local"
@@ -34,4 +34,4 @@ fileext = ".ics"
 type = "caldav"
 url = "https://caldav.messagingengine.com/"
 username = "dustinswan@fastmail.com"
-password.fetch = ["command", "~/dotfiles/bin/decrypt_password.sh", "dustinswan@fastmail.com"]
+password.fetch = ["command", "~/dotfiles/bin/decrypt-password", "dustinswan@fastmail.com"]