diff --git a/bash/completion b/bash/completion
index 147bbc7..d2598ca 100644
--- a/bash/completion
+++ b/bash/completion
@@ -1,9 +1,6 @@
-# default bash autocompletion
-#/etc/bash_completion
-#/usr/local/share/bash-completion/bash_completion
-bash_completion_file="/opt/arch/share/bash-completion/bash_completion"
+bash_completion_file="$HOME/.nix-profile/share/bash-completion/bash_completion"
 if [[ $BASH_VERSION != 3.* && -f "$bash_completion_file" ]]; then
     source "$bash_completion_file"
 fi
 
-# vim: ft=sh
+# vim: ft=bash
diff --git a/shell/arch b/shell/arch
deleted file mode 100755
index cd6c2ee..0000000
--- a/shell/arch
+++ /dev/null
@@ -1,2 +0,0 @@
-export PATH="/opt/arch/bin:/opt/arch/sbin:$PATH"
-#export MANPATH="/opt/arch/share/man:/usr/local/share/man:/usr/share/man:/opt/X11/share/man:/Library/Developer/CommandLineTools/usr/share/man"
diff --git a/shell/chruby b/shell/chruby
index 16642e0..823abfc 100755
--- a/shell/chruby
+++ b/shell/chruby
@@ -1,5 +1,5 @@
-if [[ -f /opt/arch/share/chruby/chruby.sh ]]; then
-    source /opt/arch/share/chruby/chruby.sh
+if [[ -f $HOME/.nix-profile/share/chruby/chruby.sh ]]; then
+    source $HOME/.nix-profile/share/chruby/chruby.sh
 fi
 
 _ruby-version() {
diff --git a/zsh/completion b/zsh/completion
index b7538c4..f6669b5 100644
--- a/zsh/completion
+++ b/zsh/completion
@@ -1,5 +1,5 @@
-# archmac completions
-fpath=(/opt/arch/share/zsh/site-functions $fpath)
+# nix completions
+fpath=($HOME/.nix-profile/share/zsh/site-functions $fpath)
 
 # Use modern completion system
 autoload -Uz compinit