diff --git a/arch_linux_init/utils.bash b/arch_linux_init/utils.bash
index c60ae2a..35f4967 100755
--- a/arch_linux_init/utils.bash
+++ b/arch_linux_init/utils.bash
@@ -29,6 +29,7 @@ pacaur -S \
 	gvfs-mtp \
 	pass \
 	bash-completion \
+	avr-libc avr-gcc dfu-programmer dfu-util \
 	--noconfirm --noedit
 
 sudo ln -s /usr/bin/google-chrome-unstable /usr/bin/chrome
diff --git a/vim/config/init.vim b/vim/config/init.vim
index 6089130..c6bf7d3 100644
--- a/vim/config/init.vim
+++ b/vim/config/init.vim
@@ -83,7 +83,7 @@ let c_comment_strings = 0 " dont highlight strings inside C comments
 
 " Python
 let python_space_errors = 1
-autocmd FileType python setl tabstop=2 noexpandtab shiftwidth=2 softtabstop=2
+autocmd FileType python setl tabstop=4 expandtab shiftwidth=4 softtabstop=4
 
 " HAMLC
 autocmd BufRead,BufNewFile *.hamlc set ft=haml