Move local paths to variables.

Bugfix.

Fix cache dir.

_gui/install.sh

@@ -1,15 +1,19 @@
 #!/bin/sh
 
+# variables
+LOCAL_BIN_DIR=${HOME}/.local/bin
+XDG_CONFIG_HOME=${HOME}/.config
+
 # prepare local dirs
-mkdir -p ~/.config ~/.local/bin
+mkdir -p ${XDG_CONFIG_HOME} ${LOCAL_BIN_DIR}
 
 # install configs
 for i in _configs/*; do
-  rm -rf ~/.config/$(basename $i)
-  ln -sf $(pwd)/${i} ~/.config
+  rm -rf ${XDG_CONFIG_HOME}/$(basename $i)
+  ln -sf $(pwd)/${i} ${XDG_CONFIG_HOME}
 done
 
 # install scripts
 for i in _scripts/*; do
-  ln -sf $(pwd)/${i} ~/.local/bin
+  ln -sf $(pwd)/${i} ${LOCAL_BIN_DIR}
 done