diff --git a/init.zsh b/init.zsh
index 513e3ad..a10dc38 100644
--- a/init.zsh
+++ b/init.zsh
@@ -15,7 +15,7 @@ function load_plugin {
 }
 # cmd_exists <name>
 function cmd_exists {
-    hash "${1}" >/dev/null 2>&1
+    (( ${+commands[${1}]} ))
 }
 # source_user_file <name>
 function source_user_file {
@@ -116,7 +116,7 @@ if [[ -v NVIM ]]; then
 elif [[ "${is_in_distrobox}" == true ]]; then
     if [[ -v INSIDE_EMACS ]]; then
         [[ -z "${XDG_RUNTIME_DIR}" ]] && \
-            export XDG_RUNTIME_DIR="/run/user/${UID}"
+            export XDG_RUNTIME_DIR="/run/user/1000"
         export EDITOR='distrobox-host-exec emacsclient -a nvim'
         alias emacs='distrobox-host-exec emacsclient -a nvim'
     else
@@ -398,6 +398,8 @@ bindkey -M vicmd 'j' history-substring-search-down
 bindkey -M emacs '^P' history-substring-search-up
 bindkey -M emacs '^N' history-substring-search-down
 
+cmd_exists fzf && source <(fzf --zsh)
+
 # Only match at the beginning of the line
 HISTORY_SUBSTRING_SEARCH_PREFIXED="true"
 HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND=""