diff --git a/home/dot_zshrc.tmpl b/home/dot_zshrc.tmpl
index be1d365..4938948 100644
--- a/home/dot_zshrc.tmpl
+++ b/home/dot_zshrc.tmpl
@@ -116,3 +116,7 @@ eval "$(jj util completion zsh)"
 function reldate() {
     date -v "${1}" "+%Y-%m-%d"
 }
+
+function _zkhx() {
+    hx --hsplit tasks.xit ${1}
+}
diff --git a/home/private_dot_config/zk/config.toml b/home/private_dot_config/zk/config.toml
index f627666..d29c280 100644
--- a/home/private_dot_config/zk/config.toml
+++ b/home/private_dot_config/zk/config.toml
@@ -30,3 +30,6 @@ sync = 'jj git fetch && jj git push'
 log = 'jj log -r ".."'
 diff = 'jj diff'
 daily = 'zk new --no-input "$ZK_NOTEBOOK_DIR/journal/daily"'
+
+[tool]
+editor = "hx --hsplit journal/tasks.xit"