diff --git a/.tmux b/.tmux
deleted file mode 100755
index ca108368a..000000000
--- a/.tmux
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-set -o nounset
-
-session_name="${1:-oliverdavies-uk}"
-session_path="${2:-$(pwd)}"
-
-if tmux has-session -t="${session_name}" 2> /dev/null; then
-  tmux attach -t "${session_name}" ||
-    tmux switch-client -t "${session_name}"
-fi
-
-tmux new-session -d -s "${session_name}" -n vim -c "${session_path}"
-
-# 1. Main window: Vim.
-tmux send-keys -t "${session_name}:vim" "nvim" Enter
-tmux split-pane -t "${session_name}:vim" -h -c "${session_path}" -p 40
-tmux send-keys -t "${session_name}:vim.right" "./run start" Enter
-
-# 2. General shell use.
-tmux new-window -t "${session_name}" -c "${session_path}"
-
-tmux switch-client -t "${session_name}:vim.left" ||
-  tmux attach -t "${session_name}:vim.left"
-
-# vim: ft=bash
diff --git a/.tmuxinator.yml b/.tmuxinator.yml
new file mode 100644
index 000000000..93087edcc
--- /dev/null
+++ b/.tmuxinator.yml
@@ -0,0 +1,10 @@
+name: oliverdavies-uk
+root: .
+
+windows:
+  - vim: nvim
+  - workers:
+      panes:
+        - ./run start
+        - ./run npm:build:css
+  - shell: