diff --git a/README.md b/README.md
index 9b3baee..43ddcd6 100644
--- a/README.md
+++ b/README.md
@@ -60,3 +60,4 @@ make install
 
 - `pro [path]` — jump to a project directory under `$PROJECTS_HOME` (`~/Projects` on macOS, `~` on Linux), with tab completion for nested paths
 - `dfh [topic]` — dotfiles help; run `dfh` for version info and available topics, `dfh tmux` / `dfh fzf` / `dfh vim` for keybinding references extracted from config files
+- `tmux-ssh <host>` — SSH into a machine and attach to (or create) a tmux session named `main`
diff --git a/files/help/tmux b/files/help/tmux
index 69b4f4d..cb61041 100644
--- a/files/help/tmux
+++ b/files/help/tmux
@@ -19,9 +19,10 @@
 
 Within the session list (`prefix + s`): `x` to delete, `t` to tag.
 
-Attach to a remote tmux over SSH:
+Attach to (or create) a tmux session on a remote machine:
 ```sh
-ssh darth.local -t "/opt/homebrew/bin/tmux attach"
+tmux-ssh kylo
+tmux-ssh 192.168.86.201
 ```
 
 ## Windows
@@ -38,7 +39,7 @@ ssh darth.local -t "/opt/homebrew/bin/tmux attach"
 ## Panes
 
 | Key                | Action                                  |
-|--------------------|-----------------------------------------|
+|--------------------|------------------------------------------|
 | `prefix + \|`      | Split horizontally (keeps current path) |
 | `prefix + -`       | Split vertically (keeps current path)   |
 | `prefix + h/j/k/l` | Move between panes (vi-style)           |
diff --git a/files/shell/functions/tmux-ssh b/files/shell/functions/tmux-ssh
new file mode 100644
index 0000000..715949f
--- /dev/null
+++ b/files/shell/functions/tmux-ssh
@@ -0,0 +1,4 @@
+tmux-ssh() {
+    local host="${1:?Usage: tmux-ssh <host>}"
+    ssh -t "$host" 'tmux new-session -A -s main'
+}