if you're using herdr, i built a plugin exactly for this reason. its a pwa so requires a proper frontdoor for secured access (tailscale, netbird etc.).
Tailscale integration works well too. The mobile notification setup was a little clunky and the instructions were confusing, until I found the directory with the shell scripts. It should probably expose a herdr action to generate the keys and include that in the documentation.
One thing though: the subagent lines should be clickable like they are in Termux but your actions box absorbs the click and focuses the GUI input line.