Emdash over Orca when the sandbox SSH is not a normal host

For a personal coding setup (any CLI such as dsh, omp, Claude Code, BYO logins, 6-7h/day on Agent37 or a small SSH VM), Emdash is the orchestrator that matches: Apache-2.0, 30+ CLIs, plain SSH/SFTP, tmux on the remote, no runtime installed on the host. Orca is the richer ADE (browser, design mode, plugins) and wants a normal SSH target because it installs a Node server on the host. T3 Code also SSHes but downloads a server into ~/.t3. Paradev remote, Kepler remote, and Crystl orchestration are paid. Conductor and Vibe Kanban are winding down or already shut. Agent37 SSH is a ProxyCommand tunnel, so any orchestrator attaches only if it uses OpenSSH config.