I need someone who is experienced with Linux, Docker, SSH tunneling, reverse proxies, Let’s Encrypt, and sish to help me build a fully working self-hosted tunneling service like pinggy.io or ngrok, but on my own AWS server. I already completed ~70% of the setup, but something is misconfigured with sish (SSH reverse tunnel not authenticating), so I need a professional to: Your Tasks 1. Fix / Configure sish properly • SSH server must bind to 0.0.0.0:4242 • Persistent SSH server key must load from deploy/keys • Public key authentication must work (I will provide my local public key) • Automatic random subdomain generation must work (*.example.xyz) 2. Fix authentication issue • SSH client is failing with → Permission denied (publickey) • I need this resolved so I can run: ssh -p 4242 -R0:localhost:8080 tcp@ example.com and instantly get a public HTTPS URL. 3. Ensure Nginx reverse proxy works • Domain: example.com • Wildcard SSL from Let’s Encrypt is already installed • Nginx should forward *.example.xyz → sish backend port 8080 4. Ensure tunnels resolve correctly