Show HN: Reminal – A zero-config SSH alternative (no open ports, no keys)

Reminal is a new open-source tool that lets you SSH into a remote computer without opening any ports on its firewall or setting up SSH keys — it works by having the target machine establish an outbound connection to a relay server, which you then connect to from your local machine. This solves a common pain point: many home/office machines sit behind NAT, strict firewalls, or dynamic IPs, making traditional SSH tricky or impossible without complex configuration (port forwarding, dynamic DNS, VPNs). The project is by Harshal Gajjar, published on GitHub as a "Show HN" (a community showcase on Hacker News). It's an alternative to similar tools like Tailscale SSH, ngrok, or Cloudflare Tunnel, but aims to be simpler ("zero-config").