troubleshooting-devbox

What problem does it solve?

Solves SSH connection and NixOS configuration issues on the Hetzner devbox.

Core Features & Use Cases

• SSH connectivity troubleshooting: Diagnose and fix host key verification errors and connection timeouts.
• NixOS verification and recovery: Validate NixOS version, perform rebuilds, and rollback generations when needed.
• Devbox health checks: Provide guided commands to verify services, disk space, and system status on the devbox.

Quick Start

To begin troubleshooting, use the steps described in the skill body:

• Confirm the host key: ssh-keygen -R devbox; ssh-keygen -R $(hcloud server ip devbox)
• Reconnect with acceptance: ssh -o StrictHostKeyChecking=accept-new devbox
• Verify environment: ssh devbox 'nixos-version' && ssh devbox 'tmux -V' && ssh devbox 'nvim --version'
• Check status: ssh devbox 'journalctl -b --priority=err' && ssh devbox 'systemctl --user list-timers'
• If needed, rebuild: ssh devbox 'sudo nixos-rebuild switch' and reboot as necessary.