Self-hosting email from a residential IP is a notorious challenge. Blacklists automatically block most home-based SMTP traffic.
Resolution: Engineered a secure SMTP relay bridge. Configured and validated DKIM (DomainKeys Identified Mail), SPF (Sender Policy Framework), and DMARC records to establish domain authority and bypass SPAM filters. This ensures the contact form on this site actually reaches the destination.
The Dell server acts as the primary gateway, but running multiple services (Gitea, FastAPI, Nginx) on one box requires strict traffic orchestration.
Resolution: Implemented an Nginx Reverse Proxy to handle SSL/TLS termination via Let's Encrypt. Traffic for git.embeddedc.online is internally routed to port 3000, while the main site and mail API are handled on standard 443/80 ports.
To avoid reliance on third-party cloud platforms, I provisioned a private Gitea instance for version control.
The Step: Successfully mapped the subdomain and configured the internal database. This allows me to push Bare-Metal C code from the Ultra 7 workstation directly to the local Dell server without the code ever leaving my controlled infrastructure.
Adapting to demyelinating neuropathy required a shift in physical workflow.
The Step: Optimized a CLI-only development environment on the Ultra 7. By leveraging high-efficiency keyboard shortcuts, Vim, and automated build scripts, I have minimized the physical overhead of development, allowing me to focus entirely on C algorithm performance.