TL;DR: Don’t put your mail server behind a CNAME.
Two servers, one IP address. Featuring SNI proxies, SSH, and everyone’s favorite service to self-host: mail!
It’s never a good sign when ZFS starts giving you uncorrectable I/O failure errors.
One-button scanning to PDF from a $50 scanner on eBay
List of kernel configurations to run Gentoo successfully
The struggles I faced getting Nouveau + VFIO to work
An adventure on VFIO escapades in Proxmox Linux