Notes on IT operations, automation, and hands-on engineering.https://samjolley.com/https://samjolley.com/writing/building-the-tempest-dux/https://samjolley.com/writing/building-the-tempest-dux/A build log for a wireless split keyboard on the dux ergonomic lineage, with a custom KiCad PCB, an integrated PMW3610 trackball, 3D-printed plates, and ZMK firmware bring-up.Sat, 11 Jul 2026 00:00:00 GMThttps://samjolley.com/writing/operational-security-as-architecture/https://samjolley.com/writing/operational-security-as-architecture/Monitoring, segmentation, incident response, and gated automation are design choices you make in how a system is built, not products you bolt on afterward.Sat, 11 Jul 2026 00:00:00 GMT