I promised I'd fix it. Here's exactly what broke in DotGhostBoard after v1.5.1 — PyInstaller frozen environments, insecure /tmp update paths, missing UI assets, and a polkit regression — and how each one was resolved. This is a follow-up to Engineering the Nexus Release. At the end of that article I wrote: "Stay tuned for v2.0.0 Cerberus." Before Cerberus ships, there's something I owe you — th