Yokan — 予感 — is the sense of something about to emerge. This is where we build it.
The engineering side of the studio: the software behind our work, numbered technical bulletins from real incidents, Techniversity courses, and recorded working sessions.
The tools we build and operate — releases, changelogs, and a plain statement of what each one is for.
Explore →Numbered engineering bulletins: incident analyses, vendor-behavior findings, and advisories. Dated and citable.
Read →Practical, hands-on infrastructure courses — each unit ends in a verifiable state on your own hardware.
Browse →Recorded working sessions and walkthroughs — the actual terminal, in real time, including the dead ends.
Watch →A nameserver change the control panel reported as saved never reached the registry. Why the re-rendered form proves nothing, and the sixty-second registry check that settles it.
