About
I run AIRS, a small software company in Tsukiji, Tokyo. We've been building web services, mobile apps and AI solutions on contract since 2003 — a small team that reads its own code and sits together at the daily standup. We built Spantail for ourselves first. We'd always kept a work log to scope estimates and look back on a sprint, but once coding agents started doing a real share of the work, none of that showed up anymore. So we fixed it, used it every day for a couple of weeks, and it turned out good enough to hand to other people. It's open source and self-hosted — a work log is the most honest record of what a team did, and that belongs on infrastructure you control.
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Joined Product HuntJuly 3rd, 2026
