Series on Alexey Panfilov — Product, AI, Systemshttps://dzarlax.dev/series/Recent content in Series on Alexey Panfilov — Product, AI, SystemsHugoenTue, 19 May 2026 00:34:27 +0200Health Dashboardhttps://dzarlax.dev/series/health-dashboard/Mon, 01 Jan 0001 00:00:00 +0000https://dzarlax.dev/series/health-dashboard/<p>A self-hosted health-tracking system built around one rule: refuse to fabricate numbers when the inputs are missing.</p> <p>The series follows the order in which the system stopped being a pretty chart and started being something I trust to read first thing in the morning. Each part is one layer of trust earned: the data, the columns, the source behind each column, the target, the formula&rsquo;s silence, the verdict, the boundary between server and client, and finally the question the system is allowed to ask the user.</p>