<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>SP//LOG</title><description>Field notes from building software.</description><link>https://blog.suryanshpatwa.in/</link><language>en</language><item><title>I built a webcam focus tracker, then deleted the focus score</title><link>https://blog.suryanshpatwa.in/articles/quiet-study-companion/deleted-the-score/</link><guid isPermaLink="true">https://blog.suryanshpatwa.in/articles/quiet-study-companion/deleted-the-score/</guid><description>CogniFlow started as a webcam focus tracker, but the score looked precise while measuring the wrong thing.</description><pubDate>Tue, 04 Aug 2026 00:00:00 GMT</pubDate><category>computer-vision</category><category>on-device</category><category>attention</category><category>measurement</category></item></channel></rss>