https://olegchursin.com/notes Oleg Chursin is a Senior Software Engineering Manager at Aon in Brooklyn, New York, with a background in graphic design and cognitive linguistics. Notes on the web platform, performance, security, CSS and AI-assisted engineering; work and photography. en-us https://olegchursin.com/notes/what-baseline-guarantees https://olegchursin.com/notes/what-baseline-guarantees Sat, 24 Oct 2026 13:00:00 GMT Web Platform & APIs Baseline is a computed summary of MDN compat data with known blind spots; here is what the definition promises, where it breaks, and a method to check a feature yourself. https://olegchursin.com/notes/swiss-design-claude-design-and-lit https://olegchursin.com/notes/swiss-design-claude-design-and-lit Fri, 16 Oct 2026 12:00:00 GMT How this site went from a Next.js template to a Swiss-style design system of Lit web components, prerendered to plain HTML. https://olegchursin.com/notes/communicate-risk-with-commits https://olegchursin.com/notes/communicate-risk-with-commits Wed, 19 Oct 2022 18:44:00 GMT Using clean straightforward commit messages with specific prefixes to communicate risk https://olegchursin.com/notes/better-user-stories https://olegchursin.com/notes/better-user-stories Wed, 16 Feb 2022 18:44:00 GMT Learn to write better user stories with Mike Cohn's Better User Stories course https://olegchursin.com/notes/aws-security-specialty-qa https://olegchursin.com/notes/aws-security-specialty-qa Tue, 14 Dec 2021 18:44:00 GMT A list of practice questions with answers to help prepping yourself for AWS Certified Security Specialty Exam https://olegchursin.com/notes/date-formatter https://olegchursin.com/notes/date-formatter Mon, 16 Mar 2020 05:35:00 GMT Simple native datetime formatter with Intl.DateTimeFormat https://olegchursin.com/notes/git-squash-commits https://olegchursin.com/notes/git-squash-commits Mon, 02 Mar 2020 18:44:00 GMT A quick step-by-step guide on how to squash Git commits