https://briangrinstead.com/ Open Source, Web Development, and more en https://briangrinstead.com/blog/shrinking-vwa-reddit/ The Visual Web Arena reddit app is a comprehensive reproduction of a forum website, with realistic content and a functional backend using Postmill. These sorts of web-environments-in-a-box are useful for both agentic evaluations and browser testing, where test cases often resist isolation into a static page, and testing on the live web is not reliable or reproducible. Wed, 03 Sep 2025 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/shrinking-vwa-reddit/ https://briangrinstead.com/blog/shrinking-vwa-classifieds/ The Visual Web Arena classifieds app is a comprehensive reproduction of a classifieds website, with realistic content and a functional backend. These sorts of web-environments-in-a-box are useful for both agentic evaluations and browser testing, where test cases often resist isolation into a static page, and testing on the live web is not reliable or reproducible. Mon, 21 Jul 2025 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/shrinking-vwa-classifieds/ https://briangrinstead.com/blog/whats-next-for-speedometer/ I have some thoughts about what’s next for the Speedometer benchmark, after the Speedometer 3 launch a few months back. Fri, 23 Aug 2024 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/whats-next-for-speedometer/ https://briangrinstead.com/blog/js-functions-bigquery/ While querying Custom Metrics in HTTP Archive it can be convenient to use JavaScript instead of SQL. Luckily there's a way to do this with BigQuery, which I learned reading the queries for the Web Almanac (link to all the SQL used to generate reports for the 2022 edition). Sat, 11 Mar 2023 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/js-functions-bigquery/ https://briangrinstead.com/blog/httparchive-analysis-of-news-homepages/ Here's a quick analysis I did for Speedometer 3 about the size of the DOM for some common news sites, in order to support the development of a test covering interactions within a complex news-like site. Fri, 10 Mar 2023 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/httparchive-analysis-of-news-homepages/ https://briangrinstead.com/blog/publishing-vite-project-to-github-pages/ Here are my notes from publishing https://bgrins.github.io/editor-tests/ from https://github.com/bgrins/editor-tests. There's an action at https://github.com/peaceiris/actions-gh-pages that makes this easy without setting up additional API tokens, but there are a few Vite specific steps worth noting. Tue, 14 Feb 2023 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/publishing-vite-project-to-github-pages/ https://briangrinstead.com/blog/fetch-latest-copy-from-wayback/ Simple way to fetch the latest copy of a given URL from the wayback machine, without including the banner. Mon, 12 Dec 2022 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/fetch-latest-copy-from-wayback/ https://briangrinstead.com/blog/xbl-replacement-newsletter-20/ This is the twentieth edition of the XUL/XBL Replacement Newsletter. As of last week, we have 0 xul files in mozilla-central. We’ve also been scoping out the work remaining in "XUL Replacement", and have an update on post-XBL cleanups. Mon, 16 Dec 2019 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/xbl-replacement-newsletter-20/ https://briangrinstead.com/blog/firefox-webcomponents/ A couple of weeks ago, we landed a commit that took years of effort at Mozilla. It removed “XBL”, which means we’ve completed the process of migrating the Firefox UI to Web Components. It wasn’t easy - but I’ll get to that later. Wed, 20 Nov 2019 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/firefox-webcomponents/ https://briangrinstead.com/blog/xbl-replacement-newsletter-19/ This is the nineteenth edition of the XUL/XBL Replacement Newsletter. Lots to share this time - we're making progress on the remaining XUL replacement work, while also clearing out the XBL implementation from mozilla-central. Wed, 13 Nov 2019 00:00:00 GMT Brian Grinstead https://briangrinstead.com/blog/xbl-replacement-newsletter-19/