I've shipped two OSS products this month: tracelane and peek. They share a recording engine and a trust model. Neither has a SaaS, a dashboard, or a signup. Both work fully offline. This post is the why.
tracelane
The reporter for your WebdriverIO, Playwright, and Cypress tests. Self-contained HTML for every run — replay failures, audit successes, attach to any bug tracker. No SaaS, no dashboard, no signup.
I have lost many afternoons to a CI line that says "Element not visible: [data-test=submit]" and nothing else. The screenshot tells me the page is white. The console log is empty because the assertion fired before the app got to throw anything. The video, if there is one, is hosted on a vendor I'd rather not pay for, behind an auth wall I'd rather not maintain, and gone in 30 days.
The fix is not novel. rrweb records the DOM and console at usable fidelity. The novel part is the constraint I want to enforce: the resulting artifact must be a single .html file on disk that opens in any browser, fully offline, with the player and event blob inlined. No cloud upload. No signup. Attach it to a Jira ticket, drop it in Slack, archive it in S3, send it to a contractor outside your network — it's just a file.
