Brands I back / PostHog

Open source product analytics: events, session replay, feature flags, A/B tests and surveys in one platform, with a real free tier.

PostHog is an open source product analytics platform. It covers event analytics, session replay, feature flags, A/B testing, surveys and error tracking in one product, on one data model. You can use their cloud or self host it, and the free tier covers around a million events a month before any payment is required.

The company launched in 2020 through Y Combinator and develops the whole platform in the open; the code is public on GitHub. One snippet feeds every tool, so a funnel, the replay of the sessions inside it and the flag that fixes the problem all live in the same place, joined on the same user.

What earned it a page here is the consolidation. Analytics, replays, flags and experiments usually mean three or four subscriptions, as many SDKs, and identity stitching between them. Replacing that stack with one product removes integration work that nobody bills for but everybody pays. Pricing is usage based, billing limits can be capped from the dashboard, and the free tier is large enough that a small product can run on it for a long time.

Get ahead.

Get the best articles, carefully selected to save you time.

Featured

A pivot is often just the polite word we use with investors when the first company is dead and we have decided to build another one. And that is fine. Not because failure is noble, but because luck needs exposure: every market you enter, every product you ship and every channel you test is one more surface where something unexpected can land.

Build articles

OpenClaw and Hermes Agent are both MIT-licensed AI agents you host yourself, and their own documentation disagrees about where the safety boundary sits. OpenClaw puts it at the gateway: authenticate to it and you are trusted with everything it reaches. Hermes puts it around the command, inside a container. Pick by which of those you can live with.

Reddit is not split into believers and skeptics about vibe coding. Across the eight discussion threads Google ranked for this query in September 2026, the reports that failed and the reports that worked describe the same defect: generated code that runs, looks finished, and does not do what it claims. The check that catches it is to remove what the feature depends on and confirm it breaks.

Marketing articles

A bad news email subject line should identify the affected service, order or request. For an operational change, include the change and date: "Your Pro plan rises to $29/month at your 12 November renewal". For a sensitive personal decision, a neutral subject naming the request can be more appropriate. Put the explanation and next steps in the body.

Cold email agencies sell three different products under one name: a lead generation retainer where they own the list and the sending, an infrastructure package that rents you domains and warmed mailboxes, and a done with you sprint that sets up your stack and leaves. The pay structure tells you which one you are buying, and the guaranteed meeting count is the one to refuse.

Projects

The essentials, by email.

What works, what does not, what I would do differently. Sent when I have something useful to say.