Articles
Notes from real projects.
What we ran into building and running our own products, and how we fixed it. Every detail comes from the code.
All articles
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A small A/B testing script that gives the same variant everywhere
How myab holds its browser SDK to a gzipped size budget on every build, and keeps variant assignment identical across its SDKs with shared test cases.
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How HeySales counts visits from people who haven't accepted cookies
How the HeySales tracker counts visits with nothing stored on the device until a visitor agrees, recognises them for a day by hash, and flags bots.
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Sending transactional email from Cloudflare Workers
How HeySales and HelloRestaurant send password resets, invitations and booking reminders with Cloudflare Email Sending and a send_email binding.
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What changed when we moved two apps from Postgres to Cloudflare D1
The D1 and SQLite rules that broke our Postgres code when HeySales and HelloRestaurant moved to Cloudflare Workers, and how we handled each one.
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Why we replaced googleapis with plain fetch on Cloudflare Workers
Google's Node client left gzipped replies undecoded in our Workers build, so HeySales now calls Google's REST APIs directly with fetch.
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