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Notes from building
private software.

Why we build software we can’t read, what local-first really means, and how is coming together, in the open. Looking for how-to guides? Read the Business blog →

Privacy Why I built a business tool I can’t read Most software reads your data because that’s the business model. is built the opposite way, so a breach, a buyer or a court order can’t make me hand over what I can’t open. → Building Building in the open No launch hype, no growth deck, just honest weekly progress. Here’s how I’m building , what’s shipped, and how to tell me what to build next. → Privacy What “local-first” actually means for your data Local-first isn’t just offline mode. It’s a different answer to a basic question: where does your data live, and who can read it? Here’s the plain-English version. →

The private, local-first operating system for your business. Your money, invoices, stock and clients in one place, sealed on your device. Your data stays yours.

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Sedonis is an independent software company based in England & Wales. Full company registration details will be published here once incorporation completes.

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