How I built a try-it-now demo with disposable organizations: seeded data, session handoff via cookie paths, and a cron that quietly deletes everything.
I maintain NeNe Invoice, a self-hosted invoicing OSS (PHP + SPA). Recently I needed to show it to people who are not engineers — and nothing kills a demo faster than "first, create an account."
What I wanted:
A URL you click. No signup, no login screen, no instructions.
Realistic data already inside — invoices, payments, overdue items.
No way for one visitor to see another visitor's mess.
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