Blog/From HTML demo to production bot: our 14-day deployment method
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From HTML demo to production bot: our 14-day deployment method

D1-D3 discovery, D4-D8 dev, D9-D12 integrations, D13-D14 production. The H'appi lean method, applied across 17+ projects in 11 sectors β€” no bad surprises.

H'appi Team
February 15, 2026
7 min read

Why start with a static demo

Before writing a single line of backend code, we ship a static HTML demo deployed on Vercel β€” often in under a day. It's the fastest way to get client buy-in before investing in real development, and it avoids building for six weeks on an assumption that was never validated.

D1-D3 β€” Discovery

We document the customer's 20 to 30 most frequent requests, business-specific vocabulary, edge cases that require human escalation, and the desired tone of voice. This phase alone determines whether the final bot feels generic or like someone who's worked at your company for years.

D4-D8 β€” Development

Building the backend (API, knowledge base, planned integrations), training the model on the corpus collected during discovery, and initial internal tests against the documented use cases.

D9-D12 β€” Integrations

Connecting to the client's real systems: CRM, ERP, calendar, product catalogue. This is usually where surprises show up β€” which is exactly why it helps to already have a working bot to test against, rather than discovering integration issues at the same time as building the bot's core.

D13-D14 β€” Production

Final deployment, monitoring in place, documentation handed to the client team. The bot goes live with a follow-up plan, not just "released into the wild".

17+ projects, 11 sectors, one method that holds up

This method isn't theoretical β€” it's been applied across more than 17 projects in 11 different sectors: furniture and decor, hospitality, food and agribusiness, construction, manufacturing, transport and logistics, notarial law, finance, sport, e-commerce, and digital identity (KYC). The core process stays the same; what changes is the vocabulary and integrations specific to each business.

From HTML demo to production bot: our 14-day deployment method β€” H'appi Blog | H'appi