Ahmad AffanThe blog
Notes from building software for real businesses.
Practical guides on SaaS, Telegram bots, AI voice agents, websites and automation. Each one is checked against current sources, and the sources are listed at the bottom.
Multi-tenant SaaS architecture: shared tables or a database per tenant?
The tenancy model is the one decision you can’t cheaply undo. Here is how the four common patterns compare, and how I choose between them for real products.
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Stripe subscription billing for SaaS: webhooks, plan limits and what goes wrong
Taking the first payment is easy. Keeping access correct when cards fail, plans change and events arrive out of order is the real work.
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Telegram Mini App or bot? How to choose what to build in 2026
Bots are conversations. Mini Apps are full web apps inside Telegram. Most serious products use both, and this guide shows where each one belongs.
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AI voice agents for business: Retell vs Vapi on cost, latency and fit (2026)
The headline price per minute is never the bill. Here is what an AI phone agent really costs, how fast it answers, and how I pick a platform.
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WordPress or a custom Next.js site? An honest guide for business owners (2026)
Most business sites do not need a custom app, and some really do. Here is how to tell which one you are, and what to keep patched either way.
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n8n vs Zapier vs Make in 2026: pricing, licences and when to write code instead
The same workflow can cost ten times more on one tool than another. Here is how the three bill you, and when I reach for code instead.
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How a Telegram signal copier for MT4/MT5 works, and why latency is not slippage
A signal copier is a pipeline with five hops and a lot of ways to lose money. Here is the architecture I use, and how to measure what a copier really costs you.
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