Insights

What we've learned building software that ships

Practical writing from the Umvix team on web development, mobile apps, AI chatbots, automation, and SaaS — what we build, how we build it, and what it costs.

32 articles · 5 topics

Tagged “Architecture”✕

SaaS & Dashboards

20 August 2026 3 min read

Multi-tenant SaaS: shared vs isolated databases

The tenancy model you pick in week one determines your cost curve, your compliance story, and how painful your migrations are for years. A practical comparison.

SaaSArchitecture

AI & Chatbots

18 August 2026 6 min read

RAG vs fine-tuning: which does your business need?

Almost every business asking for a fine-tuned model needs retrieval instead. The difference without jargon, and when fine-tuning genuinely earns its cost.

AIArchitecture

Mobile Apps

17 August 2026 2 min read

Cross-platform vs native: when to build twice

Cross-platform covers roughly 90% of apps. Here is how to tell whether yours is in the other 10% before you commit to paying for two codebases.

Mobile AppsArchitecture

SaaS & Dashboards

17 August 2026 3 min read

SaaS tech stack in 2026: what we build on and why

The stack we reach for by default, the reasoning behind each choice, and where we deliberately deviate. Opinionated, and explained rather than asserted.

SaaSArchitecture

Automation

10 August 2026 3 min read

Self-hosted automation: when to own the engine

Running n8n or a custom orchestrator yourself trades a subscription for operational responsibility. The three situations where that trade is clearly worth it.

AutomationArchitecture

AI & Chatbots

7 August 2026 3 min read

Choosing an LLM in 2026 without guessing

Leaderboards do not predict how a model performs on your task. A selection process built on real evaluation, cost per outcome, and the constraints that bind.

AIArchitecture