YuSMP Group engineering blog
Software engineering
for people who ship
Engineering-led guides for US and EU product teams: AI/LLM stacks, SaaS architecture, MVP economics, mobile delivery, and EU/US compliance — written by senior engineers and counsel, not by anyone reciting a 2021 benchmark.
All articles
SaaS
12 min
How to build an online marketplace in 2026
Build a two-sided marketplace in 2026 — MVP scope, liquidity, commission models, Stripe Connect payments and EU rules (DSA, DAC7).
Compliance
12 min
Ecommerce sales tax automation in 2026: nexus and tools
US ecommerce sales tax in 2026 — economic nexus thresholds by state, marketplace facilitator rules, and Avalara vs TaxJar vs Stripe Tax compared.
Enterprise
12 min
EHR integration in 2026: HL7, FHIR and healthcare APIs
How to integrate with EHRs in 2026 — HL7 v2, FHIR R4, SMART on FHIR, USCDI v3 and TEFCA, plus Epic and Cerner patterns, cost, timelines and HIPAA compliance.
AI / LLM
12 min
Generative Engine Optimization: how to get cited by AI search in 2026
How to get cited by Google AI Overviews, ChatGPT and Perplexity in 2026 — front-loaded answers, entity density, FAQ schema, the llms.txt reality and AI-visibility measurement.
Mobile
12 min
Crypto Exchange Development Cost 2026
What it costs to build a crypto exchange or wallet in 2026 — matching engine, custody/wallets, KYC/AML, liquidity, white-label vs custom, a module cost breakdown and timeline.
Web
14 min
Web App Scalability: Architecting for Growth
Architect web apps for growth — horizontal scaling, caching, async queues, read replicas, sharding and autoscaling.
Custom
12 min
Loan Origination Software Development
How to build loan origination software (LOS) — application intake, KYC, credit decisioning and risk scoring, underwriting workflow, loan management, build vs platform, cost and timeline.
Web
14 min
Progressive Web Apps in 2026: Build Guide
Build a Progressive Web App in 2026 — service workers, caching, manifest, push, offline, and iOS vs Android limits.
Enterprise
14 min
Enterprise Software: Build vs Buy in 2026
Enterprise software build vs buy in 2026 — when to buy, when to build, vendor lock-in, 5-year TCO at enterprise scale and a hybrid build-core-buy-edge model.
SaaS
18 min read
SaaS churn reduction playbook for 2026
Leading indicators, in-app save-flows, Stripe Smart Retries / dunning, CS tiers, win-back timing and the pricing experiments that reduce churn.
Enterprise
13 min
Legacy System Modernization in 2026
Legacy system modernization in 2026 — the 6 R's, cost ranges, AI-assisted savings of 30–40%, phased ROI in 12–14 months and how to build the business case.
Mobile
11 min
Digital Wallet App Development Guide
How to build a digital wallet app — stored balance, card tokenization, P2P transfers, top-up, KYC, NFC/contactless, security, cost and timeline for US and EU.
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