Insights & Guides

Web-Entwicklung & Automatisierungs-Insights

Praktische Guides zu Web-Entwicklung, Flutter, n8n-Automatisierung und digitaler Strategie. Echte Projekt-Einblicke von einer Senior-only-Agentur.

100 Artikel

·13 Minuten Lesezeit

Server Actions in Next.js App Router: Production Form Patterns for Validation, Errors, and Optimistic UI

A production-ready guide to Next.js Server Actions form validation with Zod, structured error handling, progressive enhancement, optimistic UI, and rate limiting — plus when to choose Server Actions vs API routes.

Next.jsServer ActionsFormsZodApp RouterSecurityUX
Adrijan OmićevićArtikel lesen
·15 Minuten Lesezeit

Next.js + Supabase RLS for Multi‑Tenant SaaS: Policies, Roles, and Safe Data Access

A practical guide to Next.js App Router and Supabase Row Level Security for multi-tenant SaaS: table design, policies, roles, server-side access patterns, common pitfalls, and a deployment checklist.

Next.jsSupabasePostgreSQLRow Level SecurityMulti-tenantSaaSSecurityApp Router
Adrijan OmićevićArtikel lesen
·15 Minuten Lesezeit

Technical Discovery That Prevents Scope Creep: Estimation Inputs, Risk Register, and a Clear Delivery Plan

Learn how technical discovery for web app estimation produces reliable estimates, a risk register, and a delivery plan that prevents scope creep without over-specifying.

technical discoveryweb app estimationscope creepproject planningagency process
Adrijan OmićevićArtikel lesen
·15 Minuten Lesezeit

Flutter + Supabase in Production: Auth, Realtime, RLS, and Offline-Friendly Data Access (2026 Guide)

A production-ready guide to Flutter Supabase auth realtime offline sync: secure auth flows, Row Level Security patterns, realtime subscriptions, and offline-first UX with practical code and gotchas.

FlutterSupabaseAuthenticationRealtimeOffline-firstRLSMobile DevelopmentPostgreSQL
Adrijan OmićevićArtikel lesen
·14 Minuten Lesezeit

Scaling Flutter with Modularization: Monorepo Setup with Melos, Shared Packages, and Clean Boundaries

A practical guide to Flutter monorepo Melos modularization: when to split into packages, how to structure shared code, enforce boundaries, and run CI and tests efficiently across a growing codebase.

FlutterMonorepoMelosModularizationCI/CDTestingArchitecture
Adrijan OmićevićArtikel lesen
·16 Minuten Lesezeit

Document Processing Automation with n8n: OCR, Classification, Extraction, and Routing (Production-Ready Guide for 2026)

Build a production-grade n8n document processing automation pipeline for inbound PDFs and images: OCR, classification, field extraction, validation, human review, audit trails, and routing to CRM and accounting tools.

n8nAutomationOCRDocument ProcessingAIIntegrationsAccountingCRM
Adrijan OmićevićArtikel lesen
·17 Minuten Lesezeit

Automated Reporting with n8n: Build Weekly KPI Digests from GA4, Stripe, and Postgres

A practical guide to automated reporting with n8n: pull weekly KPIs from GA4, Stripe, and Postgres, validate data quality, generate a concise narrative summary, and send it to Slack and email with retries and maintainable structure.

n8nAutomationReportingGA4StripePostgreSQLSlackEmailData Quality
Adrijan OmićevićArtikel lesen
·16 Minuten Lesezeit

n8n + Supabase/Postgres Automation Patterns: Webhooks, RLS-Safe Writes, and Reliable Sync

A practical guide to n8n Supabase Postgres automation patterns: webhook ingestion, idempotency keys, upserts, RLS-safe writes, and reliable two-way sync for SaaS back-office workflows.

n8nSupabasePostgresAutomationWebhooksData SyncSaaS
Adrijan OmićevićArtikel lesen
·13 Minuten Lesezeit

Dynamic Open Graph Images in Next.js: OG Generation, Caching, Fonts, and Edge Runtime Tips

A practical 2026 guide to Next.js dynamic Open Graph images: per-page OG generation, font loading, cache headers, Edge runtime gotchas, and deployment troubleshooting.

Next.jsSEOOpen GraphPerformanceEdge RuntimeCaching
Adrijan OmićevićArtikel lesen
·15 Minuten Lesezeit

Next.js Technical SEO Audit Checklist (App Router): Indexing, Metadata, Core Web Vitals, and Structured Data

A step-by-step Next.js technical SEO audit checklist for the App Router: crawling and indexing controls, metadata and canonicals, sitemaps and robots, pagination, Core Web Vitals, and JSON-LD schema with copy-pasteable code.

Next.jsSEOTechnical SEOApp RouterPerformanceCore Web VitalsStructured Data
Adrijan OmićevićArtikel lesen
·14 Minuten Lesezeit

Building a React Design System with Design Tokens: Tailwind CSS + Radix UI + TypeScript

A practical 2026 guide to building a React design system with Tailwind and Radix using design tokens, accessible primitives, theming, and reusable packages across multiple apps.

ReactDesign SystemTailwind CSSRadix UITypeScriptDesign TokensMonorepo
Adrijan OmićevićArtikel lesen
·15 Minuten Lesezeit

Next.js + Supabase SaaS Starter Architecture (App Router): Auth, RLS, Billing, and Multi-Tenancy

A production-ready blueprint for a Next.js App Router + Supabase SaaS starter architecture: auth, Postgres data model, RLS policies, Stripe billing, and multi-tenant organization design with concrete examples.

Next.jsSupabaseSaaSApp RouterPostgreSQLRLSStripeMulti-tenancyArchitecture
Adrijan OmićevićArtikel lesen