Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- IT for business4 min
How to Plan an IT Budget for a Small Business
Split the IT budget into five lines — subscriptions, development, hardware, support and reserves — and plan it from business goals rather than from a wish list of software.
Practice - Web development3 min
Landing Page vs Corporate Website vs Web App: What You Need
A landing page sells one offer to one segment, a corporate website explains the company and its services, and a web app does work for the user. The goal defines the format, not the budget.
Basics - SEO3 min
JavaScript SEO: SSR, SSG and CSR for React and Next.js Sites
For SEO, the safest option is to serve ready HTML with content via SSR or SSG. CSR, where the page is built in the browser, forces search engines to render JS, which is slower and does not always work.
Advanced - DevOps4 min
k3s vs Minikube vs kind: Lightweight Kubernetes Compared
Use Minikube for comfortable local development with add-ons, kind for fast disposable clusters in CI, and k3s when you need a real lightweight cluster on a VPS or edge server; move to managed Kubernetes when uptime and operations start to cost more than the service.
Basics - AI & automation4 min
How Speech Recognition (ASR) Works: From Audio to Text
ASR turns a sound wave into features, a neural network maps them to words, and a language model picks the most likely text. Quality is measured with WER and must always be tested on your own recordings.
Basics - Programming3 min
Java vs Kotlin: Key Differences and Which to Choose
Kotlin is the standard for new Android projects; on the backend both run on the JVM and interoperate fully, so the choice depends on your team, existing codebase and preferred frameworks.
Basics - Mobile development4 min
Mobile App Architecture: MVVM and Clean Architecture in Practice
MVVM keeps screen logic in a ViewModel that exposes state, and Clean Architecture adds a domain layer of use cases and repository interfaces so business rules never depend on UI, network or database; for small apps, MVVM with repositories is usually enough.
Advanced - Marketing & analytics5 min
How to Choose a Digital Marketing Agency or Freelancer: Checklist
Choose a contractor who explains hypotheses instead of promising results, works inside your own ad accounts and analytics, reports on business metrics and agrees to a short trial with clear goals.
Practice - Design & UX4 min
Landing Page Design: Structure of an Effective Page
An effective landing page answers visitor questions in the order they arise: what is this, why should I care, why trust you, how does it work, what if, and what now. Each block solves one job and leads to a single target action.
Practice - Telegram & messengers4 min
Telegram Bots for Internal Processes: HR, Approvals and Reports
An internal Telegram bot handles short, repetitive actions well — requests, approvals, reports and alerts from business systems — but data and access rights must live in your systems, not in the chat.
Basics - E-commerce & CRM4 min
How to Optimize Product Cards on Uzum, Wildberries and Ozon
Marketplaces rank listings that closely match the query and sell well, so fill in titles and attributes for real search terms, make a clear main photo, work with reviews and never let stock run out.
Practice - Security4 min
How to Protect Your Company from Ransomware
Close the main entry points — phishing, exposed RDP and unpatched software — enable two-factor authentication, limit privileges, keep isolated backups, and disconnect infected devices from the network immediately if an attack happens.
Practice - Databases & data4 min
Power BI vs Metabase vs Looker Studio: Which BI Tool to Pick
Looker Studio is the fast free start for teams on Google Sheets and Google services; Metabase is the best fit when data lives in your own SQL database and someone can run a server; Power BI is for complex analytics and companies in the Microsoft ecosystem.
Practice - Hosting & cloud4 min
How to Move a Website to New Hosting Without Downtime
Lower DNS TTL in advance, build a full copy of the site on the new server, test it through your hosts file, run a final data sync and only then switch DNS, keeping the old server ready for rollback.
Advanced - IT careers4 min
How to Get an IT Internship and Make the Most of It
Look for internships on company career pages, job channels and through people you know, apply with one or two finished projects, and during the internship finish tasks end to end, ask good questions and openly discuss how to join the team.
Practice - Tools & no-code4 min
Common No-Code Automation Mistakes and How to Avoid Them
Most no-code automation failures are not platform bugs but missing basic hygiene: error alerts, duplicate protection, shared work accounts, documentation and usage monitoring; all of it takes about an hour to set up and saves weeks of investigation.
Practice - IT by industry4 min
Automating Guest Communication: From Pre-Arrival to Checkout
Guest messages work as a sequence triggered by booking events in the PMS: before arrival, at check-in, during the stay and after checkout, with staff stepping in only where a human is needed.
Practice - Networks & office IT4 min
How to View IP Cameras Remotely Without Exposing Them Online
The safest way to watch cameras remotely is through a VPN to the office network; a vendor P2P app is an acceptable compromise, while forwarding camera or NVR ports to the internet should be avoided.
Practice - IT for business4 min
Cutting IT Costs Without Hurting Your Product
Cut waste, not the whole budget: unused subscriptions, idle capacity, overlapping roles, weak contracts and technical debt that makes every release more expensive.
Advanced - Web development4 min
How to Read a Lighthouse Report and Fix the Issues
Lighthouse is a lab test that scores Performance, Accessibility, Best Practices and SEO; read the metrics and failed audits rather than the single score, run it in clean conditions several times, and fix images, JavaScript and render-blocking resources first.
Practice - SEO3 min
How to Add JSON-LD Schema Markup to Your Website
JSON-LD is a script type="application/ld+json" block using the Schema.org vocabulary to describe a page for search engines; add the fitting type, fill it with real data and check it in a validator.
Practice - DevOps3 min
kubectl Cheat Sheet: Commands You Use Every Day
Most daily Kubernetes work fits into about ten kubectl commands: get, describe, logs, exec, port-forward, scale, rollout, plus switching context and namespace.
Practice - AI & automation3 min
How to Build an AI Voice Agent for Phone Calls
A voice agent is a "speech recognition → LLM → speech synthesis" pipeline connected to telephony via SIP or a cloud PBX; success depends on low latency, correct interruption handling and clear rules for handing off to a human.
Practice - Programming3 min
What Are Closures in JavaScript? Explained with Examples
A closure is a function that remembers the variables from where it was created and keeps access to them even after the outer function has finished running.
Basics
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